Dielectric polarization and reaction temperature of reactive plastics materials measurement system has foil for protection of capacitive measurement field and heat bridge for temperature sensor
The sensor assembly forms the flat bottom of a tube (5) containing the plastics mixture (7). A thin foil (4) protects the capacitive field sensor (1) from the plastics without interfering with the electrical field (6). The capacitive field sensor consists of a set of interdigitating conductive bars. - A heat bridge (3) in the center conducts heat from the plastics to a temperature sensor (2) under the capacitive field sensor. There is a heater or cooler (8) under the support for the capacitive field sensor and an electric socket (9) for the temperature sensor and the capacitive field sensor.