Circuit and Noise Analysis of Odorant Gas Sensors in an E-Nose

Sensors

Fengchun Tian²  Simon X. Yang¹ 

[1] School of Engineering, University of Guelph, Guelph, ON, Canada, N1G 2W1;College of Communication Engineering, Chongqing University, Chongqing, P.R. China 400044

关键词: gas sensor;    circuit;    noise;    power spectrum;    probability distribution function;   

DOI  :  10.3390/s5010085

来源: mdpi

【 摘 要 】

In this paper, the relationship between typical circuit structures of gas sensor circuits and their output noise is analyzed. By using averaged segmenting periodical graph and improved histogram estimation methods, we estimated their noise power spectra and optimal probability distribution functions (pdf). The results were confirmed through experiment studies.

【 授权许可】

CC BY   
© 2005 by the authors; licensee MDPI, Basel, Switzerland.