INFRARED MULTIPLE GAS ANALYZER AND ANALYSIS

摘要

An infrared, multiple gas analyzer for measuring the concentration of a plurality of infrared absorbent gases with a simple optical arrangement for transmitting an infrared beam along an optical path along with gas mixtures to be analyzed. Light transmitting tubes arranged in a U-like configuration (15) transmit infrared energy and the gases analyzed over a small path from an infrared source (15IRS) to an infrared detector (17) which provides electrical analog output signals representative of the detected gases.