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Proceedings Paper

Fiber optic methane monitor based TDLAS and its application in VAM Oxidiser system
Author(s): Yubin Wei; Yanfang Li; Yanjie Zhao; Tongyu Liu
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Paper Abstract

Fiber optic methane monitor based tunable diode laser absorption spectroscope technology (TDLAS) is demonstrated, which is developed for remotely monitoring the concentration of Methane gas at multiple locations. A DFB LD light source of 1665nm is the key unit in the system.A microprocessor is used to control the driver of DFB LD and Acquire data.To realize high precision measure of CH4,we use a reference cell. The instrument achived long time precision of 0.05%(for 0~4% full scale range) and 0.5%(for 0~100% full scale range).The instruments has been used to monitor the mathane of a VAM Oxidiser unit in methane power generation in a long time .The results of measurement are shown and discussed in this paper.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75034N (5 October 2009); doi: 10.1117/12.836176
Show Author Affiliations
Yubin Wei, Shandong Academy of Sciences (China)
Yanfang Li, Shandong Academy of Sciences (China)
Yanjie Zhao, Shandong Academy of Sciences (China)
Tongyu Liu, Shandong Academy of Sciences (China)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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