DEVICE FOR DETERMINING AIR EXCESS IN COMBUSTION CHAMBER Russian patent published in 1996 - IPC

FIELD: heat power engineering and metallurgy. SUBSTANCE: device has radiation receiver that points to the combustion zone, optical unit, amplifier of optical signals, two or more band filters, one converter, and one computer. The inputs of all band filters are connected with the output of the common amplifier. The outputs of the filters are connected with respective inputs of the computer through respective dividers of optical signals. EFFECT: improved accuracy of determining. 8 dwg, 6 tbl