Simultaneous measurement of two strain components using 3/spl times/3 and 2/spl times/2 coupler-based passive demodulation of optical fiber sensors
作者： J.S. Sirkis , Yu-Lung Lo
DOI: 10.1109/50.350614
关键词:
摘要: This paper uses 3-3 and 2-2 coupler passive demodulation of combined Michelson polarimetric optical fiber sensors to simultaneously measure axial transverse strain components in a single sensor. The separated signals are used with isothermal phase models provide two independent equations describing the fiber. These enough information calculate strains surface mounted sensors. Experiments performed on vibrating cantilever beams show good agreement measurements made resistance gauges. >
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