D7.3 - Calibration of In-line Acoustic Wave Viscosity Sensors for Measurement of Printing Inks

R. B. Haskell, J. Taku, J. Steichen & B. Witham
A thickness shear mode acoustic wave viscosity sensor has been developed for wide scale use in the flexographic printing industry. The sensor is based on the use of a two-port monolithic crystal filter bulk wave device and the correlation of loss to acoustic viscosity has been successfully used to control the viscosity of printing inks in high volume printing. The operation of the sensor is reviewed and the development of a calibration method to translate...