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Proceedings Paper

Tapered-fibers liquid dropping-speed monitoring sensors
Author(s): Cong Zhang; Weimin Sun; Chengkai Guo; Xiaoli Wang
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Paper Abstract

A new kind of optical liquid drop detecting sensors is presented, using a tapered fiber as the sensing head. The dripping speed of the liquid drop influences the intensity of the reflected and transmitting light inside the tapered fiber, because the reflected or transmitting light intensity depends on the refractive index of the material outside the tapered fiber. The advantages of this type of sensors are experimentally demonstrated such as high sensitivity, reliability and immunity from interferes. The detecting veracity is 100% when dropping speed below 6 drops per second in the experiment. The change of liquid dropping-speed can be monitored.

Paper Details

Date Published: 5 March 2007
PDF: 6 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65953B (5 March 2007); doi: 10.1117/12.725904
Show Author Affiliations
Cong Zhang, Harbin Engineering Univ. (China)
Weimin Sun, Harbin Engineering Univ. (China)
Chengkai Guo, Harbin Engineering Univ. (China)
Xiaoli Wang, Harbin Engineering Univ. (China)


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

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