METHOD AND DEVICE FOR DETERMINING THE GASEOUS QUALITY OF A GAS MIXTURE

摘要

A method for determining the gaseous quality of a gas mixture wherein the gas mixture is subjected to infrared radiation. A sensor device measures the proportion of infrared rays absorbed by the gas mixture. The results obtained therefrom enable the methane index number to be determined. The sensor device is composed of a source of radiation for infrared rays and a radiation detector assigned to said source. The measuring chamber containing the gas whose methane index number is to be determined is therefore located between the source of radiation and the radiation sensor.