REAL-TIME DETECTION APPARATUS FOR BIOLOGICAL PARTICLE IN ATMOSPHERE AND LIQUID SUBSTANCE FLOWING THROUGH FLOW CHANNEL CELL

摘要

The present invention relates to a real-time detection apparatus for a biological particle flowing through a flow channel cell, which can quickly and surely detect the biological particle in the atmosphere or a liquid substance in real time, the apparatus comprising: a particle introduction unit having a flow channel cell to which a floating particle included in the air introduced from the outside or a particle included in the liquid substance introduced from the outside is introduced; and a particle light measuring unit installed in a casing assembly at a lower end of the particle introduction unit; wherein the particle light measuring unit comprises: an optical chamber (220) having a particle measurement space (S) therein; a beam forming optical system (250) for irradiating a laser beam (L) to a particle introduced into the particle measurement space (S); a beam absorption system (260) for extinguishing the laser beam (L) irradiated from the beam forming optical system (250); a pair of reflecting mirrors (230) disposed within the particle measurement space (S); a particle discharge unit (240) for discharging, to the outside, the air or liquid after interacting with the laser beam (L) in the particle measurement space (S); and a beam separation optical system (270) for simultaneously detecting a fluorescence signal and a scattered light generated by the interaction of the laser beam (L) with the particle in the particle measurement space (S).