Aerosol Measurement by Induced Currents

被引:73
作者
Fierz, Martin [1 ,2 ]
Meier, Dominik [1 ]
Steigmeier, Peter [2 ]
Burtscher, Heinz [2 ]
机构
[1] Naneos Particle Solut LLC, Windisch, Switzerland
[2] Univ Appl Sci Northwestern Switzerland, Inst Aerosol & Sensor Technol, CH-5210 Windisch, Switzerland
关键词
SURFACE-AREA; CALIBRATION; PARTICLES; CHARGE;
D O I
10.1080/02786826.2013.875981
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
We introduce a new electrical measurement technique for aerosol detection, based on pulsed unipolar charging followed by a non-contact measurement of the rate of change of the aerosol space charge in a Faraday cage. This technique, which we call "aerosol measurement with induced currents," has some advantages compared to the traditional method of collecting the charged particles on either an electrode or with a particle filter. We describe the method and illustrate it with a simple and miniature (shirt-pocket-sized) instrument to measure lung-deposited surface area. Aerosol measurement by induced currents can also be applied to more complex devices. Copyright 2014 American Association for Aerosol Research
引用
收藏
页码:350 / 357
页数:8
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