An integrated control system for carbon monoxide detection, emission and recycling

CHEN Hu; ZHOU Feng-xing; XU Zhen; WANG Fang

doi:10.3969/j.issn.1001-3806.2011.03.019

LASER TECHNOLOGY > 2011 > 35(3): 360-363. > DOI: 10.3969/j.issn.1001-3806.2011.03.019

CHEN Hu, ZHOU Feng-xing, XU Zhen, WANG Fang. An integrated control system for carbon monoxide detection, emission and recycling[J]. LASER TECHNOLOGY, 2011, 35(3): 360-363. DOI: 10.3969/j.issn.1001-3806.2011.03.019

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An integrated control system for carbon monoxide detection, emission and recycling

Engineering Center of the Education Ministry of Metallurgical Automation and Detection Technology, Wuhan University of Science and Technology, Wuhan 430081, China

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Received Date: July 17, 2010
Revised Date: August 22, 2010
Published Date: May 24, 2011

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Abstract

An integrated control system was designed for carbon monoxide gas detection, emission and recycling based on tunable diode laser absorption spectroscopy. A MCU MC9S12DG128B was embedded in the system as its core controller to produce laser modulation signal. By collecting optical power and the second harmonic of the absorbed gas, the gas composition and concentration was analyzed, and then the information of the gas concentration was uploaded to a real-time industrial computer. The results show that the laser detection of gases with high sensitivity and selectivity, fast response, continuous analysis and anti-jamming performance, and it meets the requirements in the industrial field.
- laser technique,
- gas test,
- light source of distributed feedback diode laser,
- second harmonic detection

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