TY - JOUR
T1 - On-board monitoring of vehicle exhaust emissions using an ultraviolet optical fibre based sensor
AU - Dooly, Gerard
AU - Lewis, Elfed
AU - Fitzpatrick, Colin
PY - 2007/6/1
Y1 - 2007/6/1
N2 - A fibre-optic sensor for the monitoring of hazardous vehicle exhaust emissions of the order of parts per million (PPM) is described and tested. The sensor based on absorption in the ultraviolet region is used to simultaneously measure the concentrations of three of the major exhaust emission gases and output them to the vehicle's on-board computer. Experimental results describing the operation of this sensor with nitrogen dioxide (NO2), sulfur dioxide (SO2) and nitric oxide (NO) are shown. The sensor was found to have a lower threshold of detection for NO2 of 2ppm, SO 2 of 2ppm and NO of 20ppm. The sensor showed response times of less than four seconds and demonstrated minimal susceptibility to cross interferences of the gases.
AB - A fibre-optic sensor for the monitoring of hazardous vehicle exhaust emissions of the order of parts per million (PPM) is described and tested. The sensor based on absorption in the ultraviolet region is used to simultaneously measure the concentrations of three of the major exhaust emission gases and output them to the vehicle's on-board computer. Experimental results describing the operation of this sensor with nitrogen dioxide (NO2), sulfur dioxide (SO2) and nitric oxide (NO) are shown. The sensor was found to have a lower threshold of detection for NO2 of 2ppm, SO 2 of 2ppm and NO of 20ppm. The sensor showed response times of less than four seconds and demonstrated minimal susceptibility to cross interferences of the gases.
KW - Emission regulations
KW - Gas sensor
KW - Pollution monitoring
KW - Spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=34249705381&partnerID=8YFLogxK
U2 - 10.1088/1464-4258/9/6/S05
DO - 10.1088/1464-4258/9/6/S05
M3 - Article
AN - SCOPUS:34249705381
SN - 1464-4258
VL - 9
SP - S24-S31
JO - Journal of Optics A: Pure and Applied Optics
JF - Journal of Optics A: Pure and Applied Optics
IS - 6
M1 - S05
ER -