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Particle mass analyser is a measurement technique for classifying aerosol particles according to their mass-to-charge ratio. Techniques exist for classifying (selecting) aerosol particles in the sub 1,000 nm range according to electrical mobility using devices such as differential mobility analysers. In electrical mobility measurement, aerosol particles are classified according to their aerodynamic drag-charge ratio. If the particle is non-spherical, the electrical-mobility diameter will not correspond to any measurable physical dimensions of the particle. (For a spherical particle, the electrical-mobility diameter will correspond to physically measurable diameter.) An alternative technique classifies particles according to their mass:charge ratio, using opposing electrical and centrifugal forces. This allows the classifier to select particles of a specified mass:charge ratio, as described by Ehara et al. independent of particle shape. Further work on the technique described by Ehara et al. was described by Olfert and Collings ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Particle mass analyser」の詳細全文を読む スポンサード リンク
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