Localization theory of distributed fiber vibration sensor |
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| Authors: | Weimin Chen Yuanyuan Xie Peng Zhang Lei Lin |
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| Affiliation: | [1]The Key Laboratory for Optoelectronie Technology gz Systems, Ministry of Education of China, Chongqing University, Chongqing 400044 [2]Computer Science and Information Engineering College, Chongqing Technology and Business University, Chongqing 400067 |
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| Abstract: | Based on Sagnac interferometer, a simple distributed optical fiber sensing system with sub-loop is pre-sented to monitor the vibration applied on the sensing fiber. By introducing a sub-loop, three output beams of interference with different delay time are gotten. Location of the vibration is analyzed through mathematical-physical equations. The vibration frequency, amplitude, and location are theoretically sim-ulated. The results agree well with the previous experiments. |
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