An FBG based hydrostatic pressure sensor for liquid level measurements

D. Sengupta; M. Sai Shankar; P. Saidi Reddy; R. L. N. Sai Prasad; K. Srimannarayana

doi:10.1117/12.922164

25 April 2012 An FBG based hydrostatic pressure sensor for liquid level measurements

D. Sengupta, M. Sai Shankar, P. Saidi Reddy, R. L. N. Sai Prasad, K. Srimannarayana

Proceedings Volume 8426, Microstructured and Specialty Optical Fibres; 84260C (2012) https://doi.org/10.1117/12.922164
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

A small and simple hydrostatic pressure sensor using fiber Bragg grating sensor for liquid level sensing is reported. The working principle of the sensor head design is based on transferring hydrostatic radial pressure to axial strain to the FBG. An FBG written in a fiber of diameter 50μm has been used for the measurement. The experimental result shows that sensitivity of the sensor can reach 23pm/cm of liquid column. The sensor can be useful in applications that involved with less hydrostatic pressure, like a tank with inflammable liquid in a fuel gas station.

Citation Download Citation

D. Sengupta, M. Sai Shankar, P. Saidi Reddy, R. L. N. Sai Prasad, and K. Srimannarayana "An FBG based hydrostatic pressure sensor for liquid level measurements", Proc. SPIE 8426, Microstructured and Specialty Optical Fibres, 84260C (25 April 2012); https://doi.org/10.1117/12.922164

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