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Proceedings Paper

Fiber optic liquid level sensor using multimode fused coupler
Author(s): Sengupta D.; Sai Shankar M.; Srimannarayana K.; Sai Prasad R. L. N.
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Paper Abstract

An intensity based fiber optic liquid level sensor for continuous measurement is described. The sensing principle is based on intensity of reflected light which is disturbed by the change in proximity of the fiber probe and the reflector. A Mechanical CAM is used in the sensing arrangement. It converts the rotatory motion into a linear displacement. As the liquid level raises, rotation of the CAM takes place and the CAM follower connected to it moves linearly. A reflector which is attached to the end of the CAM follower reflect the incident light. As the displacement of reflector occur the intensity of reflected light also changes and is a measure of change in liquid level. The prototype designed sensor can sense liquid level upto 17cm. The proposed sensor can find potential applications in transportation and process industries.

Paper Details

Date Published: 22 June 2013
PDF: 6 pages
Proc. SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 87692A (22 June 2013); doi: 10.1117/12.2021239
Show Author Affiliations
Sengupta D., National Institute of Technology, Warangal (India)
Vidya Jyothi Institute of Technology (India)
Sai Shankar M., National Institute of Technology, Warangal (India)
Srimannarayana K., National Institute of Technology, Warangal (India)
Sai Prasad R. L. N., National Institute of Technology, Warangal (India)


Published in SPIE Proceedings Vol. 8769:
International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013)
Chenggen Quan; Kemao Qian; Anand Asundi, Editor(s)

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