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Fiber-optic photoelastic pressure sensor with fiber-loss compensationA new fiber-optic pressure sensor is described that has high immunity to the effects of fiber-loss variations. This device uses the photoelastic effect to modulate the proportion of the light from each of two input fibers that is coupled into each of two output fibers. This four-fiber link permits two detectors to be used to measure the sensor's responses to the light from each of two independently controlled sources. These four detector outputs are processed to yield a loss-compensated signal that is a stable and sensitive pressure indicator.
Document ID
19870047292
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Beheim, G.
(NASA Lewis Research Center Cleveland, OH, United States)
Anthan, D. J.
(Cleveland State University OH, United States)
Date Acquired
August 13, 2013
Publication Date
March 1, 1987
Publication Information
Publication: Optics Letters
Volume: 12
ISSN: 0146-9592
Subject Category
Instrumentation And Photography
Accession Number
87A34566
Distribution Limits
Public
Copyright
Other

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