A Novel Temperature-Insensitive Hydrostatic Liquid-Level Sensor Using Chirped FBG
Document Type
Article
Publication Date
1-1-2019
Abstract
A novel half-bonded chirped fiber Bragg grating on a natural rubber diaphragm has been proposed to enhance the sensitivity and to compensate the temperature effects of a hydrostatic liquid-level sensor. This innovative fabrication method is resulted in the narrowing of the bandwidth with the hydrostatic pressure sensitivity recorded at-253 pm/kPa and water column sensitivity at-0.0253 nm/cm. The bandwidth modulation measurement was insensitive to temperature variations when compared with center wavelength modulation measurement. Furthermore, the proposed hydrostatic liquid-level sensor is compatible with a low-cost photodetector.
Keywords
Chirped fiber Bragg grating, Hydrostatic pressure, Liquid level, temperature compensation
Divisions
Science
Publication Title
IEEE Sensors Journal
Volume
19
Issue
1
Publisher
Institute of Electrical and Electronics Engineers (IEEE)