Paper Title:
Difference Absorption Optical Fiber Methane Gas Sensor Based on FBG
  Abstract

In this paper, based on analysis of the near infrared spectral absorption of methane molecule and considering factors such as compatibility with the transmission characteristics of silica optical fiber and the price, using Fiber Bragg Grating (FBG) filters to replace the the traditional interference filter, a novel kind of all-fiber remote sensor utilizing FBG filters and 1.33μm high power light-emitting diode (LED) was developed for real time measurement of methane gas concentration. FBG has a low insert loss and can be produced easily compared with dielectric interference filters. Theory and experiment proved that the system has simple construct and high sensibility.

  Info
Periodical
Chapter
Chapter 3: Sensor, Test and Signal Processing
Edited by
Zhixiang Hou
Pages
580-583
DOI
10.4028/www.scientific.net/AMM.128-129.580
Citation
Y. Y. Kang, Y. J. Wang, L. K. Yang, Y. T. Wang, "Difference Absorption Optical Fiber Methane Gas Sensor Based on FBG ", Applied Mechanics and Materials, Vols. 128-129, pp. 580-583, 2012
Online since
October 2011
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Price
$32.00
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