GAS ANALYZER Russian patent published in 1997 - IPC

FIELD: examination and analysis of substances. SUBSTANCE: analyzer has light source 1, monochromator 4, photoreceiver 5, amplifier 6, synchronous detector 7 the reference input of which is connected to clock-pulse generator 9, and processing and indicating unit 8. Device has also frequency synthesizer 11 the frequency-setting input of which is connected to control unit 10, and modulated power amplifier 12. Control input of power amplifier is connected to output of clock-pulse generator 9, and its output is connected to control input of monochromator 4 which is made acoustic. Light beam splitter 2 and corner reflector 3 connected optically to light source 1 and to acoustic monochromator 4 through light beam splitter 2 are inserted between wide-band light source 1 and acoustic monochromator. In this case, amplifier 6 are control input of which is connected to control unit 10 has controlled transmission factor. Spectrum corrector may be installed at input of acoustic optical monochromator, and transforming objective may be positioned between light beam splitter and corner reflector. EFFECT: higher measurement result. 3 cl, 1 dwg