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Proceedings Paper

A digital liquid level sensor system based on parallel fiber sensor heads
Author(s): Bo Dong; Qida Zhao; Junfeng Lv; Tuan Guo; Lifang Xue; Shuhong Li; Hong Gu
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Paper Abstract

The design and development of a digital liquid level sensor system based on parallel fiber sensor heads are presented. A novel parallel fiber sensor heads based on side-polished common single-mode optical fiber is designed and applied. When the sensor head contacts with the liquid, we observe a sharp decrease in the output intensity. The digital liquid level sensor system based on 16 sensor points is operated by using an optical source with limited power. The measurement resolution and range of the liquid level sensor can be selected by adjusting the distance between the sensor heads. The advantages of this sensor system include low cost, high sensitivity, simple structure, excellent real-time character, high stability, and temperature-insensitiveness in normal temperature and pressure.

Paper Details

Date Published: 5 March 2007
PDF: 6 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65954I (5 March 2007); doi: 10.1117/12.726526
Show Author Affiliations
Bo Dong, Institute of Modern Optics, Nankai Univ. (China)
Qida Zhao, Institute of Modern Optics, Nankai Univ. (China)
Junfeng Lv, Institute of Modern Optics, Nankai Univ. (China)
Tuan Guo, Institute of Modern Optics, Nankai Univ. (China)
Lifang Xue, Institute of Modern Optics, Nankai Univ. (China)
Shuhong Li, Institute of Modern Optics, Nankai Univ. (China)
Hong Gu, Institute of Modern Optics, Nankai Univ. (China)


Published in SPIE Proceedings Vol. 6595:
Fundamental Problems of Optoelectronics and Microelectronics III

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