Patent ID: 6864983
Filing Date: 2005-03-08
Classification: G01N

Abstract:
1. Method for measuring gaseous emissions and/or flux based on using a spectrometer instrument for receiving absorption spectra to detect and record, in a wavelength-resolved manner, the electromagnetic radiation coming directly from the sun, and characterized in that the instrument is arranged in such a way that the connecting line between the instrument and the sun transects a gas volume which constitutes all or a part of the gas flow emitted from a source, in that the recorded electromagnetic radiation is used for calculating the gas concentration along the optical connecting line in the gas volume, and in that the concentration which is obtained in this way, and which is integrated over the cross-sectional area traversed by the connecting line, is used, together with information about the speed of the wind, the instrument and the gas-emitting source, to calculate the gas flow through the cross-sectional area which is traversed.