Development of an Automatic Beta Gauge Particulate Sampler with Filter Cassette Mechanism
Development of an Automatic Beta Gauge Particulate Sampler with Filter Cassette Mechanism
复制标题
开发带过滤盒机构的自动 Beta 规颗粒采样器
DOI：
10.1080/027868201753227406
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发表时间：
2001
影响因子：
5.2
通讯作者：
Jin S. Han
中科院分区：
文献类型：
--
作者：
Seungshik Park;Young J. Kim;Kyeongkyun Lee;K. J. Chun;Jae Young Lee;Y. S. Lim;Jin S. Han
描述了一种用于测量环境空气中气溶胶质量浓度的β规颗粒采样器。仪器在每个采样周期内自动校准两个自校准质量标准，同时以最小的采样死区时间损失连续采样颗粒。基于β辐射衰减的仪器的主要设计特征包括过滤盒机制、自动校准系统、低采样死区时间、高灵敏度和简单的审计程序。该仪器由三个主要部分组成：PM 10入口，机械过滤器运动系统以及控制和数据处理系统。机械过滤器移动系统包括带有过滤盒杂志的颗粒收集系统、g射线测量模块和颗粒采样模块、自动校准系统和流量控制系统。控制和数据处理系统执行过滤盒移动控制、采样泵控制和数据分析。该仪器已在现场进行了测试，并与重量法质量测量结果进行了比较。研制的贝他规仪器已被证明是一种有效的测量工具，用于环境颗粒物质量的测定。
A beta gauge particulate sampler for measuring the aerosol mass concentration in the ambient air is described. The instrument is automatically calibrated with two self-calibration mass standards during each sampling period, while it samples particles continuously with minimum sampling dead-time loss. Key design features of the instrument based on the attenuation of beta radiation include filter cassette mechanism, auto-calibration system, low sampling dead-time, high sensitivity, and straightforward audit procedures. The instrument consists of three main components: PM 10 inlet, mechanical filter movement system, and control and data processing system. The mechanical filter movement system includes particle collection system with filter cassette magazine, g -ray measuring module and particle sampling module, auto-calibration system, and flow control system. The control and data processing system performs filter cassette movement control, sampling pump control, and data analysis. The instrument has been tested in the field to compare the measurement results with those by gravimetric mass measurement. The developed beta gauge instrument has been proved to be an efficient measuring guage for the ambient particulate mass determination.