Single uniform FBG for simultaneous measurement of liquid level and temperature

Abstract

In this paper, we propose and demonstrate a novel scheme for simultaneous measurement of liquid level and temperature based on a simple uniform fiber Bragg grating (FBG) by monitoring both the short-wavelength-loss peaks and its Bragg resonance. The liquid level can be measured from the amplitude changes of the short-wavelength-loss peaks, while temperature can be measured from the wavelength shift of the Bragg resonance. Both theoretical simulation results and experimental results are presented. Such a scheme has some advantages including robustness, simplicity, flexibility in choosing sensitivity and simultaneous temperature measurement capability.

Divisions: College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies > Electronics & Computer Engineering
College of Engineering & Physical Sciences
Uncontrolled Keywords: fiber optics sensors, fiber Bragg gratings, liquid-level sensor
Publication ISSN: 0957-0233
Last Modified: 23 Oct 2019 10:57
Date Deposited: 29 Sep 2010 12:05
Published Date: 2010-07-28
Authors: Shu, Xuewen
Sugden, Kate
Bennion, Ian

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