Ultrasonic velocity in the melt at the nozzle or mould can be used
to measure the melt temperature in real time
Melt temperature measured by a thermocouple
Melt temperature measured by ultrasonic probes
Melt pressure monitoring
Melt pressure change can be sensed by the variation of the round-trip travel time of ultrasonic echoes in the ultrasonic buffer rod probe or between the internal and external surfaces of the mould.