An Optical Fiber Liquid Level Sensor Based on Side Coupling Induction Technology
An optical fiber liquid level sensor based on two twisted polymer optical fibers twining around a racetrack column is demonstrated in this study. The side-coupling power of the passive fiber is modulated by the refractive index (RI) of the environment medium and decreases while the liquid level incr...
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doaj-c3cc19164f4f44f787446ff9dbf9cc3d2020-11-24T21:32:02ZengHindawi LimitedJournal of Sensors1687-725X1687-72682018-01-01201810.1155/2018/29538072953807An Optical Fiber Liquid Level Sensor Based on Side Coupling Induction TechnologyYanjun Zhang0Yingzi Zhang1Yulong Hou2Liang Zhang3Yanjun Hu4Xiaolong Gao5Huixin Zhang6Wenyi Liu7Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaAn optical fiber liquid level sensor based on two twisted polymer optical fibers twining around a racetrack column is demonstrated in this study. The side-coupling power of the passive fiber is modulated by the refractive index (RI) of the environment medium and decreases while the liquid level increases. The variation patterns of the side-coupling power in the bent section and the straight section form a step attenuation, which can improve the measurement range with a superior sensitivity and distinguish liquids with different RIs. Furthermore, the cost-effective sensor also shows good reversibility and low temperature-dependent properties.http://dx.doi.org/10.1155/2018/2953807 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yanjun Zhang Yingzi Zhang Yulong Hou Liang Zhang Yanjun Hu Xiaolong Gao Huixin Zhang Wenyi Liu |
spellingShingle |
Yanjun Zhang Yingzi Zhang Yulong Hou Liang Zhang Yanjun Hu Xiaolong Gao Huixin Zhang Wenyi Liu An Optical Fiber Liquid Level Sensor Based on Side Coupling Induction Technology Journal of Sensors |
author_facet |
Yanjun Zhang Yingzi Zhang Yulong Hou Liang Zhang Yanjun Hu Xiaolong Gao Huixin Zhang Wenyi Liu |
author_sort |
Yanjun Zhang |
title |
An Optical Fiber Liquid Level Sensor Based on Side Coupling Induction Technology |
title_short |
An Optical Fiber Liquid Level Sensor Based on Side Coupling Induction Technology |
title_full |
An Optical Fiber Liquid Level Sensor Based on Side Coupling Induction Technology |
title_fullStr |
An Optical Fiber Liquid Level Sensor Based on Side Coupling Induction Technology |
title_full_unstemmed |
An Optical Fiber Liquid Level Sensor Based on Side Coupling Induction Technology |
title_sort |
optical fiber liquid level sensor based on side coupling induction technology |
publisher |
Hindawi Limited |
series |
Journal of Sensors |
issn |
1687-725X 1687-7268 |
publishDate |
2018-01-01 |
description |
An optical fiber liquid level sensor based on two twisted polymer optical fibers twining around a racetrack column is demonstrated in this study. The side-coupling power of the passive fiber is modulated by the refractive index (RI) of the environment medium and decreases while the liquid level increases. The variation patterns of the side-coupling power in the bent section and the straight section form a step attenuation, which can improve the measurement range with a superior sensitivity and distinguish liquids with different RIs. Furthermore, the cost-effective sensor also shows good reversibility and low temperature-dependent properties. |
url |
http://dx.doi.org/10.1155/2018/2953807 |
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