What Are Ceramic Protection Sheaths?
Ceramic protection sheaths are a ceramic sheath tube covering, often made from technical ceramics such as aluminous porcelain and recrystallised alumina, used to shield a temperature sensor from the environment they are immersed in. They are generally used in temperature sensors at very high temperatures from between 1000 to 1750°C. Some ceramic protection sheaths provide a very high electrical resistance so may be suitable for high voltage applications.
For applications where ceramic protection isn’t suitable, metal protection sheaths can be used up to limited temperatures.
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