A method of temperature compensation for all optical fiber current sensors

XIONG Xianming; MIN Wang; QIN Zujun

doi:10.7510/jgjs.issn.1001-3806.2014.06.008

In order to solve the low measurement precision of all optical fiber current sensors induced by the bend and twist of sensor fiber and the change of external environment, a new method was proposed to realize the temperature compensation based on the longer axis slope of elliptic polarized light. It was demonstrated that elliptical polarized light long axis slope can response the change of the output light elasticity. The slope was calculated by TMS320F28335 and some algorithms. The sensor was modified by the elliptical polarized light long axis slope and some actual measurements was done. The experiment results show that the measurement system based on the revised method can meet the required precision of 0.2s in a single temperature change of 20℃~60℃.The result is helpful for the research of all optical fiber current sensors.

A method of temperature compensation for all optical fiber current sensors

1. College of Electronic Engineering and Automation, Guilin University of Electronic Science and Technology, Guilin 541004, China

Received Date: 2013-11-12

Accepted Date: 2014-01-19

Available Online: 2014-11-25

Abstract: In order to solve the low measurement precision of all optical fiber current sensors induced by the bend and twist of sensor fiber and the change of external environment, a new method was proposed to realize the temperature compensation based on the longer axis slope of elliptic polarized light. It was demonstrated that elliptical polarized light long axis slope can response the change of the output light elasticity. The slope was calculated by TMS320F28335 and some algorithms. The sensor was modified by the elliptical polarized light long axis slope and some actual measurements was done. The experiment results show that the measurement system based on the revised method can meet the required precision of 0.2s in a single temperature change of 20℃~60℃.The result is helpful for the research of all optical fiber current sensors.

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Reference (16)

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A method of temperature compensation for all optical fiber current sensors

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