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  • 1
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    Synchronizing A Stroboscope With A Video Camera (1993)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Circuit synchronizes flash of light from stroboscope with frame and field periods of video camera. Sync stripper sends vertical-synchronization signal to delay generator, which generates trigger signal. Flashlamp power supply accepts delayed trigger signal and sends pulse of power to flash lamp. Designed for use in making short-exposure images that "freeze" flow in wind tunnel. Also used for making longer-exposure images obtained by use of continuous intense illumination.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: LAR-14855 , Laser Tech. Brief.; 1; 1; P. 86
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Improved Grid-Array Millimeter-Wave Amplifier (1993)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Improved grid-array amplifiers operating at millimeter and submillimeter wavelengths developed for use in communications and radar. Feedback suppressed by making input polarizations orthogonal to output polarizations. Amplifier made to oscillate by introducing some feedback. Several grid-array amplifiers concatenated to form high-gain beam-amplifying unit.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: NPO-18548 , NASA Tech Briefs (ISSN 0145-319X); 17; 1; P. 44
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
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    Tuners For Coplanar-Strip Transmission Lines (1993)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Sliding radio-frequency short circuits easily adjusted for optimum impedance. Tuning elements developed for use in planar integrated circuits operating at frequencies from about 10 to more than 1,000 GHz. Purpose of such adjustment to adjust impedance presented to circuit connected to nonshorted end of transmission line and thereby optimizes performance of circuit. Mixers, oscillators, amplifiers, couplers, and phase shifters among circuits improved by incorporating tuners of this type.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: NPO-18359 , NASA Tech Briefs (ISSN 0145-319X); 17; 2; P. 33
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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