A liquid level sensor based on fiber optic array and magnetic coupling

Wei He; Xuan Yu; Chenggang Wang; Cui Zhang; Bo Feng; Minghong Yang

doi:10.1117/12.973660

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17 October 2012 A liquid level sensor based on fiber optic array and magnetic coupling

Wei He, Xuan Yu, Chenggang Wang, Cui Zhang, Bo Feng, Minghong Yang

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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842130 (2012) https://doi.org/10.1117/12.973660
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

A liquid level sensor based on fiber optic array and magnetic coupling is proposed and demonstrated. Besides the inherent advantages of fiber optic sensor, this sensor has a feature of digital sensing signal since the accurate value of light intensity is not needed, so the instability of light source, connecting and bending losses of optical fiber don't affect the measurement results. Owing to its special structure and package, the sensor is insensitive to the fluctuation of liquid level and could be used for measuring the level of almost all liquids regardless of their corrosivity and transparency.

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Wei He, Xuan Yu, Chenggang Wang, Cui Zhang, Bo Feng, and Minghong Yang "A liquid level sensor based on fiber optic array and magnetic coupling", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842130 (17 October 2012); https://doi.org/10.1117/12.973660

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