Acta Photonica Sinica, Volume. 53, Issue 6, 0606003(2024)
High Anti-noise Displacement Sensor Base on Fiber Bragg Grating Peak Counting
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Fig. 1. Designed structure of the proposed sensor and FBG reflected center wavelength shift curve diagram
Fig. 3. Repeatability analysis of wave peak jump at different speeds
Fig. 7. The response of the sensor to temperature when the displacement change rate is much faster than temperature change rate
Fig. 8. The response of the sensor to temperature when the displacement change rate is equal to or less than the temperature change
Table 1. The average displacement between adjacent wave peaks at different temperatures
View tableView in ArticleTable 1. The average displacement between adjacent wave peaks at different temperatures
T/℃ D/mm Step length/mm 30 1.995 0.099 35 2.013 0.101 40 1.989 0.099 45 2.007 0.100 50 2.011 0.101
Table 2. Performance comparison of the displacement sensors
View tableView in ArticleTable 2. Performance comparison of the displacement sensors
Type Sensing element Mathematic relation Resolution Anti-noise property Parameters Magnetostrictive［ 4 ］1（EM） Linearity 0.13 mm No Displacement Cantilever［ 11 ］1（FBG） Linearity 0.16 mm EMI Displacement Suspended ［ 14 ］1（FBG） Nearly linear 2.04 μm EMI Displacement Peak counting 1（FBG） Linear dispersion 0.1 mm Resistance to EM， temperature， demodulator error， fiber jitter Displacement velocity
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Haohao FAN, Qiang ZHAO, Dawei DU, Peng SUN, Wenfeng LIIU, Yanlong LI, Mingtao CHEN. High Anti-noise Displacement Sensor Base on Fiber Bragg Grating Peak Counting[J]. Acta Photonica Sinica, 2024, 53(6): 0606003
Paper Information
Category: Fiber Optics and Optical Communications
Received: Nov. 20, 2023
Accepted: Mar. 1, 2024
Published Online: Jul. 16, 2024
The Author Email: Qiang ZHAO (zhaoqiang@qlu.edu.cn)
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