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  • INSTRUMENTATION AND PHOTOGRAPHY  (1,099)
  • 1980-1984  (564)
  • 1965-1969  (535)
  • 1940-1944
  • 1984  (306)
  • 1983  (258)
  • 1969  (535)
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  • 1980-1984  (564)
  • 1965-1969  (535)
  • 1940-1944
Year
  • 1
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    Si:Bi array detectors and astronomical applications of the Goddard 10 micron camera (1983)
    In:  CASI
    Details
    Publication Date: 2004-12-04
    Description: An improved 4 to 18 micron array camera system was developed at NASA Goddard SFC for astronomical photometry, using an Aerojet Electro Systems Corp. 16 x 16 Si:Bi accumulation mode charge injection device (AMCID) which could be suitable for eventual low-background spaceflight applications. An astronomical observing program using this device was carried out as a collaboration between NASA Goddard (Infrared and Radio Astronomy Branch and Micro Electronics Branch), the Harvard/Smithsonian Center for Astrophysics, and Steward Observatory of the University of Arizona. In 1983 the camera system was revised, and a new Aeroject Si:Bi array with 16 x 16 active pixels was obtained from NASA/Ames Research Center as part of a new scientific collaboration between the Ames and Goddard infrared array research groups. The 16 x 16 device had sufficiently good sensitivity, uniformity and noise characteristics to be used for successful observations at the Mt. Lemmon 60 and 61 inch telescopes in May 1983. Complete laboratory characterization of the 16 x 16 array was carried out in summer of 1983. Initial results indicate that this detector has sensitivity and noise characteristics comparable to other devices from the same generation of Aerojet arrays.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Ames Research Center, Infrared Detector Technology Workshop; 12 p
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  • 2
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    Task 5 outgassing apparatus and gas analysis data, appendix I (1969)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Outgassing apparatus and gas analysis data for modular nuclear vehicle
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: HIGH-PERFORMANCE THERMAL PROTECT. SYSTEMS, VOL. 2 31 DEC. 1969 (SEE N70-30602 16-33)
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  • 3
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    Proton sensitivity of films used in Apollo Telescope Mount satellite missions (1969)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Proton sensitivity of films used in ATM satellite missions
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: RADIATION PHYS. RES. AT MSFC- RES. ACHIEVEMENTS REV., V. 3 1969; P 43-58
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  • 4
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    Distortion measurement of antennas under space simulation conditions with high accuracy and high resolution by means of holography (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The use of laser holography for measuring the distortion of antennas under space simulation conditions is described. The subject is the so-called double exposure procedure which allows to measure the distortion in the order of 1 to 30/micrometers + or - 0.5 per hologramme of an area of 4 m diameter max. The method of holography takes into account the constraints of the space simulation facility. The test method, the test set up and the constraints by the space simulation facility are described. The results of the performed tests are presented and compared with the theoretical predictions. The test on the K-Band Antenna e.g., showed a distortion of approximately 140/micrometers + or - 5/micrometers measured during the cool down from -10 C to -120 C.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center 13th Space Simulation Conf.; p 309-319
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  • 5
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    RIMSTAR: Rapid image scanning technology and archiving (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Conventional schemes for digitizing large volumes of photographic data are far too costly and time consuming to encourage the undertaking of the ambitious projects using traditional technology. There is a distinct need for fast digitizing systems such as could be derived from development of large format, optically multiplexed CCD systems designed to address these problems. The use of CCD chips for data handling and the capability of using polaroids in the optical path for reduced light scattering are discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 419-427
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  • 6
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    Photographic surveys of the southern sky (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Parameters of the UK 1.2 meter Schmidt telescope are described. Plates taken with this instrument are in two categories, those for systematic sky surveys and those taken at the request of research users. A collaborative project with the European Southern Observatory was undertaken to obtain a two-color survey of the sky south of -20 deg declination to complement the Palomar survey. A near infrared survey of the Galactic Plane and the Megallanic Clouds is being done. The area south of -20 deg and the zone between 0 deg and -15 deg are also being surveyed. Pending a decision on survey parameters, all available A quality prism plates are being retained to form a basis for systematic survey. Nearly half the plates taken on a service basis for the UK astronomical community are to fulfill nonsurvey requests. Plates taken for surveys which are not of A grade quality are also made available for research purposes.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 379-385
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  • 7
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    The preparation of the measurements at the PDS at the Padova Observatory: Report on an experience with the development of an astronomical data base environment (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Some software facilities used mainly for information retrieval and analysis at the Padova-Asiago Observatory are discussed. These facilities help guest and resident astronomers to make easier the preparation of plate measurements. The problems connected with the creation, use and management of a data base in a scientific (astronomical) environment are reviewed on the basis of the experience gathered during the last three years. The development plan of the user session environment and its possible applications in a computer network are briefly sketched.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 361-369
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  • 8
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    Plans for a fast image recording system at ESO (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A 256 diode-array will be installed as detector on the ESO OPTRONICS S-3000 measuring machine in order to increase the acquisition rate. A high intensity LED will be used as light source in a pulse mode. The data will be stored on a random access mass storage device as density values for later education. The scanning time for a 30 cm x 30 cm plate with a step size of 10 micron will be less than 10 hours while the dynamic range of the data is expected to be 2.5 density units with an offset of at least 1 unit.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 317-328
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  • 9
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    The automated photographic measuring facility at Cambridge (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The design and performance of the automated photographic measuring facility at Cambridge is described. It consists of a precision laser scanning microdensitometer connected to a series of computers that process the data on-line. Plates up to 350 mm square can be measured. The microdensitometer samples the plate to 12 bit accuracy at a speed of 230,000 samples/second. The positional accuracy is better than a micron. Other features include platen rotation and automatic focus.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 277-288
