Low-cost, non-contact displacement sensor based on plastic fiber bundle

被引：0
|
作者：
Tosi, D. [1 ]
Neri, A. [1 ]
Perrone, G. [1 ]
Vallan, A. [1 ]
机构：
[1] Politecn Torino, Dept Elect, I-10129 Turin, TO, Italy
来源：
21ST INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS | 2011年 / 7753卷
关键词：
Plastic optical fiber (POF); fiber optic sensors (FOS); displacement sensor;
D O I：
10.1117/12.884987
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The article presents the state-of-the-art realization of a low-cost, non-contact displacement sensor based on plastic optical fibers. The sensor head makes use of 7 fibers, arranged in a bundle configuration, to detect small displacements on a moving target; the sensing systems can compensate variations to target reflectivity. Two advanced features have been implemented: an optimization of the fiber bundle enables to improve the accuracy up to 2.7 times, and a Monte Carlo simulation provides a detailed description of the system and enables surface mapping. Experimental result show an accuracy of 7.5 mu m on a range of 2.5 mm with reflectivity compensation, and of 2.4 mu m on a range of 5 mm without compensation.
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页数：4
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