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Proceedings Paper

Miniature vibration sensor based on a compact microfiber probe
Author(s): Shijie Tan; Yanpeng Li; Tao Liu; Junjie Wang; Zhijun Yan; Deming Liu; Qizhen Sun
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Paper Abstract

A miniature vibration sensor based on a compact microfiber probe is proposed and experimentally demonstrated. The microfiber probe is simply fabricated by snapping a multimode biconical microfiber in the fused tapering process. Vibration causes periodic bending and axial extension of microfiber probe, resulting in the change of phase difference between fundamental mode and high-order modes. The vibration signal can be obtained by demodulated the reflected light signal with fast Fourier transform. The experimental result shows that the vibration sensor not only can exactly measure the frequency of the applied sinusoidal vibration signal, but also has a wide frequency measurement range of 20 Hz-2 kHz. The advantages of compact size and high accuracy make the vibration sensor have great application prospects.

Paper Details

Date Published: 12 March 2019
PDF: 5 pages
Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 110234E (12 March 2019); doi: 10.1117/12.2521806
Show Author Affiliations
Shijie Tan, Huazhong Univ. of Science and Technology (China)
Yanpeng Li, Huazhong Univ. of Science and Technology (China)
Tao Liu, Huazhong Univ. of Science and Technology (China)
Junjie Wang, Huazhong Univ. of Science and Technology (China)
Zhijun Yan, Huazhong Univ. of Science and Technology (China)
Deming Liu, Huazhong Univ. of Science and Technology (China)
Qizhen Sun, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 11023:
Fifth Symposium on Novel Optoelectronic Detection Technology and Application
Qifeng Yu; Wei Huang; You He, Editor(s)

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