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  • 10
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    Techniques of isophotometry (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The expected performance of the Minnesota automated dual-plate scanner (APS) is discussed with regard to photometry, position measurement accuracy, and ability to classify images. In addition, a fast algorithm for calculating image parameters is described.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 267-276
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  • 11
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    The current status and future upgrade of the PDS at the Royal Greenwich Observatory (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Various aspects of the performance of the PDS 1010A microdensitometer are described. The primary points in an upgrade propsal for the unit are outlined. Photometric instabilities in the PDS are mentioned.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 129-134
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  • 12
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    Microdensitometer electronics modification (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Minor modifications of electronic components in the PDS 1010A microdensitometer are discussed. The operational requirements and performance limitations of the PDS are noted. Replacement of the photomultiplier and front-end analog circuitry significantly improved the photometric performance of the PDS. The improvement in density repeatability is marked, and the permissible density slew speed is greatly increased.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 121-128
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  • 13
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    Performance testing of the high altitude observatory PDS microdensitometer (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: High Altitude Observatory HAO microdensitometer undergoes monthly testing to assure its consistent performance. These tests check positional and photometric stability at the 10 micron aperture level. The HAO test procedure is designed to run without operator intervention following initial configuration of the microdensitometer for each subprocedure. Specialized test software is resident in the PDP 8. The operator selects the proper subprocedure by entering commands. Once computer control is established, it is not relinquished until the test is complete.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Astron. Microdensitometry Conf.; p 19-34
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  • 14
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    Diagnosing a PDS microdensitometer (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A number of diagnostic tests are developed for the Photometric Data System PDS 2020G microdensitometer to monitor its performance and to isolate various electromechanical problems. A number of tests which help to diagnose problems with the photometer, positional accuracy and data collection are described. The tests include: (1) scanning a razor blade edge to study the response of the photometer and zero point losses in the coordinate system, (2) scanning a long straight line to evaluate the drunkness of the stage motions, (3) scanning photometric step wedge calibrations to study the response of the photometer, and (4) measurement of a series of high signal to noise plates of the same region of the sky to evaluate the overall performance of the microdensitometer. A variety of electronic tests to isolate electromechanical problems are also performed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 3-18
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  • 15
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    Ruled and holographic gratings experiment (A0138-5) (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The behavior of ruled and holographic gratings with various coatings after extended exposure to the space environments was examined. The coatings and differentiating between the influences of vacuum and solar illumination were examined. In the past, several ruled and holographic gratings with various coatings were successfully flown on rocket experiments. Future utilizations of such gratings are considered for the Space Telescope and for various Spacelab projects under development. The techniques which is used to replicate gratings can also be used to obtain a wide range of lightweight optical components, including sophisticated aspherical, highly polished mirrors.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Langley Research Center Long Duration Exposure Facility (LDEF); p 163-164
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  • 16
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    Holographic data storage crystals for LDEF (A0044) (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Electro-optic holographic recording systems were developed. The spaceworthiness of electro-optic crystals for use in ultrahigh capacity space data storage and retrieval systems are examined. The crystals for this experiment are included with the various electro-optical components of LDEF experiment. The effects of long-duration exposure on active optical system components is investigated. The concept of data storage in an optical-phase holographic memory is illustrated.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Langley Research Center Long Duration Exposure Facility (LDEF); p 152-153
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  • 17
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    Multiple-foil microabrasion package (A0023) (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The specific scientific objectives of this experiment are to measure the spatial distribution, size, velocity, radiance, and composition of microparticles in near-Earth space. The technological objectives are to measure erosion rates resulting from microparticle impacts and to evaluate thin-foil meteor 'bumpers'. The combinations of sensitivity and reliability in this experiment will provide up to 1000 impacts per month for laboratory analysis and will extend current sensitivity limits by 5 orders of magnitude in mass.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Langley Research Center Long Duration Exposure Facility (LDEF); p 117-120
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  • 18
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    Computer simulation of the effects of transmission-averaging in microdensitometry (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: One of the principal advantages of electrography when compared to photography is the nearly linear relationship between source intensity versus resulting image density. This property allows for simplified and more accurate photometric calibration and permits a certain degree of extrapolation of the calibration to beyond the limits of the faintest photoelectric standard on an exposure. The desires to extract quantitative photometric information from electrographic (or photographic) negatives and to convert this information into a digital format for computer analysis or enhancement led to the widespread use of scanning microdensitometers to perform this A-to-D conversion. Therefore it is of vital importance to understand and, if practical, to avoid any nonlinearities which may be introduced during microdensitometry of electrographic emulsions.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 429-431
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  • 19
