A dual plate thermoplastic recording device for holographic interferometryThe development of a dual plate holographic interferometer using thermoplastic recording devices is described. The operational characteristics of the thermoplastic devices are investigated and optimized for fringe contrast and signal-to-noise ratio. The dual plate device was demonstrated in a transonic wind tunnel at NASA Ames Research Center. The interferograms derived from the thermoplastic device are compared with those derived from conventional photographic emulsions. The fringe contrast achieved with the optimized thermoplastic device is equivalent to the contrast achieved with conventional techniques.
Document ID
19880025500
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Umstatter, Holly L. (Spectron Development Labs., Inc. Costa Mesa, CA, United States)
Craig, James E. (Spectron Development Labs., Inc. Costa Mesa, CA, United States)
Trolinger, James D. (Spectron Development Laboratories, Inc. Costa Mesa, CA, United States)
Lee, George (NASA Ames Research Center Moffett Field, CA, United States)