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Proceedings Paper

Fiber Optic Sensors With Internal Referencing
Author(s): Grigory Adamovsky; Duncan J. Maitland IV
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Paper Abstract

The main problem with amplitude modulating type sensors is that any variation in the intensity of the optical signal which occurs throughout the sensing system is interpreted by the photodetector as resulting from the sensor itself and is reflected as an error in the sensed parameter. To account for these errors, a referencing technique with the signal and reference channels separated in the time domain over the same fiber link can be used. Selected sensing and signal processing techniques involving temporally separated signal and referencing channels are described. A transition from the time into the frequency domain is also discussed. Experimental data are presented.

Paper Details

Date Published: 16 January 1989
PDF: 5 pages
Proc. SPIE 0954, Optical Testing and Metrology II, (16 January 1989); doi: 10.1117/12.947645
Show Author Affiliations
Grigory Adamovsky, National Aeronautics and Space Administration (United States)
Duncan J. Maitland IV, Cleveland State University (United States)

Published in SPIE Proceedings Vol. 0954:
Optical Testing and Metrology II
Chander Prakash Grover, Editor(s)

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