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    The role of the Automated Plate Measuring (APM) machine in developing a program to discover QSOs automatically (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The scanning of a direct plate with the automatic plate measuring machine which results in the automated selection and description of images is described. The selection of QSO candidates based on color-color diagrams constructed from the APM image data and the analysis of APM raster data for QSOs selected visually from objective prism plates are also discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 417-418
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  • 20
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    Next generation microdensitometer (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The fundamental limitations of microdensitometers are reviewed and the design of a high microdensitometer described. The system will digitize to 16 bits in transmission at a speed of 100 kHz using a laser beam moving over the emulsion. Other features are automatic platen rotation and autofocus. The cost will be of order $200,000.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 333-341
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  • 21
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    A new measuring machine in Paris (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A new photographic measuring machine is under construction at the Paris Observatory. The amount of transmitted light is measured by a linear array of 1024 photodiodes. Carriage control, data acquisition and on line processing are performed by microprocessors, a S.E.L. 32/27 computer, and an AP 120-B Array Processor. It is expected that a Schmidt telescope plate of size 360 mm square will be scanned in one hour with pixel size of ten microns.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 329-332
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  • 22
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    A preliminary analysis of a diode array for densitometry (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A diode-array based image digitizer manufactured by the Eikonix Corp. was tested to see if it can be adapted to the exacting requirements of astronomical densitometry. As the device is presently configured, a dynamic range of 400:1 can be achieved routinely, with a positional accuracy of 2 microns or better. An area of 2048 X 2048 pixels can be scanned in about 5 minutes. Preliminary tests indicate that several relatively simple enhancements can improve both the photometric and the positional accuracy of the device.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 307-315
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  • 23
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    A next generation microdensitometer? (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Motivations for construction of a next generation microdensitometer (NGM) are presented and their effect on the NGM design is discussed. A prototype of such an engine has been constructed at KPNO. Its design and performance is reviewed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 291-305
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  • 24
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    Why use a microdensitometer other than a PDS? (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The motivations for constructing a special purpose built microdensitometer are explored. The salient points of some of the microdensitometers are described and the advantages and disadvantages of the system in comparison to a PDS machine are outlined. The principal gain is in speed though at the expense of loss in dynamic range. The effects on the astronomical results are demonstrated. The astronomical results already obtained with these machines and from ongoing projects are described. It is shown that there is a large class of important astronomical problems which can be tackled by these machines but which are not feasibile on the PDS because of the speed of the machine.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 209-228
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  • 25
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    Improvements to the Photometric response and positional accuracy of the Yale PDS 2020G microdensitometer (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The necessity to incorporate several hardware changes to optimize the Yale PDS 2020G microdensitometer for photometric and astrometric research are discussed. The properties of a new high speed photometer and a positional calibration system are described. The new photometer incorporates a high speed logarithmic analog to digital converter with more than 10 times the resolution of the former system and a cycle time of approximately 50 usec. The positional calibration system monitors the drunkenness of the stages with respect to fixed index lines and enables the correction of the +/- 5 micro stage errors to an accuracy of better than 1 micro.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 151-161
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  • 26
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    Performance of the ESO PDS (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The astrometric and photometric performance of the PDS 1010A microdensitometer are discussed, including the tests used for checking it. The instrument was shown to satisfy operational requirements for photometric measurements of astronomical plates with respect to dynamic range and stability.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 89-95
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  • 27
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    Characteristics of the MSFC, PDS microdensitometer (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The results of several parametric studies carried out on the Marshall Space Flight Center (MSFC) Photometric Data System PDS-10 microdensitometer are summarized for the purposes of documenting the operation and limitations of the system for inhouse research and to provide a bench mark for comparison with other microdensitometers. The results are grouped into four general areas. These are: (1) system overall stability to drift, (2) photometric linearity and noise, (3) reproducibility, and (4) scanning performance. Test data taken in order to evaluate the interdependency of scan speed, noise and position are included. Shown also are results of tests for system stability, reproducibility, stray light and PMT settling time.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center Astron. Microdensitometry Conf.; p 71-88
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  • 28
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    Microdensitometer errors: Their effect on photometric data reduction (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The performance of densitometers used for photometric data reduction of high dynamic range electrographic plate material is analyzed. Densitometer repeatability is tested by comparing two scans of one plate. Internal densitometer errors are examined by constructing histograms of digitized densities and finding inoperative bits and differential nonlinearity in the analog to digital converter. Such problems appear common to the four densitometers used in this investigation and introduce systematic algorithm dependent errors in the results. Strategies to improve densitometer performance are suggested.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 45-58
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  • 29
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    Experiences with a PDS 2020 GM (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Various perturbations which occurred during the operation of a PDS 2020 GM microdensitometer are reviewed. The effects of elevated temperature, vibration, transient electrical noise, and photometric perturbations are briefly discussed. Sample astronomical results from the PDS 2020 GM unit are presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 97-106
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  • 30
