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Holographic system for nondestructive testingA description is given of a holographic system for nondestructive testing. The system is comprised of a mirror which illuminates the test object surface; the mirror is positionable to direct illumination on an object at varying angles with respect to a line normal to the surface of the object. In this manner holograms may be produced with varying degrees of sensitivity enabling optimum observation of dimensions of deformation of an object occurring between test exposures.
Document ID
19750017052
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Kurtz, R. L. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 3, 2013
Publication Date
May 13, 1975
Subject Category
Instrumentation And Photography
Accession Number
75N25124
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-MFS-21704-1|US-PATENT-3,883,215
Patent Application
US-PATENT-APPL-SN-386793

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