Differential reflective fiber-optic angular displacement sensor

被引：23

作者：

Shan, Mingguang l ^{[1
]}

Min, Rui ^{[1
]}

Zhong, Zhi ^{[1
]}

Wang, Ying ^{[1
]}

Zhang, Yabin ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Informat & Commun Engn, Harbin 150001, Heilongjiang, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2015年 / 68卷

基金：

中国国家自然科学基金;

关键词：

Fiber-optic displacement sensor; Differential; Angular displacement;

D O I：

10.1016/j.optlastec.2014.10.016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using the characteristic that the distance apart between the emitting fiber and receiving fiber only shifts the angular-power curve, a differential reflective fiber-optic sensor for angular displacement measurement is presented through subtraction of two power signals from two receiving fibers placed on both sides of one emitting fiber. A theoretical model is established to characterize the performance of the differential reflective fiber-optic angular displacement sensor. The measurements made indicate that the general behavior of the experimental results agrees with that of the theoretical results, and the sensor can improve sensitivity by about 120%, resulting in the significant improvement of anti-interference capability, which will be more suitable for high accuracy bipolar absolute angular displacement measurement. Design guidelines are also suggested to achieve desired sensor performances. (C) 2014 Published by Elsevier Ltd.

引用

页码：124 / 128

页数：5

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