Measurement of Concentration of Suspension by Electrical Means

Abstract

A measuring device was constructed in an attempt to measure the concentration of sus-pension by a change in the dielectric constant. The dielectric constant of suspension depends on the temperature of the suspension, the flocculation of dispersed particles in the liquid and their sedimentation. Therefore, in this device, temperature control was employed for the test liquid. Also, a shearing velocity was applied to keep constant the measuring conditions of the suspension, throughout the measurement of its dielectric constant. In addition, a micro-computer was used, for the data processing of measurement. The result of the measurement of the concentration for carbon black and etc. using this device proved the applicability of the device.