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    Positive-feedback photometric drift in the PDS (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Digitizing flatfield images produces conditions in the Photometric Data System PDS which cause the measured density to drift by as much as .1 DN during a 10 minute interval. The drift occurs when the PDS, set up in equilibrium at fog level, subsequently scans a reasonably dense region for periods of longer than a few minutes. The drift is manifested primarily as a positive shift in density that is approximately the same for all densities. If the fog level is assumed to be in fact constant and is monitored during scans of flat fields, the PDS drift may be removed by subtracting the difference between the observed fog level and its assumed constant value for each pixel. This function is then smoothed and subtracted, as a function of scan line, from the measured density. The fog level is then adjusted to a standard value by adding a constant. The result is a flattened scan with PDS drift removed to the accuracy within which the fog level drift matches the drift at other levels.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Astron. Microdensitometry Conf.; p 59-69
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  • 31
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    Photometric and positional accuracy of the PDS Bonn in view of astronomical requirements (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: The photometric and positional accuracy of a microdensitometer is examined. A calibrating plate with different density areas available is used to determine photometric accuracy. Position accuracy is evaluated by multiple scans of sharp edges and analyzed statistically.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center Astron. Microdensitometry Conf.; p 35-43
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  • 32
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    LDEF thermal measurements system (P0003) (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: Many of the passive experiments flying on LDEF will be significantly enhanced if data are available postflight to indicate the temperature time histories of test materials and other specimens exposed in the experiments. The baseline LDEF approach was to provide postflight calculated temperature histories of experiment boundaries and solar flux data for the mission, which can in turn be used by each investigator to calculate the temperature time histories for critical experiment components. Without in-flight temperature measurements, a substantial uncertainty will exist in the calculated temperatures. The data measured by the themal measurement system (THERM) will significantly improve postflight knowledge of temperatures experienced by LDEF experiments. The THERM data will also be valuable in validating the LDEF thermal design concept and in providing better design data for experimenters on future LDEF missions. The objectives of this experiment are to determine the history of the interior average temperatures of the LDEF for the total orbital mission and to measure the temperatures of selected components and thermal boundary conditions.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Long Duration Exposure Facility (LDEF); p 78-81
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  • 33
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    Ground truth/sensor correlation (1969)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Investigating remote sensing applications to simple geological features using microwave radiometers
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER STATUS REV., VOL. 2 1969 (SEE N71-11976 02-13)
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    Interferometer experiment on Nimbus 3 - Preliminary results (1969)
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    Publication Date: 2011-08-16
    Description: Nimbus 3 satellite-borne Michelson interferometer IR spectrometer for spectrum measurement, obtaining temperature, water vapor and ozone vertical distribution
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; ADEMIE DES SCIENCES
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  • 35
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    Housing quality in urban areas - Data acquisition and classification through the analysis of remote sensor imagery (1969)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Color infrared aerial photography for acquiring and classifying data on urban housing quality
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER 2D ANN. EARTH RESOURCES AIRCRAFT PROGRAM STATUS REV., VOL. 1 1969 (SEE N71-19251 08-13)
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  • 36
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    Experimental results in the remote sensing of gases from high altitudes (1969)
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    Publication Date: 2011-08-16
    Description: Optical correlation methods for remote sensing of trace gases at high altitudes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER 2D ANN. EARTH RESOURCES AIRCRAFT PROGRAM STATUS REV., VOL. 2 1969 (SEE N71-11976 02-13)
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  • 37
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    Recent progress in tank, shipboard, and helicopter tests of the Fraunhofer line discriminator (1969)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Developing line discriminator for detecting substances that fluoresce in water near sodium D2 Fraunhofer line
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER 2D ANN. EARTH RESOURCES AIRCRAFT PROGRAM STATUS REV., VOL. 2 1969 (SEE N71-11976 02-13)
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    Multispectral data collection and instrumentation studies (1969)
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    Publication Date: 2011-08-16
    Description: Research progress on multispectral data collection and infrared instrumentation for specially configured aircraft
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER 2D ANN. EARTH RESOURCES AIRCRAFT PROGRAM STATUS REV., VOL. 2 1969 (SEE N71-11976 02-13)
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  • 39
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    Microwave studies and instrumentation for the earth resources program (1969)
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    Publication Date: 2011-08-16
    Description: Failure analysis of recovery flashing xenon lamp on Apollo 10 flight
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER 2D ANN. EARTH RESOURCES AIRCRAFT PROGRAM STATUS REV., VOL. 2 1969 (SEE N71-11976 02-13)
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  • 40
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    Multispectral viewers (1969)
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    Publication Date: 2011-08-16
    Description: Multispectral additive color viewing devices for earth resources applications
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. MANNED SPACECRAFT CENTER 2D ANN. EARTH RESOURCES AIRCRAFT PROGRAM STATUS REV., VOL. 2 1969 (SEE N71-11976 02-13)
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  • 41
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    Heterodyne frequency measurements and frequency calibration standards for tunable diode lasers (1983)
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    Publication Date: 2011-08-18
    Description: New frequency calibration tables are required to keep abreast of the resolution attainable by currently available tunable lasers. One key to the generation of tables with requisite accuracy involves accurate heterodyne frequency measurements; another key consists of reliable fitting and analysis. Coordinated activity in NBS involves selection of suitable molecular calibration candidates, their frequency measurement and analysis, and dissemination of the results in the form of frequency calibration tables. Current status of these efforts is described.
