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Vol. 39, Issue 1, January 2004, pp. 94-99

 

Bullet

 

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: jiaozheng@yahoo.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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