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9 November 2010 A fiber laser accelerometer base on the double flexure strips structure
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Abstract
A fiber distributed feedback laser accelerometer base on the double flexure strips structure is designed and experimentally studied. In this paper, the vibration response of this double flexure strips structure is theoretically analyzed and simulated. The ripple response of the proposed sensor is less than 1dB from 50 Hz to 350 Hz. The experimental results show that the sensor has a higher sensitivity of 1591rad/g at 400Hz by introducing a 3x3 coupler combining with an unbalanced Mach-Zehnder fiber interferometer demodulator. Signal-to-Noise and cross-sensitivity coefficient of the sensor signal are about 43 dB and 10 dB respectively.
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Shengchun Liu, Liying Zhang, Xuefeng Zhu, Jintao Zhang, Xiangfei Chen, and Jianchen Cheng "A fiber laser accelerometer base on the double flexure strips structure", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78533V (9 November 2010); https://doi.org/10.1117/12.871782
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