Share Email Print
cover

Proceedings Paper • new

Design and simulation of a fiber-optic hydrogen sensor based on tunable diode laser spectroscopy
Author(s): Fenghuan Hao; Pengfei Liu; Dongming Li; Huiliang Ge
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A fiber-optic hydrogen sensor based on tunable diode laser spectroscopy is designed. The fiber-optic hydrogen sensor is composed of a fiber-optic Fabry-Perot interferometer, where one mirror is made of a hydrogen sensitive Pd thin film. By optimizing the structure parameters of the fiber-optic hydrogen sensor, a reflectance spectrum with the similar curve to a gas absorption spectrum is obtained. The reflectance spectrum of the fiber-optic hydrogen sensor is calculated at different hydrogen concentrations and the relation between the intensity minimums of the spectrum and the hydrogen concentrations is explored. The wavelength modulation spectroscopy is used to analyze the reflectance spectra, the relation between the second harmonic component and hydrogen concentrations is obtained, and the feasibility of the application of TDLAS on the fiber-optic hydrogen sensor is verified. This hydrogen sensing method has great potential in industrial application due to the advantages of high sensitivity, low cost, system’s simplicity.

Paper Details

Date Published: 23 October 2018
PDF: 4 pages
Proc. SPIE 10821, Advanced Sensor Systems and Applications VIII, 108211P (23 October 2018); doi: 10.1117/12.2501191
Show Author Affiliations
Fenghuan Hao, Hangzhou Applied Acoustics Research Institute (China)
Pengfei Liu, Hangzhou Applied Acoustics Research Institute (China)
Dongming Li, Hangzhou Applied Acoustics Research Institute (China)
Huiliang Ge, Hangzhou Applied Acoustics Research Institute (China)


Published in SPIE Proceedings Vol. 10821:
Advanced Sensor Systems and Applications VIII
Tiegen Liu; Shibin Jiang, Editor(s)

© SPIE. Terms of Use
Back to Top