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Proceedings Paper

Optical-fiber discrete liquid-level sensor for liquid nitrogen
Author(s): Sergei N. Khotiaintsev; Katya Romo-Medrano; Vladimir A. Svirid
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Paper Abstract

We present a prototype optical-fiber liquid-level sensor for measuring the static and dynamic level of liquid nitrogen in large cryogenic hydraulic systems. This version of sensor is intended for use for various tests of the cryogenic hydraulic systems at their design stage. The sensor employs a total of 140 highly sensitive optical-fiber point detectors of liquid in a form of vertical linear array. The liquid level measurement range is of 1.6 m, a vertical resolution is up to 5 mm. The optical detectors of liquid are multiplexed by means of matrix-type optical fiber network, which operates under robust level-tracking algorithm. A sensor of this type can be used for measuring the level of other cryogenic fluids.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623438
Show Author Affiliations
Sergei N. Khotiaintsev, National Autonomous Univ. of Mexico (Mexico)
Katya Romo-Medrano, National Autonomous Univ. of Mexico (Mexico)
Vladimir A. Svirid, National Autonomous Univ. of Mexico (Mexico)

Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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