Numéro |
J. Phys. IV France
Volume 04, Numéro C7, Juillet 1994
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique |
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Page(s) | C7-519 - C7-522 | |
DOI | https://doi.org/10.1051/jp4:19947122 |
8th International Topical Meeting on Photoacoustic and Photothermal Phenomena
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-519-C7-522
DOI: 10.1051/jp4:19947122
1 Laser Photoacoustic Laboratory, Department of Agricultural Engineering and Physics, Agricultural University, Bomenweg 4, 6703 HD Wageningen, The Netherlands
2 Department of Mathematics, Dreijenlaan 4, Agricultural University, 6703 HA Wageningen, The Netherlands
3 Department of Water Resources, Agricultural University, de Nieuwlanden, Nieuwe Kanaal 11, 6709 PA Wageningen, The Netherlands
© EDP Sciences 1994
8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-519-C7-522
DOI: 10.1051/jp4:19947122
The analysis of error in trace gas concentration measurements by intermodulated photoacoustic stark spectroscopy (IMPASS)
T. Groot1, D. Bicanic1, M. van Montfort2, P. Torfs3, R. Braun1 and K. van Asselt11 Laser Photoacoustic Laboratory, Department of Agricultural Engineering and Physics, Agricultural University, Bomenweg 4, 6703 HD Wageningen, The Netherlands
2 Department of Mathematics, Dreijenlaan 4, Agricultural University, 6703 HA Wageningen, The Netherlands
3 Department of Water Resources, Agricultural University, de Nieuwlanden, Nieuwe Kanaal 11, 6709 PA Wageningen, The Netherlands
Abstract
Data collected in an actual IMPASS experiment with a static gaseous mixture (methyl fluoride/ethylene/nitrogen) of preselected concentrations were analyzed with respect to uni(bi)modality, symmetry, skeweness and kurtosis. Bimodal probability distribution function is significantly different from Gaussian suggesting the presence of "mixed" data in the measurements ; the potential cause for this phenomenon is discussed.
© EDP Sciences 1994