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  • INSTRUMENTATION AND PHOTOGRAPHY  (50)
  • 1980-1984  (50)
  • 1940-1944
  • 1980  (50)
  • 11
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    The Solar Backscatter Ultraviolet (SBUV) and Total Ozone Mapping Spectrometer (TOMS) experiment on Nimbus 7 (1980)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA, Washington Upper Atmosphere Res. Program; p 231
    Format: text
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    NASA TECHNICAL REPORTS
  • 12
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    Absolute line strengths in nu4, /C-12/H4 - A dual-beam diode laser spectrometer with sweep integration (1980)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: A tunable diode laser spectrometer with several unique features has been developed for use in the middle IR. The all-reflective optical system has a dual-beam configuration before the dispersive mode selector to eliminate transit-angle errors at the calibration etalon. By maintaining separated beams through the mode selector, beam combiner losses are avoided. Averaging successive sweeps of the current-modulated laser permits stable reproducible spectral integrations, eliminating etalon thermal errors and producing high photometric sensitivity. Line strengths have been measured using this instrument for eleven transitions in nu4 of (C-12)H4. These include R0 and R1 and nine P-branch transitions in the 1202-1263-per cm range. Techniques for measuring strengths with a diode laser are discussed.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics; 19; Aug. 15
    Format: text
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    NASA TECHNICAL REPORTS
  • 13
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    HOE/lensless matched spatial filter wavelength-scaling correlator (1980)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: A scaling correlator optical pattern recognition system is described in which a lensless matched spatial filter (with the second Fourier transform lens and the matched spatial filter recorded on the same plate) is used with a first Fourier transform lens that is also an holographic optical element. The matched spatial filter is recorded at one wavelength and correlation is obtained at a second wavelength. Experimental demonstration and output correlation SNR data are reported, together with a comparison of the system's noise level using conventional optics and holographic elements.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Optics Communications; 34; Sept
    Format: text
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    NASA TECHNICAL REPORTS
  • 14
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    Spacelab energetic ion mass spectrometer (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Basic design criteria are given for an ion mass spectrometer for use in studying magnetospheric ion populations. The proposed instrument is composed of an electrostatic analyzer followed by a magnetic spectrometer and simultaneously measures the energy per unit and mass per unit charge of the ion species. An electromagnet is used for momentum analysis to extend the operational energy range over a much wider domain than is possible with the permanent magnets used in previous flights. The energetic ion source regions, ion energization mechanisms, field line tracing, coordinated investigations, and orbit considerations are discussed and operations of the momentum analyzer and of the electrostatic energy analyzer are examined.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center Space Plasma Phys. Active Expt.; p 91-106
    Format: application/pdf
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  • 15
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    Magnetospheric multiprobes: Investigations and instrumentation (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The multiprobe scientific objectives are to: (1) determine the spatial structure of plasma phenomena such as the aurora, convection reversals, and ion troughs; (2) separate spatial and temporal variations in these phenomena; (3) determine field aligned current densities; (4) perform multiple point analysis of particle beams, wave fields, and plasma clouds that are injected into the ionosphere and magnetosphere by Spacelab active experiment facilities. Trade studies described include: instrument accommodations, power, attitude determination, electric field antennas, storage and ejection, thermal control, tracking communications, command and data management, payload and mission specialist support, functional objectives, and orbital analysis.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Marshall Space Flight Center Space Plasma Phys. Active Expt.; p 185-214
    Format: application/pdf
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  • 16
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    GSFC specification electronic data processing magnetic recording tape (1980)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The design requirements are given for magnetic oxide coated, electronic data processing tape, wound on reels. Magnetic recording tape types covered by this specification are intended for use on digital tape transports using the Non-Return-to-Zero-change-on-ones (NRZI) recording method for recording densities up to and including 800 characters per inch (cpi) and the Phase-Encoding (PE) recording method for a recording density of 1600 cpi.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TM-80599 , NAS 1.15:80599
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 17
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    A survey of light-scattering techniques used in the remote monitoring of atmospheric aerosols (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A critical survey of the literature on the use of light-scattering mechanisms in the remote monitoring of atmospheric aerosols, their geographical and spatial distribution, and temporal variations was undertaken to aid in the choice of future operational systems, both ground based and air or space borne. An evaluation, mainly qualitative and subjective, of various techniques and systems is carried out. No single system is found to be adequate for operational purposes. A combination of earth surface and space-borne systems based mainly on passive techniques involving solar radiation with active (lidar) systems to provide auxiliary or backup information is tentatively recommended.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Reviews of Geophysics and Space Physics; 18; May 1980
    Format: text
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    NASA TECHNICAL REPORTS
  • 18
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    Highly flexible pulse programmer for NMR applications (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A pulse generator for NMR application is described. Eighteen output channels are provided to allow use in single and double resonance experiments. Complex pulse sequences may be generated by loading instructions into a 256-word by 16-bit program memory. Features of the pulse generator include programmable time delays from 0.5 micros to 1000 s, branching and looping instructions, and the ability to be loaded and operated either manually or from a PDP-11/10 computer.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Review of Scientific Instruments; 51; Feb. 198
    Format: text
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  • 19
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    Electron spectroscopy for chemical analysis /ESCA/ study of aluminum-containing atmospheric particles (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Atmospheric Environment; 14; 1, 19; 1980
    Format: text
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    NASA TECHNICAL REPORTS
  • 20
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    Photoelectric scanning /6.65-m/ spectrometer for VUV cross-section measurements (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: A 6.65-m normal incidence vacuum spectrograph has been provided with a photoelectric scanner that is easily interchangeable with the original plate holder. The scanner consists essentially of a photoelectric detector and an exit slit that scans mechanically along the focal surface while the grating and entrance slit remain stationary. The design and construction of the 6.65-m scanning spectrometer, which operates in the 120-300-nm wavelength region, are discussed. The wavelength resolution of 0.001 nm obtained photoelectrically is better than that of any existing vacuum monochromator. The performance of the instrument is illustrated with vacuum ultraviolet scans of the (1, 5) band of fourth positive system of CO in emission, and the (14, 0) band of the Schumann-Runge system of O2 in absorption.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Applied Optics; 19; Jan. 1
    Format: text
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