PULSE PHOTOMETER Russian patent published in 1996 - IPC

FIELD: instrument engineering; measurement technology. SUBSTANCE: pulse photometer has reflector, medium to be measured and protective glass connected optically with objective, pulse light source, optical attenuator, diffuser, , receiving mirror, two photoconverters, control and processing unit. Input of control unit is connected to output of the first photoconverter. Power input of the first photoconverter is connected to controlled voltage output of control and processing unit. Beam-splitting plate is mounted between receiving mirror and diffuser. The second photoconverter is mounted in front of beam-splitting plate at focus point of receiving mirror. The second photoconverter is connected in series with control amplifier, switch, matching amplifier, analog-to-digital converter and digital indictor. Device also has two comparators, amplifier control unit, decoder and strobe pulse former. Outputs of comparator are connected to output of matching amplifier. Outputs of comparator are connected to amplifier control unit. Output of amplifier control unit is connected with control input of controlled amplifier and decoder. Output of decoder is connected to digit input of digital indicator. Input of strobe pulse former is connected with output of photoconverter. Output of former is connected to control input of switch. EFFECT: improved precision of measurement. 2 dwg