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  • INSTRUMENTATION AND PHOTOGRAPHY  (36)
  • 2015-2019
  • 1970-1974  (36)
  • 1
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    Absolute radiometry in space astronomy (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-27
    Description: Precision radiometric and spectrometric intensity measurements for calibration of space telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, WASHINGTON OPT. TELESCOPE TECHNOL. 1970; P 775-780
    Format: text
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  • 2
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    Special report, exit slit mirrors for the Ebert spectrometer (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The use of a very long straight entrance slit in an Ebert grating spectrometer with two plane mirrors at the shorter exit slit to increase the energy density is described. This system has been employed in a far ultraviolet rocket spectrometer to provide higher sensitivity than has been achieved previously. The imaging properties and required slit and mirror adjustments are presented. Experimental results are included.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-128549 , T72-19300
    Format: application/pdf
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  • 3
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    Two-dimensional area scanning with image dissectors. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: An image dissector system for direct two-dimensional area scanning has been fabricated and is briefly described. Examples of application to direct scanning and digitization of photographic images are given.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Format: text
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  • 4
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    Tilting-filter measurements in dayglow rocket photometry. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A rocket-borne photometer containing two tilting-filter channels for the measurement of the forbidden OI 6300-A and 5577-A emission lines in the day airglow is described. The results of one flight substantiate the employment of tilting filters to determine accurate corrections for background continuum and provide reliable height profiles of emission intensity down to approximately 90 km. Discussions on the calibration of the instrument and its baffling against sunlight are also presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics; 11; Oct. 197
    Format: text
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  • 5
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    Rocket flight performance of a preprototype Apollo 17 UV spectrometer S-169 (1971)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The design, construction, testing, calibration, flight performance and flight data of an Ebert ultraviolet spectrometer are described which is an accurate representation of the conceptual design of the Apollo 17 UV spectrometer. The instrument was flown in an Aerobee 350 rocket from Wallops Island, Va., at 7:10 p.m. EDT on June 10, 1971 to an altitude of 328 km with a solar elevation angle of about 11 deg.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-115469
    Format: application/pdf
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  • 6
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    Mariner 6 and 7 ultraviolet spectrometers (1971)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Mariner 6 and 7 UV spectrometers, describing technical details, operating characteristics and calibration of planetary coronagraph and Ebert- Fastie monochromator used for Martian atmosphere analysis
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: ; ADEMIE DES SCIENCES
    Format: text
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  • 7
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    Nonreciprocal reflection-beam isolators for far-infrared use (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Magnetoplasma reflection-beam isolators for submillimeter-wave use are discussed in theory and experiment. The basic device uses the Kerr transverse magnetooptic effect (plane of polarization of the EM wave in the plane of incidence, which is perpendicular to a dc magnetic field) in InSb near room temperature. When the semiconductor slab is covered with a thin dielectric layer acting as a matching transformer, improved performance is predicted and observed at 337 microns, and very efficient isolator performance is predicted for 118 microns. Physical arguments are presented to explain the nonreciprocal phenomenon and lead to better device design.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 8
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    Analysis of the feedback system in a nonintrusive dynamic flowmeter for measuring Pogo oscillations (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Equations were developed which describe the closed loop feedback system operation of a proposed ultrasonic, dynamic, nonintrusive flowmeter whose design is based on a constant phase, voltage controlled frequency feedback concept. These equations are based on linear feedback system theory. The time constant of a low pass filter is taken into account. The equations show that the larger the open loop gain, the smaller the error due to fluctuations in the speed of sound and the smaller the effective time constant.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-X-71962
    Format: application/pdf
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  • 9
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    The Apollo 17 far ultraviolet spectrometer experiment (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The Apollo 17 command service module in lunar orbit will carry a far ultraviolet scanning spectrometer whose prime mission will be to measure the composition of the lunar atmosphere. Additional observations will include the spectral lunar albedo, the temporary atmosphere injected by the engines of the lunar exploration module, the solar system atmosphere, the galactic atmosphere and the spectra of astronomical sources, including the earth. A detailed description of the experimental equipment which observes the spectral range 1180 to 1680 A, the observing program and broad speculation about the possible results of the experiment, are presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-128835
    Format: application/pdf
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  • 10
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    Interface definition for the Far Ultraviolet Spectrometer Experiment S169 (1971)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A final contract for development, fabrication, test and flight of the ultraviolet spectrometer experiment on an Apollo space mission is reported. Two interface control documents were completed and signed off and three more were essentially completed. Supporting preliminary concepts formulation, design study and component investigation, specification and subcontract negotiation were accomplished.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-128550 , T72-19302
    Format: application/pdf
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