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  • 42
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    Optogalvanic photodetachment spectroscopy (1983)
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    Publication Date: 2011-08-18
    Description: A new extension to optogalvanic spectroscopy, in which electrons detached from negative ions formed in the discharge are observed as a function of incident laser wavelength, has been developed. The determination of the electron affinities of I(-) and Cl(-) atomic ions is described. The potential of the technique for studying the spectroscopy of molecular negative ions is also discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Journal de Physique (ISSN 0449-1947); 44; C7-461 t
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  • 43
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    Reduction of flow-measurement uncertainties in laser velocimeters with nonorthogonal channels (1984)
    In:  Other Sources
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    Publication Date: 2011-08-18
    Description: Previously cited in issue 5, p. 642, Accession no. A83-16486
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: AIAA Journal (ISSN 0001-1452); 22; 1115-112
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  • 44
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    Requirements for a passive IR advanced moisture and temperature sounder (1984)
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    Publication Date: 2011-08-18
    Description: The design of a high spectral resolution, lambda/delta lambda being approximately 1200 IR, sounder capable of increasing the vertical resolution of atmospheric temperature profiles and achieving a rms accuracy of approximately 1.5 K is discussed. This sounder permits improved determination of meteorological parameters on cloudiness, surface temperature, and air-surface interactions. A set of channels from the high J lines in the R branch of the 4.3-micron CO2 band complemented by a larger set of window, humidity, and temperature channels in the 3.7-, 6.3-, 9-, and 15-micron regions is used. Design and simulation studies show that such a sounder is within the present state of the art.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics (ISSN 0003-6935); 23; 979-989
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  • 45
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    Solar disk sextant (1984)
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    Publication Date: 2011-08-18
    Description: This paper presents the conceptual design of an instrument, called the solar disk sextant, to be used in space to measure the shape and the size of the sun and their variations. The instrumental parameters required to produce sufficient sensitivity to address the problems of solar oblateness, solar pulsations, and global size changes of climatic importance are given.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics (ISSN 0003-6935); 23; 1235-123
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  • 46
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    Nd:YAG holographic interferometer for aerodynamic research (1983)
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    Publication Date: 2011-08-18
    Description: A holographic interferometer system has been installed in the NASA Ames 2- by 2-Foot Transonic Wind Tunnel. The system incorporates a modern 10 pps, Nd:YAG pulsed laser which provides reliable operation and is easy to align. The spatial filtering requirements of the unstable resonator beam are described, as well as the integration of the system into the existing schlieren system. A two-plate holographic interferometer is used to reconstruct flow field data. For static wind tunnel models, the single exposure holograms are recorded in the usual manner; however, for dynamic models such as oscillating airfoils, synchronous laser hologram recording is used.
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  • 47
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    A laser interferometer for measuring skin friction in three-dimensional flows (1984)
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    Publication Date: 2011-08-18
    Description: Previously cited in issue 05, p. 643, Accession no. A83-16685
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: AIAA Journal (ISSN 0001-1452); 22; 557-559
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  • 48
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    Simple high-temperature thermal diffusivity apparatus (1984)
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    Publication Date: 2011-08-18
    Description: A simple and inexpensive thermal diffusivity apparatus is described for measurement up to 1600 K. The novel features of apparatus include a light pipe, a long furnace, and a differential thermocouple. A low heat-load sample holder for clamping the sample in a vertical position is also described. The results of measurements on AXM-5Q graphite are reported.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Review of Scientific Instruments (ISSN 0034-6748); 55; 235-237
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  • 49
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    The Harp probe - An in situ Bragg scattering sensor (1984)
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    Publication Date: 2011-08-19
    Description: A wave sensor, consisting of parallel, evenly spaced capacitance wires, whose output is the sum of the water surface deflections at the wires, has been built and tested in a wave tank. The probe output simulates Bragg scattering of electromagnetic waves from a water surface with waves; it can be used to simulate electromagnetic probing of the sea surface by radar. The study establishes that the wave probe, called the 'Harp' for short, will simulate Bragg scattering and that it can also be used to study nonlinear wave processes.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Journal of Atmospheric and Oceanic Technology (ISSN 0739-0572); 1; 358-371
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    Radiosonde pressure sensor performance - Evaluation using tracking radars (1984)
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    Publication Date: 2011-08-19
    Description: The standard balloon-borne radiosonde employed for synoptic meteorology provides vertical profiles of temperature, pressure, and humidity as a function of elapsed time. These parameters are used in the hypsometric equation to calculate the geopotential altitude at each sampling point during the balloon's flight. It is important that the vertical location information be accurate. The present investigation was conducted with the objective to evaluate the altitude determination accuracy of the standard radiosonde throughout the entire balloon profile. The tests included two other commercially available pressure sensors to see if they could provide improved accuracy in the stratosphere. The pressure-measuring performance of standard baroswitches, premium baroswitches, and hypsometers in balloon-borne sondes was correlated with tracking radars. It was found that the standard and premium baroswitches perform well up to about 25 km altitude, while hypsometers provide more reliable data above 25 km.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Journal of Atmospheric and Oceanic Technology (ISSN 0739-0572); 1; 321-327
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    A SAR correlation algorithm which accommodates large-range migration (1984)
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    Publication Date: 2011-08-19
