|Title:||A Miniature system for separating aerosol particles and measuring mass concentrations||Authors:||Liang, Dao
Dai, Chi-AnLiang, D.
|Keywords:||Aerosol particle; Microbalance sensor; Virtual impactor||Issue Date:||2010||Journal Volume:||10||Journal Issue:||4||Start page/Pages:||3641-3654||Source:||Sensors||Abstract:||
We designed and fabricated a new sensing system which consists of two virtual impactors and two quartz-crystal microbalance (QCM) sensors for measuring particle mass concentration and size distribution. The virtual impactors utilized different inertial forces of particles in air flow to classify different particle sizes. They were designed to classify particle diameter, d, into three different ranges: d < 2.28 μm, 2.28 μm ≤ d ≤ 3.20 μm, d > 3.20 μm. The QCM sensors were coated with a hydrogel, which was found to be a reliable adhesive for capturing aerosol particles. The QCM sensor coated with hydrogel was used to measure the mass loading of particles by utilizing its characteristic of resonant frequency shift. An integrated system has been demonstrated. © 2010 by the authors.
|ISSN:||14248220||DOI:||10.3390/s100403641||metadata.dc.subject.other:||Aerosol particles; Different particle sizes; Integrated systems; Mass concentration; Microbalance sensors; Particle diameters; Resonant frequency shift; Virtual impactors; Aerosols; Hydrogels; Natural frequencies; Quartz crystal microbalances; Particle size|
|Appears in Collections:||機械工程學系|
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