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Simultaneous measurement of temperature and strain based on fiber loop mirror combined with fiber Bragg grating

RIQING LV1, TIANMIN ZHOU1, LEBIN ZHANG1, HUIJIE PENG1, YANAN ZHANG1,2,*

Affiliation

  1. College of Information Science and Engineering, Northeastern University, Shenyang 110819, China
  2. State Key Laboratory of Synthetical Automation for Process Industries, Shenyang, 110819, China

Abstract

Simultaneous measurement of temperature and strain without cross sensitivity using a polarization maintaining fiber (PMF) in a fi ber 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/°C and strain sensitivity of 0.01042 nm/ με, respectively..

Keywords

Temperature, Sensor, Strain Sensor, Multi Parameter Measurement, Fiber Loop Mirror, Fiber Bragg Grating.

Citation

RIQING LV, TIANMIN ZHOU, LEBIN ZHANG, HUIJIE PENG, YANAN ZHANG, Simultaneous measurement of temperature and strain based on fiber loop mirror combined with fiber Bragg grating, Optoelectronics and Advanced Materials - Rapid Communications, 11, 11-12, November-December 2017, pp.633-636 (2017).

Submitted at: April 1, 2017

Accepted at: Nov. 28, 2017