Measurement uncertainty of a fibre-optic displacement sensor

被引：7
|
作者：
Nevshupa, Roman [1 ]
Conte, Marcello [2 ]
van Rijn, Camille [3 ]
机构：
[1] IETCC CSIC, Madrid 28033, Spain
[2] IK4 Tekniker, Eibar 20600, Spain
[3] Noon Energy SL, Durango 48200, Spain
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2013年 / 24卷 / 03期
关键词：
fibre-optic displacement sensor; bundle configuration; measurement uncertainty;
D O I：
10.1088/0957-0233/24/3/035104
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The measurement uncertainty and linearity of a bundle fibre-optic displacement sensor were studied on a wide range of displacements using experimental and simulation approaches. The theoretical He-Cuomo distribution functions of light intensity yielded the simulated modulation characteristic that best fitted the experimental data in the range of dimensionless distances to the target surface from 0 to 50 but diverged beyond. The coefficient of variation of the output signal of the sensor varied non-monotonically with the distance to the target surface. This variation is suggested to stem from small randomly distributed imperfections on the mirror surface.
引用
收藏
页数：8
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