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14 February 2005 Novel tilt measurement method based on self-demodulated FBG sensor and pendulum clinometer
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Abstract
A novel tilt measurement method is proposed based on self-demodulated fiber Bragg grating (FBG) sensor system, which consists of a couple of matched FBGs and a cantilever-based pendulum clinometer. With a cantilever structure, the tilt angle is measured by means of a differential form of Bragg wavelength shifting, with which the cross-sensitivity of temperature is eliminated simultaneously. It has been proved by both simulations and preliminary experimental results that a high resolution better than 0.0022 degree can be achieved in the range of +/-10 degrees.
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Jian Yang, Yong Zhao, Shi-Yuan Yang, Yun Xu, and Yan Zhao "Novel tilt measurement method based on self-demodulated FBG sensor and pendulum clinometer", Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); https://doi.org/10.1117/12.571711
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