Low concentration monitoring of exhaust gases using a UV-based optical sensor

Gerard Dooly; Elfed Lewis; Colin Fitzpatrick; Paul Chambers

doi:10.1109/JSEN.2007.894133

Low concentration monitoring of exhaust gases using a UV-based optical sensor

Gerard Dooly, Elfed Lewis, Colin Fitzpatrick, Paul Chambers

Research output: Contribution to journal › Article › peer-review

Abstract

The development of an ultra-violet (UV) differential optical absorption spectroscopy (DOAS) fibre-optic sensor for the monitoring of vehicle exhaust gases is described in this paper. Experimental results describing the operation of this sensor with NO₂, SO₂, and NO are shown. These experimental results are compared with existing published spectroscopic absorption measurements. It is shown that the minimum detectable concentration of NO₂ is 1 ppm, SO₂ is 1 ppm, and NO is 26 ppm. The sensor was found to have a low susceptibility to interference between the detection of these gases.

Original language	English
Pages (from-to)	685-691
Number of pages	7
Journal	IEEE Sensors Journal
Volume	7
Issue number	5
DOIs	https://doi.org/10.1109/JSEN.2007.894133
Publication status	Published - May 2007

Keywords

Differential optical absorption spectroscopy (DOAS)
Exhaust gas sensing
Pollution monitoring
Spectroscopy
Ultra-violet (UV)

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10.1109/JSEN.2007.894133

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abstract = "The development of an ultra-violet (UV) differential optical absorption spectroscopy (DOAS) fibre-optic sensor for the monitoring of vehicle exhaust gases is described in this paper. Experimental results describing the operation of this sensor with NO2, SO2, and NO are shown. These experimental results are compared with existing published spectroscopic absorption measurements. It is shown that the minimum detectable concentration of NO2 is 1 ppm, SO2 is 1 ppm, and NO is 26 ppm. The sensor was found to have a low susceptibility to interference between the detection of these gases.",

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AB - The development of an ultra-violet (UV) differential optical absorption spectroscopy (DOAS) fibre-optic sensor for the monitoring of vehicle exhaust gases is described in this paper. Experimental results describing the operation of this sensor with NO2, SO2, and NO are shown. These experimental results are compared with existing published spectroscopic absorption measurements. It is shown that the minimum detectable concentration of NO2 is 1 ppm, SO2 is 1 ppm, and NO is 26 ppm. The sensor was found to have a low susceptibility to interference between the detection of these gases.

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KW - Pollution monitoring

KW - Spectroscopy

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Low concentration monitoring of exhaust gases using a UV-based optical sensor

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