NDLI: Optimization of the methane gas sensor immunity based on electromagnetic measurement

Content Provider	IEEE Xplore Digital Library
Author	Zhang Yingchun Ma Fengying
Copyright Year	2011
Description	Author affiliation: College of Electronic Information and Control Engineering, Shandong Polytechnic University, Jinan 250100, China (Zhang Yingchun; Ma Fengying)
Abstract	In order to clear up false alarms caused by electromagnetic interference, a novel field way was put forward in which the radiated emission measurement in the coal mining roadway was finished. The data was obtained through the spectrum analyzer. Firstly, the optimization of explosion-proof enclosure was completed according to the distribution of radiated interference characteristics. As a result, with the optimization of explosion-proof enclosure, the false alarms of methane gas sensor significantly reduced; however, there were still occasionally false alarms when nearby electrical equipments were switched on and off. The false alarms were caused by conducted interference mostly from lines. Secondly, the complex EMI filter was put forward at power ports and the EMI was controlled within the allowable range. In the end, the running results demonstrated that the problem of false alarms had been resolved successfully. It is concluded that the improved measures are highly remarkable in enhancing the immunity of the methane gas sensor.
Starting Page	5058
Ending Page	5062
File Size	192167
Page Count	5
File Format	PDF
ISBN	9781457706776
ISSN	21612927
e-ISBN	9789881725592
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Chinese Assoc of Automati
Subject Keyword	Electromagnetic Interference Methane Gas Sensor Electromagnetic interference Surge protection Shielding Properties Apertures Coal mining Surges Immunity False Alarm Gas detectors
Content Type	Text
Resource Type	Article

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