传感技术学报2018，Vol.31Issue(1)：74-77,4.DOI:10.3969/j.issn.1004-1699.2018.01.013
考虑质量吸收系数μm变化的新β射线吸收法 粉尘浓度计算公式研究
Study of a New Formula for Dust Concentration on β-Ray Method Joint Changes of Mass Absorb Coefficient μm
摘要
Abstract
The effect of suction negative pressure on the mass absorption coefficient μm is not considered separately in the existing β-ray absorption method of dust concentration calculation formula. An algorithm for influencing fac-tors ε of mass absorption coefficient of filter membrane was proposed,and a new method for calculating dust concen-tration is deduced. Contrastive experiments ofβ-ray Method and Standard Weighing Method,the new formula of cal-culating the correlation coefficient increased from 0.975 to 0.986,the average error is decreased from 8％ to 3％, Detection accuracy has improved significantly at low concentrations,especially.关键词
环境污染/β射线/质量吸收系数/粉尘浓度Key words
environmental pollution/β-ray/mass absorb coefficient/dust concentration分类
资源环境引用本文复制引用
巫亮..考虑质量吸收系数μm变化的新β射线吸收法 粉尘浓度计算公式研究[J].传感技术学报,2018,31(1):74-77,4.基金项目
项目来源:国家重点研发计划课题项目( 2016YFF0102801) （ 2016YFF0102801）
