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A comparative study and experimental observations of optical fiber sagnac interferometric based strain sensor by using different fibers

机译：基于光纤sagnac干涉测量应变传感器的比较研究和实验观察

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摘要

Designing of strain monitoring system is a vibrant topic for the researchers. Strain monitoring systems are required in various fields such as mechanics, aeronautics, metallurgy and health monitoring of complex structures etc. Researchers designed different strain monitoring systems based on requirements. In this paper, we have reported a comparative study of Optical Fiber Sagnac Interferometer (OFSI) based strain sensors using three different types of fiber, i. e Polarization Maintaining Fiber (PMF), Standard Photonic Crystal Fiber (PCF) and High Birefringence Photonic Crystal Fiber (Hi-Bi PCF). The transmission spectrums of the sensors were recorded using Optical Spectrum Analyzer (OSA). We have experimentally analyzed the response and sensitivity of the sensors at different applied strains. The experimental results show that the optical interferometric strain sensor using PMF is having highest sensitivity in comparison to other sensors.
机译：应变监测系统的设计是研究人员一个充满活力的话题。在机械，航空，冶金和复杂结构的健康监测等各个领域都需要应变监测系统。研究人员根据需求设计了不同的应变监测系统。在本文中，我们报告了使用三种不同类型的光纤，即基于光纤Sagnac干涉仪（OFSI）的应变传感器的比较研究。 e保偏光纤（PMF），标准光子晶体光纤（PCF）和高双折射光子晶体光纤（Hi-Bi PCF）。使用光谱分析仪（OSA）记录传感器的透射光谱。我们已经通过实验分析了传感器在不同应用应变下的响应和灵敏度。实验结果表明，与其他传感器相比，使用PMF的光学干涉式应变传感器具有最高的灵敏度。

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