Pen Kem, Inc.

Bruce J Marlow

Philip J Goetz

Tonis Oja

A colloid analyzer is provided employing a relatively low frequency, low power, continuous 'acoustic' wave signal propagated in the direction of spaced electrodes mounted adjacent to the side wall of a chamber or vessel containing a colloid sample. The chamber further comprises a series of probes for respectively sensing the pH, temperature, and conductivity of the sample(s) being analyzed. A piezoelectric transmitter generates the acoustic drive signal. The spaced electrodes in conjunction with an electronic signal processing circuit serves as a receiver and generates an output signal relating to the magnitude and polarity of the zeta potential of the particles being 'acoustically' excited by the drive signal. A computer responsive to the signal processing circuit's output signals and/or the vessel probes' output signals alternately develop a graphical output relating to zeta potential, and/or one relating to the surface charge density of the analyzed colloid for given levels of titration. Optional apparatus is provided responsive to the output of the signal processing circuit for measuring the degree of flocculation of the colloid sample in the vessel.

Growing community of inventors

Carmel, NY, United States of America

Bruce J Marlow