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Brazilian Journal of Chemical Engineering

Print version ISSN 0104-6632On-line version ISSN 1678-4383


MARRA JR., W.D.  and  COURY, J.R.. Measurement of the electrostatic charge in airborne particles: I - development of the equipment and preliminary results. Braz. J. Chem. Eng. [online]. 2000, vol.17, n.1, pp.39-50. ISSN 1678-4383.

The design and construction of a equipment capable of measuring the electrostatic charges in aerosols, named the electrostatic charge classifier, were carried out. They were based on the concept of particle electromobility and the charge classifier was intended to classify the nature and the distribution of electrostatic charges as a function of particle size. The resulting piece of equipment is easy to dismount, which facilitates its cleaning and transport, and easy to operate. Early results indicate that the values of electrostatic charge measured on test particles are inside the range reported in the literature, indicating the adequacy of the technique utilized.

Keywords : electrostatic charges; charge measurement; electromobility; aerosol particles.

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