Optical-fiber discrete liquid-level sensor for liquid nitrogen

Sergei N. Khotiaintsev; Katya Romo-Medrano; Vladimir A. Svirid

doi:10.1117/12.623438

23 May 2005 Optical-fiber discrete liquid-level sensor for liquid nitrogen

Sergei N. Khotiaintsev, Katya Romo-Medrano, Vladimir A. Svirid

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623438
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

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.

Citation Download Citation

Sergei N. Khotiaintsev, Katya Romo-Medrano, and Vladimir A. Svirid "Optical-fiber discrete liquid-level sensor for liquid nitrogen", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623438

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