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  • 1
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    Unknown
    Planar oscillatory stirring apparatus (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The present invention is directed to an apparatus for stirring materials using planar orthogonal axes oscillations. The apparatus has a movable slide plate sandwiched between two fixed parallel support plates. Pressurized air is supplied to the movable slide plate which employs a tri-arm air bearing vent structure which allows the slide plate to float and to translate between the parallel support plates. The container having a material to be stirred is secured to the upper surface of the slide plate through an aperture in the upper support plate. A motor driven eccentric shaft loosely extends into a center hole bearing of the slide plate to cause the horizontal oscillations. Novelty lies in the combination of elements which exploits the discovery that low frequency, orthogonal oscillations applied horizontally to a Bridgman crucible provides a very rigorous stirring action, comparable with and more effective by an order of magnitude than the accelerated crucible rotation technique.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NAS 1.71:MFS-26002-1-CU
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Viking lander camera radiometry calibration report, volume 2 (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The requirements the performance validation, and interfaces for the RADCAM program, to convert Viking lander camera image data to radiometric units were established. A proposed algorithm is described, and an appendix summarizing the planned reduction of camera test data was included.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: JPL-PUB-77-62-VOL-2
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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