    Description: This paper presents an algorithm for azimuth correlation of synthetic aperture radar (SAR) data with extraordinarily large-range migration which cannot be accommodated by the existing frequency domain interpolation approach used in current Seasat SAR processing. A mathematical model is provided for the SAR range-correlated point-target response both in the spatial and frequency domains. A simple and efficient processing algorithm derived from the exact two-dimensional correlation algorithm is given. This algorithm enables azimuth correlation by two cascaded one-dimensional correlation steps. The first step is to transform the range-correlated SAR data into the frequency domain in azimuth, followed by a newly developed range convolution filter to correct the range-dispersed spectrum of the range-correlated point-target response (RCPTR). The second step is the frequency-domain range migration correction approach for the azimuth compression. Simulation results provided here indicate that this processing algorithm yields a satisfactory compressed impulse response for SAR data with large-range migration whereas previous methods were subject to a broadening of the impulse response along range.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: IEEE Transactions on Geoscience and Remote Sensing (ISSN 0196-2892); GE-22; 592-597
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    Differential absorption lidar technique for measurement of the atmospheric pressure profile (1983)
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    Publication Date: 2011-08-18
    Description: A new two-wavelength lidar technique for remotely measuring the pressure profile using the trough absorption region between two strong lines in the oxygen A band is described. The theory of integrated vertical path, differential ranging, and horizontal-path pressure measurements is given, with methods to desensitize and correct for temperature effects. The properties of absorption troughs are described and shown to reduce errors due to laser frequency jitter by up to two orders of magnitude. A general analysis, including laser bandwidth effects, demonstrates that pressure measurements with an integrated-vertical-path technique are typically fifty times more accurate than with a differential ranging technique. Simulations show 0.1-0.3 percent accuracy for ground and Shuttle-based pressure-profile and surface-pressure experiments.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics (ISSN 0003-6935); 22; 3759-377
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    Laser-induced fluorescence of green plants. I - A technique for the remote detection of plant stress and species differentiation (1984)
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    Publication Date: 2011-08-18
    Description: The laser-induced fluorescence (LIF) of green plants was evaluated as a means of remotely detecting plant stress and determining plant type. Corn and soybeans were used as representatives of monocots and dicots, respectively, in these studies. The fluorescence spectra of several plant pigments was excited with a nitrogen laser emitting at 337 nm. Intact leaves from corn and soybeans also fluoresced using the nitrogen laser. The two plant species exhibited fluorescence spectra which had three maxima in common at 440, 690, and 740 nm. However, the relative intensities of these maxima were distinctly different for the two species. Soybeans had an additional slight maxima at 525 nm. Potassium deficiency in corn caused an increase in fluorescence at 690 and 740 nm. Simulated water stress in soybeans resulted in increased fluorescence at 440, 525, 690, and 740 nm. The inhibition of photosynthesis in soybeans by 3-(3-4-dichlorophenyl)-1-1-dimethyl urea (DCMU) gave incresed fluorescence primarily at 690 and 740 nm. Chlorosis as occurring in senescent soybean leaves caused a decrease in fluorescence at 690 and 740 nm. These studies indicate that LIF measurements of plants offer the potential for remotely detecting certain types of stress condition and also for differentiating plant species.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics (ISSN 0003-6935); 23; 134-142
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    Airborne detection of oceanic turbidity cell structure using depth-resolved laser-induced water Raman backscatter (1983)
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    Publication Date: 2011-08-18
    Description: Airborne laser-induced, depth-resolved water Raman backscatter is useful in the detection and mapping of water optical transmission variations. This test, together with other field experiments, has identified the need for additional field experiments to resolve the degree of the contribution to the depth-resolved, Raman-backscattered signal waveform that is due to (1) sea surface height or elevation probability density; (2) off-nadir laser beam angle relative to the mean sea surface; and (3) the Gelbstoff fluorescence background, and the analytical techniques required to remove it. When converted to along-track profiles, the waveforms obtained reveal cells of a decreased Raman backscatter superimposed on an overall trend of monotonically decreasing water column optical transmission.
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    Type: Applied Optics (ISSN 0003-6935); 22; 3778-378
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    A balloon-borne microwave limb sounder for stratospheric measurements (1984)
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    Publication Date: 2011-08-19
    Description: The balloon-borne microwave limb sounder (BMLS) measures atmospheric thermal emission from millimeter wavelength spectral lines to determine vertical profiles of stratospheric species. The instrument flown to date operates at 205 GHz to measure ClO, O3, and H2O2. A 63 GHz radiometer will be added to test the technique for determining tangent point pressure from the MLS experiment on the upper atmosphere research satellite (UARS). Many additional species could also be measured by the BMLS. A radiometer at 270 GHz would provide measurements of HO2, NO2, HNO3, N2O, O-16O-18O-16, and HCN. With this addition, the BMLS can test the current theory of O3 photochemical balance in the upper stratosphere.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073); 32; 407-433
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    A cryogenic blackbody for millimeter wavelengths (1984)
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    Publication Date: 2011-08-19
    Description: The present cryogenic blackbody reference, or 'cold load', for mm-wavelength radiation has an emissivity of more than 0.99 over a two-octave wavelength range and can be used as a calibrating standard for sensitive IR photometers. The transmittance spectrum obtained indicates that wave impedance and index do not vary significantly over the 80-360 GHz range.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: International Journal of Infrared and Millimeter Waves (ISSN 0195-9271); 5; 1507-151
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    Comparative measurements using different particle size instruments (1984)
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    Publication Date: 2011-08-19
    Description: This paper discusses the measurement and comparison of particle size and velocity measurements in sprays. The general nature of sprays and the development of standard, consistent research sprays are described. The instruments considered in this paper are: pulsed laser photography, holography, television, and cinematography; laser anemometry and interferometry using visibility, peak amplitude, and intensity ratioing; and laser diffraction. Calibration is by graticule, reticle, powders with known size distributions in liquid cells, monosize sprays, and, eventually, standard sprays. Statistical analyses including spatial and temporal long-time averaging as well as high-frequency response time histories with conditional sampling are examined. Previous attempts at comparing instruments, the making of simultaneous or consecutive measurements with similar types and different types of imaging, interferometric, and diffraction instruments are reviewed. A program of calibration and experiments for comparing and assessing different instruments is presented.
