LASER DETECTION SYSTEM AND METHOD Russian patent published in 2020 - IPC G01N21/3504 

FIELD: monitoring and measuring equipment.

SUBSTANCE: invention relates to a laser detection system and method, for example, to a system and a method for analyzing gases based on laser absorption spectroscopy. Disclosed laser detection system comprises: a plurality of lasers (18), wherein each laser is configured to output corresponding laser radiation beam for absorption by one or more different connections, wherein said plurality of lasers (18) is configured to output a plurality of laser radiation beams; sample cuvette (10) for containing a certain volume of the gas sample; at least one guide device configured to direct laser radiation beams into sample cuvette (10), wherein said at least one guide device is configured to direct laser radiation beams along a common optical path into sample cuvette (10), and detector device (24) for detection of output radiation from cuvette. Said at least one guide device comprises a plurality of optical components (20), arranged so that for each laser radiation beam corresponding at least one of optical components is configured to direct said laser radiation beam along common optical path. Said plurality of optical components (20) are arranged in series substantially along a straight line and are made so that during operation each optical component directs laser radiation beam from corresponding laser in same propagation direction along said straight line for connection to said common optical path. At least one optical component from said plurality of optical components (20) directs or provides passage of one or more laser radiation beams (s) from said plurality of laser radiation beams from the preceding optical component (s) in sequence in the same propagation direction along said straight line. Laser detection system further comprises controller (26) configured to control said plurality of lasers (18), in order to excite pulsation of at least one of said plurality of lasers (18).

EFFECT: technical result is improvement of devices for continuous monitoring of emissions for monitoring pollution of industrial production in various production facilities with simultaneous simplification of design.

21 cl, 1 tbl, 3 dwg