Novel method to classify aerosol particles according to their mass-to-charge ratio—Aerosol particle mass analyser

摘要: A new method to classify aerosol particles according their mass-to-charge ratio is proposed. This works by balancing the electrostatic and centrifugal forces which act on introduced into a thin annular space formed between rotating cylindrical electrodes. Particles having lying in certain narrow range are taken out continuously as an suspension. theoretical framework has been developed calculate transfer function defined of exiting particle flux entering flux. similarity rule derived states that single nondimensional constant determines shape function. To examine feasibility proposed principle, prototype classifier was constructed, mass distribution monodisperse nominally 0.309 μm diameter measured. The peak structures corresponding singly, doubly, triply charged were identified experimental spectra. difference theory experiment location for singly about 6.5% terms mass, or 2.3% diameter.