LASER MEASURING SYSTEM Russian patent published in 2021 - IPC G01J3/42 G01N21/31 G21C17/22 

FIELD: measurement instruments.

SUBSTANCE: laser measuring system can be used for absorption spectral analysis of substances in the technical environments of nuclear power plants (NPP). The system contains a measuring cell 1, two reference cells 3 and 5, a laser generator 19, three photodetector units 13-15, two laser radiation meters 20 and 34, three controlled spectral filters 16-18, a retractable reflective mirror 35 with a displacement unit 36, a processing and control unit 48, six corner reflectors 7-12, two reflective mirrors 37 and 47, nine translucent mirrors 38-46, seven controlled optical attenuators 28-33, six optical switches 21-26. The control input of the laser generator, the outputs of all photodetector units and both laser radiation meters, as well as the control inputs of all controlled spectral filters, controlled optical attenuators, optical switches and the displacement unit are connected to the control and processing unit.

EFFECT: increased sensitivity in the determination of uranium in technical environments of nuclear power plants.

5 cl, 4 dwg