DEVICE FOR EVALUATING THE SIZE AND POLARITY OF THE CHARGE OF ELECTROSTATICALLY CHARGED, AIR-CONTAINING DUST PARTICLES AND METHOD FOR THEIR OPERATION

摘要

A gas containing dispersed particles with differing electrostatic charges is drawn through a gas channel between opposite charged plates before being split into equal gas flows by a flow divider. The equal gas flows leave the apparatus through exits which can be connected to a particle counter.