A fast-response high-temperature high-pressure surface thermocouple

Abstract The active portion of this transducer consists of a classical thermocouple made up of two thin wires (W5Re and W26Re) embedded in fused alumina. The electrical contact at the hot junction is provided by a thin film of molybdenum. The measured response (1 ms or less) obtained under dynamic conditions of temperature and pressure (explosion) is in agreement with the values calculated by a computer simulation.