Comparison of platinum rhodium thermocouple and tungsten rhenium thermocouple

Knowledge of platinum rhodium thermocouple and tungsten rhenium thermocouple. The platinum-rhodium thermocouple is a traditional temperature measuring element with stable thermoelectric performance and strong oxidation resistance. It is suitable for continuous use in an oxidizing and inert atmosphere. The long-term use temperature is 1600°C, and the short-term use temperature is 1800°C. The platinum-rhodium thermocouple has reliable quality and guaranteed detection. Platinum-rhodium is a traditional temperature measuring element with stable thermoelectric performance and strong oxidation resistance. The long-term use temperature is 1600°C and the short-term use temperature is 1800°C. The platinum-rhodium thermocouple adopts a high-purity platinum-rhodium alloy wire in a 99 corundum protective sheath, which has high temperature resistance, accurate temperature measurement and high accuracy. The tungsten rhenium thermocouple is a high temperature thermocouple. It has the advantages of good temperature-electric potential linear relationship, reliable thermal stability, and low price. Matching with the display instrument, it can directly measure the temperature of liquid, steam and gaseous media. It can partially replace platinum-rhodium thermocouples as high-tech metallurgical industry, high-temperature electronic thermoelectric system structural engineering and space vehicles, and ultra-high temperature measurement tools for nuclear reactors. The relationship between the thermoelectric potential of the tungsten rhenium thermocouple and the temperature conforms to the ZBN05003-88 graduation table, which is equivalent to the ASTME696-84 standard. It can be used in the range of 0～2300℃ in vacuum, reduction and inert atmosphere. The tungsten-rhenium couple with a special protection tube can also be used for a long time in an oxidizing atmosphere at 1600℃, and its price is lower than that of platinum-rhodium thermocouples. Do you have a deeper understanding of platinum rhodium thermocouples and tungsten rhenium thermocouples?

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