| 安德森六级撞击采样器采集效率评价方法研究 |
| |
| 引用本文： | 刘佳琪,张国城,吴丹,霍胜伟,荆文杰,沈上圯,田莹. 安德森六级撞击采样器采集效率评价方法研究[J]. 计量学报, 2022, 43(6): 825-829. DOI: 10.3969/j.issn.1000-1158.2022.06.18 |
| |
| 作者姓名： | 刘佳琪 张国城 吴丹 霍胜伟 荆文杰 沈上圯 田莹 |
| |
| 作者单位： | 北京市计量检测科学研究院,北京100029 |
| |
| 基金项目： | 国家质量基础的共性技术研究与应用国家重点研发计划(2017YFF0205504);国家市场监督管理总局科技计划项目(2021MK003);中国博士后科学基金(2019M660538) |
| |
| 摘 要： | 研究了适用于安德森六级撞击式空气微生物采样器的采集效率评价方法,并搭建了评价系统。将不同粒径的单分散聚苯乙烯微球雾化形成气溶胶,使用空气动力学粒径谱仪分别对采样器上、下游的颗粒物数量浓度进行测量,测量出采样器各级的采集效率,从而计算出采集效率为50%时的空气动力学直径Da50。通过对国产某品牌的6级安德森空气微生物采样器进行评价,测得1~6级的Da50分别为7.2,6.7,4.7,2.9,1.5,0.8μm。
|
| 关 键 词： | 计量学 安德森采样器 气溶胶 采集效率 空气动力学直径 |
| 收稿时间： | 2021-02-05 |
Study on Evaluation Method of Acquisition Efficiency of Anderson Six-stage Impact Sampler |
| |
| Affiliation: | Beijing Institute of Metrology, Beijing 100029, China |
| |
| Abstract: | The acquisition efficiency evaluation method suitable for Anderson air microorganism sampler was studied, and the evaluation system was established.The monodisperse polystyrene microspheres with different particle sizes were atomized to form aerosols, and the concentration of particles above and downstream of the sampler were measured utilizing aerodynamic particle size spectrometer.The collection efficiency at all levels of the sampler were measured, so as to calculate the aerodynamic diameter Da50 when the collection efficiency was 50%.According to the evaluation results of the domestic six-stage Anderson air microorganism sampler, the Da50 values of the 1st to 6th stage were 7.2,6.7,4.7,2.9,1.5,0.8μm, respectively. |
| |
| Keywords: | metrology Anderson sampler aerosol acquisition efficiency aerodynamic diameter |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《计量学报》浏览原始摘要信息 |
|
点击此处可从《计量学报》下载全文 |
|
