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  • INSTRUMENTATION AND PHOTOGRAPHY  (180)
  • 1975-1979  (180)
  • 1
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    The correlation interferometer - A new instrument specifically designed for remote measurement of atmospheric trace species (1975)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: International Symposium on Remote Sensing of Environment; Oct 06, 1975 - Oct 10, 1975; Ann Arbor, MI
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    NASA TECHNICAL REPORTS
  • 2
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    Instrumentation, techniques and data reduction associated with airfoil testing programs at Wichita State University (1978)
    In:  CASI
    Details
    Publication Date: 2006-02-22
    Description: Two dimensional airfoil testing was conducted at the Wichita State University Beech Wind Tunnel for a number of years. The instrumentation developed and adapted during this period of testing for determination of flow fields along with traversing mechanisms for these probes are discussed. In addition, some of the techniques used to account for interference effects associated with the apparatus used for this two dimensional testing are presented. The application of a minicomputer to the data reduction and presentation is discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Langley Res. Center Advanced Technol. Airfoil Res., Vol. 1, Pt. 2; p 539-558
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    NASA TECHNICAL REPORTS
  • 3
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    Airborne bathymetric charting using pulsed blue-green lasers (1977)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: Laboratory and airborne experiments have proven the feasibility and demonstrated the techniques of an airborne pulsed laser system for rapidly mapping coastal water bathymetry. Water depths of 10 plus or minus 0.25 m were recorded in waters having an effective attenuation coefficient of 0.175 m. A 2-MW peak power Nd:YAG pulsed laser was flown at an altitude of 600 m. An advanced system, incorporating a mirror scanner, a high pulsed rate laser, and a good signal processor, could survey coastal zones at the rate of several square miles per hour.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics; 16; Jan. 197
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  • 4
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    The Helios A/B cosmic ray instrument /E 7/ (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: This paper describes the design and performance of a cosmic ray particle experiment for the Helios A/B space missions. This experiment had to be very lightweight, low power and electronically sophisticated in order to meet the spacecraft and scientific requirements, and very similar to those on the Pioneer 10 and 11 missions to Jupiter. Both sets of missions use several solid-state detector telescopes to measure protons from 100 KeV to 800 MeV per nucleon. Additionally, the Helios experiment includes a proportional counter to monitor the solar X-ray activity. The experiment has functioned quite well for 5 months in space, and large quantities of data are now being received.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Raumfahrtforschung; 19; Sept
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  • 5
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    CAMAC and NIM systems in the space program (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The CAMAC and NIM instrumentation systems were developed originally to serve the needs of nuclear research institutions in Europe and North America. CAMAC and NIM are currently considered in several studies at the systems level conducted by NASA and ESRO groups. NIM and CAMAC studies for applications related to the space shuttle are discussed along with the advantages provided by aspects of modularization and standardization, a use of NIM and CAMAC equipment in connection with a group of astrophysics experiments, and questions of cost effectiveness.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 6
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    Entopistic scintillators (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Trajectories of cosmic rays through a balloon-borne experiment will be determined by pulse height analyzing the signals from each of the two or more phototubes coupled to each scintillator. Thin or tapered scintillators produce sufficiently strong gradients of phototube signal with respect to scintillation position that position uncertainties of about 1 cm can be achieved over 1-sq-m areas. Calculations and some test results for entopistic, or position determining, scintillators are presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 7
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    The Hard X-ray experiment on the Astronomical Netherlands Satellite (1975)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: The Hard X-ray Experiment flown on the Astronomical Netherlands Satellite is described. The instrument consists of two parts. One is a large-area detector of about 60 sq cm in total area, sensitive in the energy range between 1.5 and 30 keV. Two counters comprise this detector, each collimated 10 min by 3 deg and offset in the narrow direction by 4 min. The other part is a Bragg-crystal assembly consisting of two PET crystals and counters aligned to search for the silicon emission lines near 2 keV. Instrument characteristics and orbital operations are described.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Astrophysical Journal; 201; Nov. 1
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  • 8
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    The charge injection device /CID/ as a stellar tracking sensor (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: A 128 x 128 element CID imager was operated in a simulated stellar trackling environment and evaluated for temporal and pattern noise and spectral response over a temperature range of -40 C to +25 C. The test devices were fabricated on long-lifetime bulk silicon material and utilized very thin upper-level polysilicon electrodes for enhanced spectral response. A standard microcomputer was used to generate all control signals and to collect and process performance data. The results of this program were used to predict the performance of a 400 x 400 CID array designed specifically for stellar-tracking.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Recent advances in TV sensors and systems; August 27, 28, 1979; San Diego, CA
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    NASA TECHNICAL REPORTS
  • 9
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    Space Telescope Digicon (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: The Digicon, chosen by NASA as the detector for the High Resolution Spectrograph (HRS) and the Faint Object Spectrograph (FOS) is a 512 parallel output channel vacuum photodetector. There are two HRS Digicons with spectral sensitivity ranges from 1050 A to 1800 A and 1150 A to 3000 A respectively, and two FOS Digicons, which have spectral ranges extending to 7000 A. The significant requirements for these devices are 0.01 counts per second background count rate per diode, state-of-the-art Digicon pulse height resolution (typical 15%) and a high degree of imaging precision and stability. The results of a manufacturing and test program to develop the Digicons coupled with extensive prior work has shown that these requirements can be met. The Digicon because of its inherent ruggedness is particularly well suited to space applications.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Recent advances in TV sensors and systems; August 27, 28, 1979; San Diego, CA
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  • 10
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    Infrared multidetector spectrometer for remote sensing of temperature profiles in the presence of clouds (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: An infrared multidetector spectrometer with channels in the 4.3-micron and 15-micron CO2 bands for the remote sensing of temperature profiles in the presence of clouds is described. Results obtained from aircraft flights in July 1975 over ocean sites under various conditions of cloudiness demonstrate the capability of the dual frequency technique to recover surface temperatures to an accuracy of + or - 0.5 K in the presence of up to 90% cloud cover.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics; 15; Sept
    Format: text
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