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    Shot noise limited detection of OH using the technique of laser-induced fluorescence (1984)
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    Publication Date: 2011-08-19
    Description: Nearly shot-noise limited detection of OH using the technique of laser-induced fluorescence is reported. A LIDAR configuration is used to excite fluoresence in a large volume and a narrow-bandwidth interference filter provides spectral discrimination. This arrangement alleviates the effect of ozone interference and facilitates image processing at relatively close distances. The detection limit is determined mainly by the short-noise of the solar background. Ground-based measurements in Dearborn indicate a detection limit of better than 1 x 10 to the 6th power OH/cubic cm over a forty-minute acquisition period. Under favorable conditions, a comparable detection limit was also observed for airborne measurements.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics (ISSN 0003-6935); 23; 4076-408
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    Response characteristics of laser diffraction particle size analyzers - Optical sample volume extent and lens effects (1984)
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    Publication Date: 2011-08-19
    Description: The response characteristics of laser diffraction particle sizing instruments were studied theoretically and experimentally. In particular, the extent of optical sample volume and the effects of receiving lens properties were investigated in detail. The experimental work was performed with a particle size analyzer using a calibration reticle containing a two-dimensional array of opaque circular disks on a glass substrate. The calibration slide simulated the forward-scattering characteristics of a Rosin-Rammler droplet size distribution. The reticle was analyzed with collection lenses of 63 mm, 100 mm, and 300 mm focal lengths using scattering inversion software that determined best-fit Rosin-Rammler size distribution parameters. The data differed from the predicted response for the reticle by about 10 percent. A set of calibration factor for the detector elements was determined that corrected for the nonideal response of the instrument. The response of the instrument was also measured as a function of reticle position, and the results confirmed a theoretical optical sample volume model presented here.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Optical Engineering (ISSN 0091-3286); 23; 610-619
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    Photometry for interpretation (1969)
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    Publication Date: 2011-08-16
    Description: Photometry as aid for aerial photography, discussing resolution, mapping, etc
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; VUE TECHNIQUE CECLES
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    Quantitative interpretation of three- dimensional weakly refractive phase objects using holographic interferometry (1969)
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    Publication Date: 2011-08-16
    Description: Quantitative interpretation of three dimensional weakly refractive phase objects using holographic interferometry, determining index of refraction
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    Type: ; ACE(
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  • 62
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    The Pioneer 8 cosmic dust experiment. (1969)
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    Publication Date: 2011-08-16
    Description: Cosmic dust particle direction, velocity and mass from ionization and momentum measurements by dust sensor during impact on Pioneer 8 satellite
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; ADEMIE DES SCIENCES
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    Frequency response of thin-film thermal detectors. (1969)
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    Description: Frequency response of thin film thermal detectors, discussing steady state harmonic response proportionality to film thickness and thermal conductivity
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; SEARCH(
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  • 64
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    Gauge comparison study of the magnetron, buried collector, bent-beam, and nude modulated Bayard-Alpert gauges. (1969)
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    Publication Date: 2011-08-12
    Description: Bent beam ionization gage linearity from calibrated nude Modulated Bayard-Alpert /MBA/ gage, discussing buried collector and tabulated magnetron gages
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    Type: ; ADEMIE DES SCIENCES
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  • 65
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    A novel use of a telescope to photograph metal diaphragm openings. (1969)
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    Publication Date: 2011-08-12
    Description: Image converter camera and astronomical telescope arrangement for photographing metal diaphragm openings in shock tube
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; ADEMIE DES SCIENCES
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  • 66
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    Gondola azimuth stabilization using a simple lunar tracker. (1969)
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    Description: Balloon-borne gondola azimuth stabilization using lunar tracker
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    Type: ; ACE(
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    Tracer diffusion studies on metals using a microtome. (1969)
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    Publication Date: 2011-08-12
    Description: Z-micron sections removed from metal specimens by microtome for radiotracer study of mass dependence of self diffusion
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; STITUTION OF ENGINEE
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  • 68
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    An improved collimator for extreme ultraviolet and X rays. (1969)
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    Publication Date: 2011-08-12
    Description: Mechanical collimator using random aperture arrays for celestial observation at extreme UV and X rays
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; STITUTION OF ENGINEE
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  • 69
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    Improved method of injecting the audio signal in automatic Langmuir probe second derivative plotters. (1969)
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    Publication Date: 2011-08-12
    Description: Data distortion elimination by improved superimposing of sinusoidal audio frequency signal on DC voltage of automatic Langmuir probe second derivative plotters
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; 125-127.(
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    A nanosecond Kerr magneto-optic camera. (1969)
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    Details
    Publication Date: 2011-08-12
    Description: Kerr magneto-optic camera for 10 nsec exposures of dynamic magnetization configuration in magnetic thin film during high speed flux reversal
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  • 71
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    Operating characteristics of the Stratoscope. II balloon-borne telescope. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Stratoscope II unmanned balloon-borne telescope design, detailing pointing, focusing and thermal characteristics
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  • 72
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    An experimental twenty-inch segmented active mirror. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Segmented active mirror optics design concept for lightweight optically stable primary reflector used in large orbiting astronomical telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 73
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    Degradation of the time characteristics of surface barrier detectors with fission fragment dose. (1969)
    In:  Other Sources
    Details
    Publication Date: 2011-08-12
    Description: Differential energy losses of fission fragments in thin carbon films as function of mass and initial energy mapped by time of flight method
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  • 74
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    Optical design of a glancing incidence X-ray telescope. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Optical design of Wolter type 1 glancing incidence X ray telescope for 6-100 A wavelength region, describing results of laboratory and rocket flight tests of prototype
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  • 75
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    A double beam interferometer for the middle infrared. (1969)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Double beam Michelson interferometer for middle IR with moving mirrors operating in constant velocity mode, applying method to atmospheric emission spectra
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; TROPHYSICAL JOURNAL
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  • 76
