Title :
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
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;
Conference_Titel :
Ultrasonics Symposium, 1990. Proceedings., IEEE 1990
Conference_Location :
Honolulu, HI
DOI :
10.1109/ULTSYM.1990.171371
