Apparatus and method for determining a gas concentration in a flowing gas mixture

摘要

The invention relates to a method for determining a gas concentration in a flowing gas mixture, the flowing gas mixture comprising solids with a certain size distribution, the concentration of a gas in the flowing gas mixture being measured by means of an optical spectrometer, characterized in that a measuring beam of the optical spectrometer during the measurement is conducted through a measuring channel with walls made of a gas-permeable material. The invention also relates to a device for performing such a method.