Evaluation of the Helical Screw Rheometer as an On‐line Viscometer

Abstract

ABSTRACT Measurements with a helical screw rheometer (HSR), which consisted of a helical screw enclosed in a tight fitting barrel, were compared with readings from a cone and plate rheometer. Comparable viscosity measurements were obtained with both instruments using carboxymethylcellulose solutions and tomato products. The HSR had the advantages that it could be more easily used for on‐line measurements and was suitable for fluid food suspensions because it prevented settling or separation of particulates during the measurement.