Modification of the ELPI to measure mean particle effective density in real-time

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• 作者：Antti Rostedt ; Marko Marjamä ; ki ; Jorma Keskinen
• 关键词：Impactor ; Density ; Mobility
• 刊名：Journal of Aerosol Science
• 出版年：2009
• 出版时间：September 2009
• 年：2009
• 卷：40
• 期：9
• 页码：823-831
• 全文大小：533 K

文摘

A new modification of electrical low pressure impactor (ELPI) for the particle effective density measurement is presented. The system is capable of real-time operation and it is based on the serial measurement of mobility and aerodynamic diameter. In the studied configuration, a zeroth order mobility analyser is installed inside of the ELPI-instrument. The system is feasible for single modal distributions. For several particle materials and varying size distributions, the measured average density values were within 15 % of the values obtained with a reference method.