Industrial platinum and rhodium thermocouple' target='_blank'>thermocouples are also called precious metal thermocouples. They are used as temperature measurement sensors and are usually used in conjunction with temperature transmitters, regulators and display instruments to form a process control system to directly measure or control various production processes. The temperature of fluid, steam, gaseous medium and solid surface in the range of 0-1800℃. A platinum rhodium thermocouple is a circuit composed of two conductors with different components connected at both ends. When the temperature of the two junctions is different, a thermal current will be generated in the circuit. If there is a temperature difference between the working end of the thermocouple and the reference end, the display instrument will indicate the temperature value corresponding to the thermoelectric potential generated by the thermocouple. The thermoelectric heat of the platinum-rhodium thermocouple will increase as the temperature of the measuring end increases. Its size is only related to the temperature of the thermocouple material and both ends, and has nothing to do with the length and diameter of the thermoelectrode. The appearances of various platinum and rhodium thermocouples are often very different due to needs, but their basic structures are roughly the same, usually composed of main components such as a hot electrode, an insulating sleeve protection tube, and a junction box.
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[拓展名称] include a great variety of devices with a wide range of complexity: from simple RTD supplier used since prehistoric times to the complex of modern mechanized temperature sensor manufacturers.
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