Journal of the European Optical Society - Rapid publications, Vol 4 (2009)

Liquid level sensing by use of digital formatted optical spectrum spreading technique

W. Zhang, K. Sugden, S. Grice, I. Bennion


We propose a novel technique for optical liquid level sensing. The technique takes advantage of an optical spectrum spreading technique and directly measures liquid level with a digital format. The performance of the sensor does not suffer from changes of environmental variables and system variables. Due to its distinct measurement principle both high resolution and a large measurement range can be achieved simultaneously.

© The Authors. All rights reserved. [DOI: 10.2971/jeos.2009.09022]

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