DocumentCode :
656878
Title :
Room temperature ionic-liquid electrochemical gas sensor array system for real-time mine safety monitoring
Author :
Haitao Li ; Xiaoyi Mu ; Zhe Wang ; Min Guo ; Xiangqun Zeng ; Mason, Andrew J.
Author_Institution :
Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA
fYear :
2013
fDate :
3-6 Nov. 2013
Firstpage :
1
Lastpage :
4
Abstract :
This paper presents a real-time, electrochemical gas sensor array system featuring room temperature ionic-liquid interfaces and targeting safety monitoring in underground mines. A prototype system was constructed using a custom ionic-liquid sensor array, a custom multi-mode electrochemical sensor readout board, and a commercial low power microcontroller board. Gas sensors for multiple mine gases were implemented in a 2 by 2 miniaturized array. A novel resource-sharing circuit tailored to our gas sensor array was utilized to significantly decrease power, cost and size while implementing two electrochemical detection modes. The system achieves a resolution as high as 0.01% vol in amperometry mode and 0.06% vol in impedance spectroscopy mode for oxygen as an example target gas.
Keywords :
amperometric sensors; electrochemical impedance spectroscopy; gas sensors; mining; prototypes; real-time systems; sensor arrays; amperometry mode; electrochemical gas sensor array system; impedance spectroscopy mode; ionic-liquid sensor array; low power microcontroller board; multimode electrochemical sensor readout board; prototype system; real-time mine safety monitoring; room temperature ionic-liquid interfaces; temperature 293 K to 298 K; Arrays; Control systems; Fuel processing industries; Gas detectors; Instruments; Monitoring; Temperature sensors; electrochemical gas sensor array; mine safety;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
SENSORS, 2013 IEEE
Conference_Location :
Baltimore, MD
ISSN :
1930-0395
Type :
conf
DOI :
10.1109/ICSENS.2013.6688143
Filename :
6688143
Link To Document :
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