Chemical species concentration measurement via wireless sensors
Hayes, Jer and Beirne, Stephen and Kiernan, Breda M. and Slater, Conor and Lau, King-Tong and Diamond, Dermot (2008) Chemical species concentration measurement via wireless sensors. In: WCSET 2008: World Congress on Science, Engineering and Technology, 29-31 October 2008, Venice, Italy. ISBN 2070-3740
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This paper describes studies carried out to investigate the viability of using wireless cameras as a tool in monitoring changes in air quality. A camera is used to monitor the change in colour of a chemically responsive polymer within view of the camera as it is exposed to varying chemical species concentration levels. The camera captures this image and the colour change is analyzed by averaging the RGB values present. This novel chemical sensing approach is compared with an established chemical sensing method using the same chemically responsive polymer coated onto LEDs. In this way, the concentration levels of acetic acid in the air can be tracked using both approaches. These approaches to chemical plume tracking have many applications for air quality monitoring.
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