DEVICE 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, wherein the flowing gas mixture comprises solids having a defined size distribution, wherein by way of an optical spectrometer the concentration of a gas is measured in the flowing gas mixture, which comprises a measurement beam of the optical spectrometer being conducted during the measurement through a measurement channel having walls made of a gas-permeable material. The invention also relates to a device for carrying out such a method.