Quasi-distributed liquid level measurement with adaptable optical fiber transducers

M. Lomer; A. Quintela; M. A. Quintela; A. Cobo; J. M. López-Higuera

doi:10.1117/12.738385

2 July 2007 Quasi-distributed liquid level measurement with adaptable optical fiber transducers

M. Lomer, A. Quintela, M. A. Quintela, A. Cobo, J. M. López-Higuera

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 661917 (2007) https://doi.org/10.1117/12.738385
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

A level and flexible quasi-distributed liquid sensor based on the changes in the light transmittance in a plastic optical fiber cable is proposed. The measurement points are constituted by small areas created by side-polishing on a curved fiber and the removal of a portion of the core. These points are distributed and adapted on each full-turn of a spire of fiber built on a cylindrical tube vertically positioned in a tank. The changes between the refractive indexes of air and liquid generate a signal power proportional to the position and level of the liquid. The sensor system was successfully demonstrated in the laboratory and experimental results of three prototypes with 10, 8, and 5 measurement points and with bend radius of 5mm are presented in this paper.

Citation Download Citation

M. Lomer, A. Quintela, M. A. Quintela, A. Cobo, and J. M. López-Higuera "Quasi-distributed liquid level measurement with adaptable optical fiber transducers", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 661917 (2 July 2007); https://doi.org/10.1117/12.738385

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