A Novel Pressure Sensor for Polymer Melts in Capillary Rheometers

Abstract

This article introduces a novel type of pressure sensing device, so-called “Pin-Spring pressure sensor” for measuring the pressure of a polymer melt in capillary theometers. The reliability and efficiency of the sensor are followed by considering its resulting measurements which are compared to those obtained by a standard type of pressure sensor (a diaphragm pressure transducer). It is found that the Pin-Spring sensor is simple and easy in use, low in cost and gives reliable and accurate results.