Decommissioned
Principle of the Measurement
Excitation of ethylene inside a resonator using a modulated CO2 laser
Quenching of excited ethylene by collisions
Heat transfer leads to audible noise at the laser modulation frequency
Detection of noise with a microphone
Species Measured
Time Response / Detection Limit
4-20 seconds / 70-200 pptv
Manufacturer
Field Projects
Key Publications
J.A. de Gouw, S. te Lintel Hekkert, J. Mellqvist, C. Warneke, E.L. Atlas, F.C. Fehsenfeld, A. Fried, G.J. Frost, F.J.M. Harren, J.S. Holloway, B. Lefer, R. Lueb, J.F. Meagher, D.D. Parrish, M. Patel, L. Pope, D. Richter, C. Rivera, T.B. Ryerson, J. Samuelsson, J. Walega, R.A. Washenfelder, P. Weibring and X. Zhu, Airborne measurements of ethene from industrial sources using laser photo-acoustic spectroscopy, Environmental Science & Technology, doi:10.1021/es802701a, 2009.
W.C. Kuster, F.J.M. Harren and J.A. de Gouw, Inter-comparison of laser photoacoustic spectroscopy and gas chromatography techniques for measurements of ethene in the atmosphere, Environmental Science & Technology, doi:10.1021/es0504385, 2005.