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A thermocouple thermometer is a temperature-sensing element that converts the temperature signal into a thermal electromotive force signal, and converts it into the temperature of the measured medium through an electrical instrument. If you want to understand the thermocouple thermometer in detail, you must start from the basic composition of the thermocouple. The content introduced by this editor is the composition and structure of the thermocouple thermometer.
From the structural point of view, thermocouples can be divided into three types: ordinary type, armored type, and film type. The basic structure of a thermocouple is a thermal electrode, an insulating material, and a protective tube; and it is used in conjunction with a display instrument, a recording instrument or a computer. Thermocouple thermometers are developed into thermocouples suitable for various environments according to various factors such as the environment and the measured medium in field use.
Thermocouple thermometers are simply divided into assembled thermocouples, armored thermocouples and special thermocouples; according to the use environment, there are high-temperature resistant thermocouples, wear-resistant thermocouples, corrosion-resistant thermocouples, high-voltage resistant thermocouples, and explosion-proof thermocouples. Thermocouples, thermocouples for temperature measurement of molten aluminum, thermocouples for circulating fluidized beds, thermocouples for cement rotary kilns, thermocouples for anode roasting furnaces, thermocouples for high-temperature hot blast stoves, thermocouples for gasification furnaces, and carburizing furnaces Thermocouples, thermocouples for high-temperature salt bath furnaces, thermocouples for copper, iron and molten steel, anti-oxidation tungsten-rhenium thermocouples, thermocouples for vacuum furnaces, platinum-rhodium thermocouples, etc.
In order to ensure that the thermocouple works reliably and stably, its structural requirements are as follows:
(1) The welding of the two hot electrodes that make up the thermocouple must be firm;
(2) The two hot electrodes should be well insulated from each other to prevent short circuit;
(3) The connection between the compensation wire and the free end of the thermocouple should be convenient and reliable;
(4) The protective casing should be able to ensure that the hot electrode is fully isolated from the harmful medium.
In the principle of thermocouple selection, there are also relevant requirements for the structure of thermocouples, so we must understand the knowledge of thermocouple thermometers in all directions, so as to better choose the best thermocouple thermometer. Bring better benefits and help to our work. For more details, please log in to our website for consultation.
