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1 May 1994 Simultaneous measurement of two strain components using passive demodulation
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Abstract
This paper uses 3 X 3 coupler passive demodulation of combined Michelson and polarimetric optical fiber sensors to simultaneously measure axial and transverse strain components in a single optical fiber bonded to a vibrating cantilever beam. The separated Michelson and polarimetric signals are used with isothermal Michelson and polarimetric phase strain-models to provide two independent equations describing the strain in the fiber. These equations provide enough information to calculate axial and transverse strains in surface mounted sensors.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yu-Lung Lo and James S. Sirkis "Simultaneous measurement of two strain components using passive demodulation", Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); https://doi.org/10.1117/12.173988
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