Anti-Stokes Raman laser radar system and method for detecting biological aerosol

• Main Authors: HUA DENGXIN, MAO JIANDONG, RAO ZHIMIN, ZHAO HU, ZHOU CHUNYAN, GONG XIN
• Format: Patent
• Language: Chinese; English
• Published: 27.09.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses an anti-Stokes Raman fluorescence laser radar system for detecting biological aerosol, which comprises a solid pulse laser, ultraviolet laser pulses generated by the solid pulse laser are contacted with substances contained in the atmosphere to generate atmosphere echo signals, the atmosphere echo signals are transmitted to a convex lens through a multimode optical fiber after being received by a telescope, and the convex lens is used for detecting the biological aerosol. A total reflection lens A and a grating are sequentially arranged in front of the optical path of the convex lens, the grating divides the atmospheric echo signal into three paths of signals, and the three paths of signals are collected to a computer after being processed by three paths of signal processing optical paths respectively. The invention also discloses a method for all-time detection of the biological aerosol by using the anti-Stokes Raman laser radar system. By adopting the method and the system, the measu