Simple apparatus for measurement of size and charge of particle in AC electric field

Author

Katayama, M. ; Murata, Y.

Author_Institution

Sci. Univ. of Tokyo, Japan

Volume

2

fYear

2000

fDate

2000

Firstpage

830

Abstract

We developed a new simple apparatus for measuring both the size and the charge of fine particles from the amplitude and the phase shift of the particle oscillation in AC electric field. This apparatus composed of a digital camera, parallel plate electrodes, a high voltage AC source, an illuminating lamp and a flush lamp. The amplitude and the phase shift of each particle were measured from the image obtained by a digital camera. Measurements for multiple particles are carried out at the same time using this apparatus. The performance of the apparatus was confirmed by using glass beads of 30 μm diameter and toner particles of 10 μm diameter. Both the size and the charge can be measured within a few percent error

Keywords

charge measurement; electric fields; electrodes; image sensors; particle size measurement; 10 mum; 30 mum; AC electric field measurement; amplitude; digital camera; flush lamp; glass beads; high voltage AC source; illuminating lamp; multiple particles; parallel plate electrodes; particle oscillation; particle size measurement; phase shift; toner particles; Charge measurement; Current measurement; Digital cameras; Electric fields; Electric variables measurement; Electrodes; Lamps; Particle measurements; Phase measurement; Size measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2000. Conference Record of the 2000 IEEE

Conference_Location

Rome

ISSN

0197-2618

Print_ISBN

0-7803-6401-5

Type

conf

DOI

10.1109/IAS.2000.881927

Filename

881927