City Research Online

Study of quasi-distributed optical fiber methane sensors based on laser absorption spectrometry

Gong, W., Wei, Y., Li, Y., Wang, Z., Zhang, T., Chang, J., Grattan, K. T. V. ORCID: 0000-0003-2250-3832 and Liu, T. (2019). Study of quasi-distributed optical fiber methane sensors based on laser absorption spectrometry. Proceedings of SPIE - The International Society for Optical Engineering, 11340, p. 1134020. doi: 10.1117/12.2548181

Abstract

The coal industry plays an important role in the economic development of China. With the increase of coal mining year by year, coal mine accidents caused by gas explosion also occur frequently, which poses a serious threat to the life safety of absenteeism and national property safety. Therefore, high-precision methane fiber sensor is of great significance to ensure coal mine safety. This paper mainly introduces two kinds of quasi-distributed gas optical fiber sensing systems based on laser absorption spectroscopy. The gas fiber optic sensor based on absorption spectrum has high measurement accuracy, fast response and long service life. One is quasi-distributed optical fiber sensing system based on spatial division multiplexing (SDM) technology and the other is quasi-distributed optical fiber sensing system based on optical time domain reflection and time division multiplexing(TDM) technology.

Publication Type: Article
Additional Information: Copyright SPIE (2019) Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.
Publisher Keywords: Quasi-distributed; Methane detection; SDM; Optical time domain reflection; TDM
Subjects: Q Science > QD Chemistry
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments: School of Mathematics, Computer Science & Engineering > Engineering > Electrical & Electronic Engineering
URI: https://openaccess.city.ac.uk/id/eprint/23870
[img]
Preview
Text - Accepted Version
Download (425kB) | Preview

Export

Downloads

Downloads per month over past year

View more statistics

Actions (login required)

Admin Login Admin Login