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    Wide range pulse height discriminator with low power drain. (1969)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Wide range pulse height discriminator with milliwatt power drain for use in nuclear experiments on scientific satellites
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 77
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    Photogrammetry with surface-based images. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Mars landing site topography reconstructted via stereoscopic pictures returned by surface-based imaging systems
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 78
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    Regulation of atomic hydrogen flow with a platinum wire detector. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Pt wire detector for flow regulation of atomic hydrogen beam, noting hydrogen maser application
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 79
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    Satellite imagery of the earth. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Satellite IR hyperaltitude imagery for earth resources application, obtaining geological, meteorological and hydrological information
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 80
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    Out-of-this-world photogrammetry. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: NASA lunar survey and mapping for generating Apollo satellite landing navigation control, using analytic photogrammetry, camera position and altitude data of lunar topography
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  • 81
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    The thermal ion and electron trap experiments on the Explorer XXXI satellite. (1969)
    In:  Other Sources
    Details
    Publication Date: 2011-08-12
    Description: Planar thermal ion and electron trap experiments on Explorer 31 satellite, measuring ion and electron density and temperature and ionic composition
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 82
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    Magnetically focused electronographic image converters for space astronomy applications. (1969)
    In:  Other Sources
    Details
    Publication Date: 2011-08-12
    Description: Magnetically focused electronographic image converters in far UV photography and spectroscopy in space astronomy applications
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; 125-127.(
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  • 83
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    Unknown
    Clevis design for compact tension specimens used in plane strain fracture toughness testing. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Clevis design for reduced friction errors associated with round hole clevis in plane strain fracture toughness measurements
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  • 84
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    An application of optical telemetry to shock tube measurements. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Optical carrier single channel telemetry system providing complete electrical isolation between shock tube data acquisition and data recording instrumentation
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 85
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    Space-borne optical telescopes - An introduction. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Spaceborne optical telescopes requirements and development including mirror material and construction, optical design, servocontrol, etc
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 86
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    Guiding system of the spectro-stratoscope. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Guiding system of Spectro-Stratoscope /balloon-borne solar telescope/, describing hydrostatic bearing and torque motor
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  • 87
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    High resolution balloonborne temperature sensor. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Error analysis of high resolution balloon-borne temperature sensor and comparison of temperature data with simultaneous rawinsonde measurements
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  • 88
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    Laser display systems. II. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Holographic displays using ultrasonic vibrations or laser outputs as optical sources, discussing recording materials, responses and computer applications
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 89
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    Getting more out of Ranger pictures by computer. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Ranger pictures improvement by computer, eliminating image distortion due to electronic imaging systems
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    Type: ; YAL SOCIETY (
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  • 90
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    A polarimeter for measurement of transient retardation changes (1969)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Electronic polarimeter using signal sampling technique and feedback to measure periodic retardation changes
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    Type: ; 327 (
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  • 91
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    Diffraction plates for classroom demonstrations. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Diffraction plates for classroom demonstrations of Fraunhofer patterns, Babinet principle and Rayleigh resolution by computer generation
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  • 92
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    Comparison of cylindrical electrostatic probe measurements on Alouette II and Explorer XXXI satellites. (1969)
    In:  Other Sources
    Details
    Publication Date: 2011-08-12
    Description: Cylindrical electrostatic probe measurements on Alouette 2 and Explorer 31, considering implications for future missions
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  • 93
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    Holographic contouring via multifrequency lasers. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Holographic image range contouring produced by multifrequency emission from resonant output reflector in pulsed ruby laser cavity
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  • 94
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    Cylindrical electrostatic probes employed on Alouette II and Explorer XXXI satellites. (1969)
    In:  Other Sources
    Details
    Publication Date: 2011-08-12
    Description: Cylindrical electrostatic probes on Alouette 2 and Explorer 31 satellites used in intersatellite comparison of directly measured ionospheric electron temperature and density
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  • 95
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    A dual-beam source of actinic light for photosynthesis research. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Dual beam white or nearly monochromatic light source providing programmed repetitive sample illumination with variable intensity, pulse duration and sequence for photosynthesis research
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  • 96
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    Infrared radiometer for the 1969 Mariner mission to Mars. (1969)
    In:  Other Sources
    Details
    Publication Date: 2011-08-12
    Description: Two channel IR radiometer for 1969 Mariner mission measuring equivalent black body surface temperature
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; 125-127.(
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  • 97
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    The Goddard Experiment Package - An automated space telescope. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Goddard Experiment Package /automated spaceborne telescope design/ for stars and nebulae UV spectral emittance measurements
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 98
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    Precise attitude stabilization of a large orbiting telescope coupled to a crew compartment. (1969)
    In:  Other Sources
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    Publication Date: 2011-08-12
    Description: Equations of motion computerized simulation for attitude stabilization of orbiting telescope coupled to crew compartment
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  • 99
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    Evaluation of multipoint interaction in the design of a thin diffraction-limited active mirror. (1969)
    In:  Other Sources
    Details
    Publication Date: 2011-08-12
    Description: Control system for thin diffraction limited orbiting astronomical telescope mirror based on structural analysis of static deflections
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  • 100
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    Performance of ultraviolet gratings as affected by simulated space environment. (1969)
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    Publication Date: 2011-08-12
    Description: Electron bombardment effects on performance characteristics of UV gratings
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