On-line Magazine 'Sensors & Transducers' (S&T e-Digest)
(ISSN 1726- 5479)
Vol. 39, Issue 1, January 2004, pp. 94-99
Detect Different Gases with a Single Sensor by Dynamic Measurements
Zheng Jiao, Minghong Wu, Jianzhong Gu, Deqing Wang, Yanli Wang
Shanghai Applied Radiation Institute, Shanghai University,
Shanghai 201800, China, e-mail: email@example.com
Received: 6 December 2003 /Accepted: 14 January 2004 /Published: 18 January 2004
Abstract: Gases have different active energy when adsorbing and reacting on the surface of sensitive materials. And the active energy will be changing along with temperature's change. According to this thought, a new method of knowledge acquisition is presented in this paper to test the dynamic gas sensitive characteristics of gas sensor. This novel measurement can get characteristic curves for different gases, so that it is possible to Detect different gases with a single sensor by Dynamic Measurements.
Keywords: dynamic process; characteristic curve; adsorption; sensitive
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