Chinese Optics Letters, 2009, 7 (3): 03186, Published Online: Mar. 20, 2009
Localization theory of distributed fiber vibration sensor Download: 665次
振动传感器 定位 分布式光纤 子环 040.0040 Detectors 250.0250 Optoelectronics 060.2370 Fiber optics sensors 140.3510 Lasers, fiber
Abstract
Based on Sagnac interferometer, a simple distributed optical fiber sensing system with sub-loop is presented 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 simulated. The results agree well with the previous experiments.
Weimin Chen, Yuanyuan Xie, Peng Zhang, Lei Lin. Localization theory of distributed fiber vibration sensor[J]. Chinese Optics Letters, 2009, 7(3): 03186.