Simultaneous detection of multiple environmental contaminants through advanced signal processing of electrochemical sensor signals

Subhadeep Chakraborty, Michael P. Manahan, Jr., Matthew M. Mench

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The possibility of large-scale attacks using chemical warfare agents (CWAs) has exposed the critical need for fundamental research enabling the reliable, unambiguous, and early detection of trace CWAs and toxic industrial chemicals. This paper presents a unique approach for identification and classification of environmental contaminants by perturbing an electrochemical (EC) sensor with an oscillating potential rather than static voltage levels. The dynamic response, being a function of the degree and mechanism of contamination, is then processed with a symbolic dynamic filter for extraction of representative patterns, which are then classified using a trained neural network. Extraction of statistically rich information from the current response enables identification of characteristics species even when they are mixed with other confounding gases. The approach presented in this paper promises to extend sensing power and sensitivity of these EC sensors by augmenting and complementing the sensor technology with state-of-the-art embedded real time signal processing capabilities.

Original languageEnglish (US)
Title of host publication2013 American Control Conference, ACC 2013
Pages2687-2692
Number of pages6
StatePublished - Sep 11 2013
Event2013 1st American Control Conference, ACC 2013 - Washington, DC, United States
Duration: Jun 17 2013Jun 19 2013

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Other

Other2013 1st American Control Conference, ACC 2013
CountryUnited States
CityWashington, DC
Period6/17/136/19/13

Fingerprint

Chemical warfare
Electrochemical sensors
Signal processing
Impurities
Industrial chemicals
Dynamic response
Contamination
Neural networks
Sensors
Electric potential
Gases

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Chakraborty, S., Manahan, Jr., M. P., & Mench, M. M. (2013). Simultaneous detection of multiple environmental contaminants through advanced signal processing of electrochemical sensor signals. In 2013 American Control Conference, ACC 2013 (pp. 2687-2692). [6580240] (Proceedings of the American Control Conference).
Chakraborty, Subhadeep ; Manahan, Jr., Michael P. ; Mench, Matthew M. / Simultaneous detection of multiple environmental contaminants through advanced signal processing of electrochemical sensor signals. 2013 American Control Conference, ACC 2013. 2013. pp. 2687-2692 (Proceedings of the American Control Conference).
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Chakraborty, S, Manahan, Jr., MP & Mench, MM 2013, Simultaneous detection of multiple environmental contaminants through advanced signal processing of electrochemical sensor signals. in 2013 American Control Conference, ACC 2013., 6580240, Proceedings of the American Control Conference, pp. 2687-2692, 2013 1st American Control Conference, ACC 2013, Washington, DC, United States, 6/17/13.

Simultaneous detection of multiple environmental contaminants through advanced signal processing of electrochemical sensor signals. / Chakraborty, Subhadeep; Manahan, Jr., Michael P.; Mench, Matthew M.

2013 American Control Conference, ACC 2013. 2013. p. 2687-2692 6580240 (Proceedings of the American Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Chakraborty S, Manahan, Jr. MP, Mench MM. Simultaneous detection of multiple environmental contaminants through advanced signal processing of electrochemical sensor signals. In 2013 American Control Conference, ACC 2013. 2013. p. 2687-2692. 6580240. (Proceedings of the American Control Conference).