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Proceedings Paper

Fiber optic interferometric strain sensing on composites using an active homodyne sawtooth fringe counting technique
Author(s): Frank Schiffer; Norbert Fuerstenau; Walter Schmidt
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Paper Abstract

A new active homodyne sawtooth fringe counting technique is described for eliminating the directional ambiguity in incremental readout of interferometric strain gauges. Results of quantitative strain measurements using unbalanced Michelson and capillary based instrinsic Fabry-Perot sensors agree reasonably well with the readout of a resistive strain gauge as well as with the theoretically predicted sensitivity.

Paper Details

Date Published: 21 September 1995
PDF: 11 pages
Proc. SPIE 2509, Smart Structures: Optical Instrumentation and Sensing Systems, (21 September 1995); doi: 10.1117/12.221116
Show Author Affiliations
Frank Schiffer, DLR (Germany)
Norbert Fuerstenau, DLR (Germany)
Walter Schmidt, DLR (Germany)


Published in SPIE Proceedings Vol. 2509:
Smart Structures: Optical Instrumentation and Sensing Systems
Deepak G. Uttamchandani, Editor(s)

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