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Proceedings Paper

Parallel multiplexing and demodulation of fiber optic strain gauges
Author(s): T. G. Beck Mason; Tomas Valis; W. Dayle Hogg
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Paper Abstract

The use of fiber-optic strain gauges in realistic smart structures applications is contingent on the availability of a number of sensors embedded or adhered to the structure at a cost comparable to that of existing on-board diagnostic sensor systems. The most effective way of implementing such a sensor topology is to share the most expensive components of the system among many sensors. A cost-intensive component in a fiber-optic strain gauge system is the laser diode and its associated drive electronics. Parallel multiplexing allows many gauges to share a common source. Design and performance issues related to parallel multiplexed fiber Fabry-Perot strain gauge systems are discussed. A commercial four-channel parallel multiplexed strain gauge system is described.

Paper Details

Date Published: 12 July 1993
PDF: 13 pages
Proc. SPIE 1918, Smart Structures and Materials 1993: Smart Sensing, Processing, and Instrumentation, (12 July 1993); doi: 10.1117/12.147974
Show Author Affiliations
T. G. Beck Mason, FiberMetrics Corp. (Canada)
Tomas Valis, FiberMetrics Corp. (Canada)
W. Dayle Hogg, FiberMetrics Corp. (Canada)

Published in SPIE Proceedings Vol. 1918:
Smart Structures and Materials 1993: Smart Sensing, Processing, and Instrumentation
Richard O. Claus, Editor(s)

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