Development of Key Technologies of Unattended Atmospheric Aerosol Sampler

The unattended atmospheric aerosol sampler is very important for environmental monitoring under special circumstances, such as radiation monitoring. A design scheme of atmospheric aerosol sampler is introduced, and two key technologies are focused on the design and realization of sampling flow calibration and automatic membrane replacement. According to the design requirements, a number of test experiments have been carried out. The test results show that the sampler implemented with the technologies described in this article can meet the development requirements of atmospheric aerosol sampling.