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25 April 2012 An FBG based hydrostatic pressure sensor for liquid level measurements
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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.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);

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