Research of oxygen concentration and temperature detection system

GONG Zhongqiang; LI Jun; ZHANG Shulin; GUO Qinghua

doi:10.13272/j.issn.1671-251x.2015.10.006

Volume 41 Issue 10

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GONG Zhongqiang, LI Jun, ZHANG Shulin, et al. Research of oxygen concentration and temperature detection system[J]. Industry and Mine Automation, 2015, 41(10): 20-23. doi: 10.13272/j.issn.1671-251x.2015.10.006

Citation:

GONG Zhongqiang, LI Jun, ZHANG Shulin, et al. Research of oxygen concentration and temperature detection system[J]. Industry and Mine Automation, 2015, 41(10): 20-23. doi: 10.13272/j.issn.1671-251x.2015.10.006

Citation:

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Research of oxygen concentration and temperature detection system

doi: 10.13272/j.issn.1671-251x.2015.10.006

GONG Zhongqiang^{1, 2},
LI Jun¹,
ZHANG Shulin^{1, 2},
GUO Qinghua^{1, 2}

1.
CCTEG Chongqing Research Institute, Chongqing 400039, China
2.
State Key Lab for Gas Disaster Monitoring and Emergency Technology, Chongqing 400037, China

Publish Date: 2015-10-10

Abstract

Abstract

For problems that long response time, low precision and poor reliability of existing coal mine fire monitoring technologies, a oxygen concentration and temperature detection system was designed based on tunable laser absorption spectroscopy detecting technology. The system has been tested in laboratory. The test results show that the measurement error of the system is less than 1% when oxygen concentration is 0-100.0%, and the one is less than 2% when gas temperature is 253-1 000 K.
- coal mine fire pre-alarming,
- oxygen concentration detection,
- temperature detection,
- tunable laser absorption spectroscopy