Simultaneous measurement of temperature and strain based on fiber loop mirror combined with fiber Bragg grating
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS(2017)
摘要
Simultaneous measurement of temperature and strain without cross-sensitivity using a polarization maintaining fiber (PMF) in a fiber loop mirror (FLM) and a fiber Bragg grating (FBG) is presented. The sensing head is formed by inserting a FBG to the PMF-FLM. This sensor can not only be multi-parameter identification simultaneously, but also eliminate cross-sensitivity. Experimental results show that the proposed sensor has the temperature sensitivity of-1.5096 nm/degrees C and strain sensitivity of 0.01042 nm/mu epsilon, respectively
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关键词
Temperature Sensor,Strain Sensor,Multi-Parameter Measurement,Fiber Loop Mirror,Fiber Bragg Grating
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