Bioaerosol particle size grading device, apparatus and storage medium

Abstract

The invention relates to a bioaerosol particle size grading device, which comprises an air chamber for transmitting scattered light to a scattered light pulse acquisition unit, and an optical path processing unit for collecting fluorescence obtained by irradiating particles of the bioaerosol with detection light and transmitting the fluorescence to a fluorescence pulse acquisition unit; the scattered light pulse acquisition unit converts scattered light into scattered light pulse signals and transmits the scattered light pulse signals to the digital processing unit; the fluorescence pulse acquisition unit converts fluorescence into a fluorescence pulse signal and transmits the fluorescence pulse signal to the digital processing unit; and the digital processing unit obtains particle size grading information of the bioaerosol according to the scattered light pulse signal and the fluorescence pulse signal. According to the method, the particle size of the bioaerosol particles which cannot be directly measured is evaluated, the particle size of the bioaerosol particles is graded, and the method is more beneficial to analyzing and evaluating the types and characteristics of the bioaerosol particles. The invention further relates to a bioaerosol particle size grading apparatus and a storage medium.

Description

technical field [0001] The invention relates to the technical field of public health safety, in particular to a bioaerosol particle size classification device, device and storage medium. Background technique [0002] In the field of public health, in order to realize real-time online monitoring of biological aerosols in the air, the ultraviolet light excitation fluorescence method is usually used to irradiate the sampled gas with a light source in the ultraviolet or near ultraviolet band. If there are biological particles, it will excite fluorescence. By detecting the fluorescence information, the bioaerosol content, particle size and other characteristics are analyzed. However, theoretically, the fluorescence signal intensity excited by existing equipment is only related to the luminescent groups of different biological particles. Different types of biological particles have different luminescent groups, and the excited fluorescence intensity is also different. It is diffic...

AI Technical Summary

Problems solved by technology

However, the intensity of the fluorescent signal excited by the existing equipment is theoretically only related to the luminescent groups of different biological particles. Different types of biological particles have different luminescent groups, and the intensity of the excited fluorescence is also different. It is difficult to judge by the fluorescence intensity. Bioparticle size

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