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Detecting harmful gases using fluctuation-enhanced sensing with Taguchi sensors

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9 Author(s)
Kish, Laszlo B. ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA ; Yingfeng Li ; Solis, J.L. ; Marlow, W.H.
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Sensing techniques are often required to not only be versatile and portable, but also to be able to enhance sensor information. This paper describes and demonstrates a new approach to chemical signal analysis that we call fluctuation-enhanced sensing. It utilizes the entire bandwidth of the sensor signal in contrast to more conventional approaches that rely on the dc response. The new principle holds prospects for significantly reducing the necessary number of sensors in artificial noses and tongues, and it can provide improved sensitivity.

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Sensors Journal, IEEE  (Volume:5 ,  Issue: 4 )