Research of a reflective fiber-optic displacement sensor with intensity compensation

被引：4
|
作者：
Lu, HB [1 ]
Xu, T [1 ]
Yang, HY [1 ]
Chen, ZF [1 ]
机构：
[1] Natl Univ Def Technol, Changsha 410073, Peoples R China
来源：
PROCESS CONTROL AND INSPECTION FOR INDUSTRY | 2000年 / 4222卷
关键词：
fiber-optic sensor; compensation; modulating characteristic; displacement measurement;
D O I：
10.1117/12.403900
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A reflective displacement sensor utilizing three fibers, one transmitting and two receiving with different core diameters, is described in this paper. On the basis of optical field distribution of multimode fiber, the intensity compensation mechanism of this sensor is analyzed in great detail, at the same time the displacement modulating functions and corresponding simulating carves are presented. Results show that this sensor can effectively compensates for variations in the source intensity, for losses in the optical fibers, and for variations in the reflectivity of the reflector surface.
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页码：313 / 317
页数：5
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