Plastic optical fiber displacement sensor based on dual cycling bending

In this study, a high sensitivity and easy fabricated plastic optical fiber (POF) displacement sensor is proposed. A POF specimen subjected to dual cyclic bending is used to improve the sensitivity of the POF displacement sensor. The effects of interval between rollers, relative displacement and num...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2010-11, Vol.10 (11), p.10198-10210
Main Authors: Kuang, Jao-Hwa, Chen, Pao-Chuan, Chen, Yung-Chuan
Format: Article
Language:English
Subjects:
cycling bending
displacement fiber sensor
Equipment Design
Fiber Optic Technology - instrumentation
Fiber Optic Technology - methods
Fiber optics
Light emitting diodes
Optical Fibers
plastic optical fiber
Plastics
Sensors
Stress concentration
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Summary:In this study, a high sensitivity and easy fabricated plastic optical fiber (POF) displacement sensor is proposed. A POF specimen subjected to dual cyclic bending is used to improve the sensitivity of the POF displacement sensor. The effects of interval between rollers, relative displacement and number of rollers on the sensitivity of the displacement sensor are analyzed both experimentally and numerically. A good agreement between the experimental measurements and numerical calculations is obtained. The results show that the interval between rollers affects sensitivity most significantly than the other design parameters. Based on the experimental data, a linear equation is derived to estimate the relationship between the power loss and the relative displacement. The difference between the estimated results and the experimental results is found to be less than 8%. The results also show that the proposed POF displacement sensor based on dual cyclic bending can be used to detect displacement accurately.
ISSN:1424-8220
1424-8220
DOI:10.3390/s101110198