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A J-type thermocouple is a type of temperature sensor that uses the Joule effect principle to measure temperature. It is made of two different metal wires, usually in Iron / Constantan (official designation: iron / copper-nickel.), which are connected at one end to form a junction.
When this junction is exposed to a different temperature than the reference, an electric current is generated that can be measured to determine the temperature.
High temperature range
Type J thermocouples can measure temperatures up to 750 degrees Celsius, making them an appropriate choice for applications that require high temperature measurements.
Stable and reliable
Type J thermocouples are generally considered to be stable and reliable over the long term, making them an appropriate choice for applications that require accurate and reliable temperature measurements over an extended period.
Resistant to environmental influences
Relatively insensitive to environmental temperature variations and electromagnetic influences, they are a suitable choice for applications with changing environmental conditions or high electromagnetic energy.