Method for evaluating performance of bioaerosol samplers

By regulating temperature, humidity, and cleanliness within an airtight calibration chamber, and combining a fixed-track sled sampling vehicle with standard aerosols, a comprehensive performance evaluation of the bioaerosol sampler was achieved. This solved the problems of multi-point sampling and coordinated environmental control in existing technologies, and improved the stability and accuracy of the sampler.

CN122108881APending Publication Date: 2026-05-29中国人民解放军联勤保障部队药品仪器监督检验总站
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Patent Information

Application Number
CN202610073064.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-20
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing bioaerosol samplers have shortcomings in multi-point sampling capability, spatial uniformity control, rapid medium switching, coordinated control of pressure and environment, background self-cleaning, and maintenance and lifespan information management, resulting in low calibration efficiency and unstable results.

Method used

Within a calibration chamber where airtightness meets preset standards, standard aerosols containing the target tracer are generated and homogenized by adjusting temperature, humidity, air pressure, and air cleanliness. Dynamic sampling is then performed using a track-guided sled sampling vehicle, and data is compared and analyzed by comparing the samplers, including calibration of sampling flow rate, timing error, sampling efficiency, and microbial survival rate.

Benefits of technology

A stable and unified testing environment was built, which improved the reliability and accuracy of performance evaluation, comprehensively evaluated the key performance indicators of the sampler, ensured the consistency and representativeness of the sampler in different spatial locations, and improved the overall performance of the sampler and the efficiency of bioaerosol collection.

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Abstract

The application relates to the technical field of performance evaluation of a biological aerosol sampler, and provides a biological aerosol sampler performance evaluation method, which comprises the following steps: environment construction: adjusting and maintaining the temperature, humidity, air pressure and air cleanliness in a calibration cabin to a preset target range; aerosol generation and homogenization: generating standard aerosols containing a target tracer in the calibration cabin, and mixing the air in the cabin to form a test aerosol environment with uniform spatial concentration distribution in a sampling area; dynamic sampling: making the detected sampler and a comparative sampler sample at multiple different spatial points in the calibration cabin; data comparison and analysis: performing performance calibration on the detected sampler according to the sampling data of the detected sampler and the comparative sampler. The environment conditions highly close to actual application scenarios are constructed, and the comprehensive performance of the biological aerosol sampler can be scientifically, systematically and quantitatively evaluated and calibrated.
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