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1. 发明申请

WO2009021123A1 A SIZE SEGREGATED AEROSOL MASS CONCENTRATION MEASUREMENT DEVICE 审中-公开
标题翻译：尺寸分离式气溶胶质量浓度测量装置
公开(公告)号：WO2009021123A1
公开(公告)日：2009-02-12
申请号：PCT/US2008/072496
申请日：2008-08-07
申请人： TSI INCORPORATED , WANG, Xiaoliang , AGARWAL, Jugal , CHANCELLOR, George, John , EVANSTAD, Jim
发明人： WANG, Xiaoliang , AGARWAL, Jugal , CHANCELLOR, George, John , EVANSTAD, Jim
IPC分类号： G01N15/02 , G01J1/02
CPC分类号： G01N15/1459 , G01N15/0205 , G01N2015/025
摘要： An apparatus and method for estimating size segregated aerosol mass concentration in real time and using a single detector. A beam of electromagnetic radiation is passed through a particle stream made of a test or field aerosol. The single detector outputs an electrical signal proportional to the electromagnetic radiation scattered thereupon. The electrical signal may be conditioned to produce an integrated signal for measuring radiation scattered from all the particles in the interrogation volume, a pulse height from an individual particle within the volume, and/or a time-of-flight measurement from the individual particle. The integrated signal can be correlated to particle mass concentration. The pulse height signal and the time-of-flight signal may be converted to infer the size of the individual particle. Attendant size distributions for the particle sizes may also be obtained. Using known or assumed particle properties, the mass concentration may be estimated from the size distribution.
摘要翻译：一种实时估算尺寸分离气溶胶质量浓度并使用单个检测器的装置和方法。电磁辐射束通过由测试或场气溶胶制成的颗粒物流。单个检测器输出与散射的电磁辐射成比例的电信号。可以调节电信号以产生用于测量在询问体积中从所有颗粒散射的辐射，来自体积内的单个颗粒的脉冲高度和/或来自各个颗粒的飞行时间测量的积分信号。积分信号可以与粒子质量浓度相关。可以将脉冲高度信号和飞行时间信号转换为推断单个粒子的大小。也可以获得颗粒尺寸的助剂尺寸分布。使用已知或假定的粒子特性，可以从尺寸分布估计质量浓度。

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