In optics humidity compensation in NDIR exhaust gas measurements of NO2

T Stolberg-Rohr, R Buchner, S Clausen, J Møller Jensen, A Skouboe, G J Hawkins, R Skov Hansen

Symposium on Surface Functionalization of Optical Fiber and Waveguide Based Bio- and Chemical-Sensors, The Optical Society, Barcelona, Spain, 27 - 31 July (2014)


NDIR is proposed for monitoring of air pollutants emitted by ship engines. Careful optical filtering overcomes the challenge of optical detection of NO2 in humid exhaust gas, despite spectroscopic overlap with the water vapour band.

DOI: 10.1364/SENSORS.2014.SeTh1C.3

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