尘埃粒子计数器计数效率检测研究  

Research on the counting efficiency of Airborne particle counter

作　　者：厉龙 肖坤坤 暴海霞 吴嘉炜 汤文良 Li Long;Xiao Kunkun;Bao Haixia;Wu Jiawei;Tang Wenliang

机构地区：[1]苏州市计量测试院

出　　处：《洁净与空调技术》2024年第3期61-64,共4页Contamination Control & Air-Conditioning Technology

基　　金：国家市场监督管理总局科技计划项目(2021MK038)。

摘　　要：尘埃粒子计数器是洁净室等级监测的关键仪器,计数效率是核心性能指标,针对新版GB/T 25915.1-2021要求,使用标准聚苯乙烯微球按GB/T29024.4实施检测,粒径档设定误差不超过±10%,0.3μm计数效率48%,0.5μm计数效率92%,结果表明计数效率和粒径档设定误差、计数重合损失密切相关,在粒径档设定误差不超过±10%,且检测浓度点不大于最大颗粒计数浓度的25%时,尘埃粒子的计数效率测试结果比较理想。Airborne particle counter is the key instrument for clean spaces monitoring,and counting efficiency is the core performance index.In terms of GB/T 25915.1-2021requirements,tests are performed using standard polystyrene microspheres according to GB/T 29024.4.The results show that the error of particle size setting is less than±10%,the counting efficiency of 0.3μm and 0.5μm is 48%and 92%,respectively.Counting efficiency is closely related to particle size setting error and counting loss.Only when the particle size setting error is less than±10%,and the detection concentration point is also less than 25%of the maximum particle counting concentration,the ideal counting efficiency results could be acquired.

关 键 词：标准聚苯乙烯微球 尘埃粒子计数器 计数效率 检测 

分 类 号：TH724[机械工程—仪器科学与技术]