Real-time signal processing method for obtaining charge distribution on aerosols produced by medical inhalers

Lu Zhang*, Janusz Kulon

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The paper discusses a novel noninvasive method of measurement of a charge level on a population of particles using Phase Doppler Anemometry (PDA). The PDA system is used to track the motion of charged particles in the presence of an electric field. By solving the equation of particle motion in a viscous medium combined with the simultaneous measurement of its size and velocity, the magnitude as well as the polarity of the particle charge can be obtained. A signal processing scheme based on Phase Locked Loop has been proposed to obtain the particle charge in real time. A MATLAB/SIMULINK model has been implemented and tested in the range particle velocities of 10 similar to 320mm/s and corresponding particle charge levels from several electrons to the Gaussian Limit.

Original languageEnglish
Title of host publication4th IEEE/EMBS International Summer School and Symposium on Medical Devices and Biosensors, 2007. ISSS-MDBS 2007
PublisherInstitute of Electrical and Electronics Engineers
Pages69-+
Number of pages2
ISBN (Print)978-1-4244-1345-4
DOIs
Publication statusPublished - 8 Oct 2007
Externally publishedYes
Event4th IEEE/EMBS International Summer School and Symposium on Medical Devices and Biosensors - Cambridge
Duration: 19 Aug 200722 Aug 2007

Conference

Conference4th IEEE/EMBS International Summer School and Symposium on Medical Devices and Biosensors
CityCambridge
Period19/08/0722/08/07

Keywords

  • DEPOSITION
  • PARTICLES
  • LUNG

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