Thermocouple Feedthroughs are commonly used in temperature measurement systems. They are designed to conduct a thermocouple’s voltage signal from inside the vacuum system to an external controller. MPF creates a hermetic bond between the alumina ceramic and various Thermocouple conductors such as Alumel, Chromel, Iron, Constantan, and compensating wire for Tungsten, Rhenium, Platinum, and Rhodium.