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Quantitative measurement of in-plane acoustic field components using surface-mounted fiber sensorsExtrinsic Fabry-Perot interferometric sensors have been used to obtain calibrated, quantitative measurements of the in-plane displacement components associated with the propagation of ultrasonic elastic stress waves on the surfaces of solids. The frequency response of the sensor is determined by the internal spacing between the two reflecting fiber endface surfaces which form the Fabry-Perot cavity, a distance which is easily controlled during fabrication. With knowledge of the material properties of the solid, the out-of-plane displacement component of the wave may also be determined, giving full field data.
Document ID
19930053345
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Claus, Richard O.
(NASA Langley Research Center Hampton, VA, United States)
Dhawan, Rajat R.
(NASA Langley Research Center Hampton, VA, United States)
Gunther, Michael F.
(NASA Langley Research Center Hampton, VA, United States)
Murphy, Kent A.
(Virginia Polytechnic Inst. and State Univ. Blacksburg, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: In: Fiber optic smart structures and skins V; Proceedings of the Meeting, Boston, MA, Sept. 8, 9, 1992 (A93-37326 14-35)
Publisher: Society of Photo-Optical Instrumentation Engineers
Subject Category
Instrumentation And Photography
Accession Number
93A37342
Distribution Limits
Public
Copyright
Other

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