Armoured thermocouple mainly has the following characteristics:

1, armoured thermocouple sheathed in refers to the insulation material and metal protective casing like armor wrapped on the outside of the thermocouple wire. Armoured role is to protect the thermocouple wire, increase protective layer on the outside of the thermocouple, such as stainless steel tubes, mesh to prevent the corrosion of acid and alkaline environment.
2, armoured thermocouple can bend, high pressure resistance, heat fast response time and strong and durable and many other advantages.
3, armoured thermocouple as the temperature measurement sensor, usually with temperature transmitter, controller and display instrument, such as process control system, to directly measure or control in the production of a variety of 0 Fluid over a range of 1800 ℃, steam and gas medium and solid surface temperature. Armoured thermocouple has to bend, resistance to high pressure, fast heat response time and strong and durable many advantages, such as it and industrial prefabricated thermocouple, as measure temperature sensor, and display meter, recording meter and electronic regulator usually used.
4, the structure principle of armoured thermocouple is made up of a conductor, high insulation magnesium oxide, coat 1 cr18ni9ti stainless steel protecting tube, after many integrated control. Armoured thermocouple products are mainly composed of terminal block, terminal and armoured thermocouple basic structure, and with various mounting device. Are two different components of conductor on both ends of the welding and form a loop, directly measuring WenDuan call work side, the terminal end is called the cold end, also known as the reference. When work end and reference end there is temperature difference, will produce thermal current in the circuit, connected to display instrument, the instrument will indicate the thermocouple thermoelectric emf generated by the corresponding temperature value. Armoured thermocouple thermoelectric emf will grows with the temperature measuring end, only the size of the thermoelectric emfs and thermocouple temperature difference on both ends of the conductor material and, had nothing to do with hot electrode length and diameter.
5, because the armoured thermocouple materials are generally more expensive ( Especially when using precious metals) And temperature measuring points are far away the distance to the instrument, in order to save armoured thermocouple materials, reduce cost, usually adopt the compensating conductor armoured thermocouple cold end ( The free end) Reaches to the relatively stable control indoor temperature and connected to the meter terminals.