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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Holograms of the aerial image of a lens.
Wave front reconstruction imaging technique for hologram production of aerial image of lens
The pseudoscopic inversion of holograms.
Simple physical argument to explain effect of pseudoscopic inversion of holograms
Apparent rotation of hologram virtual images.
Apparent rotation of spectral lines as viewed through holograms, obtaining equations for angular change of image position
Focusing hologram diffraction grating.
Interferometer producing focusing hologram diffraction grating, noting photograph of spectrum
Film plane holograms without external source reference beams.
Three-dimensional film plane hologram recording of object without external source reference beams
Simultaneous exposure-development of holograms on 649-F film.
Holographic exposure times controlled by direct viewing of reconstructed image during exposure
A posteriori image-correcting ''deconvolution'' by holographic Fourier-transform division.
Corrective image deconvolution of smearing caused by extended instrument functions in optical imaging possible by holographic Fourier transform division
Moire effects in computer-generated holograms.
Moire patterns generated on computer printout when superimposing sampling grid over two-dimensional function to be plotted
Proceedings of the Aero-Optics Symposium on Electromagnetic Wave Propagation from Aircraft
Data are presented from a series of wind-tunnel and flight experiments concerning natural and induced turbulence around an airplane, and the effects on propagation characteristics of an emitter mounted in the airplane. Some of the papers are concerned with phase distortion of the propagating radiation, and others deal with mechanical jitter of the optical elements when exposed to open-cavity turbulence. The results include both aerodynamic and optical measurements and a consideration of the relationship between the two. Primary emphasis is on the dynamic disturbances, but theoretical and experimental evaluations of steady-state distortions are also presented.
Advanced Non-Intrusive Instrumentation for Propulsion Engines
Changes in engine technology such as higher temperatures, higher tip speeds, new metal/composite/ceramic materials together with radical changes in design philosophy will require amongst other prerequisites the ability to measure and to monitor key internal gas and structural characteristics. The symposium papers presented non-intrusive measurement and analysis technologies in the following categories: Laser Point Measurements (11); Absorption and Infrared Techniques (4); Paints - Surface Sensors (6); Laser Induced Fluorescence (6); Mechanical (7); Films (5); Laser Planar Measurement (9); and a Keynote Address.
Speckle holographic imaging of pre-main sequence visual binaries in Taurus
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A Methodology for the Open Loop Calibration of A Deformable Flat Plate on a 70-Meter Antenna
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A Methodology for the Open Loop Calibration of a Deformable Flat Plate on a 70-Meter Antenna
This paper describes an experimental study of a deformable flat plate on the NASA-JPL, 70-meter antenna (DSS-14) at Ka-Band.