Ultrasonic sensor for the characterization of colloidal slurries

Author

Parker, D. ; Lec, R.M. ; Pendse, H.P. ; Vetelino, J.F.

Author_Institution

Maine Univ., Orono, ME, USA

fYear

1990

fDate

4-7 Dec 1990

Firstpage

295

Abstract

A bulk wave acoustic sensor capable of measuring PSD (particle size distribution) for both low- and high-concentration slurries has been designed, fabricated, and tested. The principle of operation of the sensor is based on the measurement of the variation of the attenuation of the acoustic wave in the slurry as a function of frequency. The attenuation data are then incorporated into a theoretical model to predict the PSD of TiO₂ particles in the slurry. The sensor is capable of detecting the PSD of the TiO₂ particles with sizes ranging from 0.1 to 10 μm in high-concentration slurries, up to 75 weight percent. A potential application of the sensor is in process control in the manufacture of pigments or slurries for use in paints and paper coatings

Keywords

colloids; detectors; particle size measurement; process control; titanium compounds; ultrasonic applications; ultrasonic measurement; 0.1 to 10 micron; TiO₂ particles; US sensor; attenuation; bulk wave acoustic sensor; colloidal slurries; manufacture of pigments; paints; paper coatings; particle size distribution; process control; Acoustic measurements; Acoustic sensors; Acoustic testing; Attenuation measurement; Frequency measurement; Particle measurements; Sensor phenomena and characterization; Size measurement; Slurries; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1990. Proceedings., IEEE 1990

Conference_Location

Honolulu, HI

Type

conf

DOI

10.1109/ULTSYM.1990.171371

Filename

171371