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马赫-曾德尔干涉型光纤传感器测量动态应变。

Dynamic strain measured by Mach-Zehnder interferometric optical fiber sensors.

机构信息

Department of Mechanical Engineering, Yuan Ze University, Chung-Li 320, Taiwan.

出版信息

Sensors (Basel). 2012;12(3):3314-26. doi: 10.3390/s120303314. Epub 2012 Mar 8.

DOI:10.3390/s120303314
PMID:22737010
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3376560/
Abstract

Optical fibers possess many advantages such as small size, light weight and immunity to electro-magnetic interference that meet the sensing requirements to a large extent. In this investigation, a Mach-Zehnder interferometric optical fiber sensor is used to measure the dynamic strain of a vibrating cantilever beam. A 3 × 3 coupler is employed to demodulate the phase shift of the Mach-Zehnder interferometer. The dynamic strain of a cantilever beam subjected to base excitation is determined by the optical fiber sensor. The experimental results are validated with the strain gauge.

摘要

光纤具有尺寸小、重量轻和抗电磁干扰等优点，在很大程度上满足了传感的要求。在这项研究中，采用马赫-曾德尔干涉型光纤传感器测量振动悬臂梁的动态应变。采用 3×3 耦合器对马赫-曾德尔干涉仪的相移进行解调。通过光纤传感器确定了受基座激励的悬臂梁的动态应变。实验结果与应变计进行了验证。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/c345cb03e4c0/sensors-12-03314f12.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/9924b0ced293/sensors-12-03314f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/673602461d61/sensors-12-03314f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/476fdc47dd6d/sensors-12-03314f7.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/a4a25c9232b0/sensors-12-03314f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/223736e41072/sensors-12-03314f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/c345cb03e4c0/sensors-12-03314f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/54e2bfd435e1/sensors-12-03314f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/9f0656f60b88/sensors-12-03314f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/da0427c9098e/sensors-12-03314f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/45f2c39baa33/sensors-12-03314f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/9924b0ced293/sensors-12-03314f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/673602461d61/sensors-12-03314f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/476fdc47dd6d/sensors-12-03314f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/cf2eca1bfa34/sensors-12-03314f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/3295b7edc534/sensors-12-03314f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/a4a25c9232b0/sensors-12-03314f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/223736e41072/sensors-12-03314f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f51/3376560/c345cb03e4c0/sensors-12-03314f12.jpg

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