Improvement of the dynamic characteristics on catalytic sensor

Author

Tong, Minming ; Niu, Mu ; Tong, Ziyuan ; Liu, Xiaowen ; Dai, Xinlian

Author_Institution

Coll. of Inf. & Electr. Eng., China Univ. of Min. & Technol., Xuzhou, China

fYear

2009

fDate

16-19 Aug. 2009

Abstract

The thermostatic methane detection with catalytic sensor is a kind of new detection technique, which improves dynamic characteristic by keeping the catalytic sensor in a constant temperature with a closed loop control system. The dynamic correction link was designed on the basis of analyzing the dynamic characteristics of thermostatic detection and adjusting the system parameters. The test showed that the dynamic characteristics of the methane detection and the dynamic response were improved (the response time from 18s to 5s). The high-speed response is very helpful to monitor the sudden change of methane in mine.

Keywords

chemical sensors; closed loop systems; catalytic sensor; closed loop control system; dynamic correction link; thermostatic methane detection; Circuits; Control systems; Delay effects; Monitoring; Resistance heating; Sensor phenomena and characterization; Sensor systems; Temperature sensors; Thermal sensors; Transfer functions; dynamic analysis; methane detection; response time;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3863-1

Electronic_ISBN

978-1-4244-3864-8

Type

conf

DOI

10.1109/ICEMI.2009.5274414

Filename

5274414