Abstract：The bioaerosol detector monitors the existence and quantity of biological particles based on the principle of laser-induced fluorescence, and its development is of great significance to the early warning of public health and national defense security. Through designing and constructing a calibration device, the colony counting method is used to evaluate the key technical indicators of the bioaerosol detector after nebulizing the bacteria liquid,and the effects of bacterial species, bacterial solution concentration and fluorescence intensity on the monitoring results are studied. The results show that bioaerosol produced in the calibration device is sufficiently uniform and stable. The aerosol concentration is determined by the colony counting method, and the calibration of the bioaerosol detectors is initially realized.
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2021, Vol. 42 
