What are the advantages of platinum crucible thermocouple?

The platinum-rhodium thermocouple is also an important type of thermocouple. Then, in the actual use of the platinum-rhenium thermocouple, does everyone summarize the advantages of the platinum-rhenium thermocouple? In fact, there are different advantages in different fields.

Platinum rhodium thermocouple, also known as high temperature precious metal thermocouple, platinum rhodium platinum platinum rhodium (Platinum rhodium 10-platinum rhodium) and double platinum rhodium (Platinum rhodium 30-platinum rhodium 6) points, they as a temperature measurement sensor, usually with the temperature Transmitters, regulators, and display instruments are used together to form a process control system for direct measurement or control of fluid, vapor, and gaseous media and solid surface temperatures in the 0-1800°C range of various manufacturing processes.

The platinum-rhodium thermocouple has the advantages of highest accuracy, best stability, wide temperature measurement temperature range, long service life, and high temperature measurement upper limit in the thermocouple series.

Suitable for use in oxidizing and inert atmospheres, but also for short-term use in vacuum, but not for use in reducing atmospheres or in metal or non-metal vapor atmospheres.

A distinct advantage of the B thermocouple is that it does not require compensating conductors for compensation because the thermopower is less than 3 μV in the 0 to 50°C range.

Platinum crucible thermocouple inadequacies are thermoelectric power, low thermoelectric power rate, sensitive reading, low mechanical strength at high temperature, very sensitive to pollution, and precious metal materials are expensive, so the one-time investment is relatively large.

The platinum rhodium thermocouple works on the principle that a platinum rhodium thermocouple is formed by joining two conductors of two different components into a loop. When the temperature of the two junctions is different, a thermal current is generated in the loop.

If there is a temperature difference between the working end and the reference end of the thermocouple, the display meter will indicate the temperature value corresponding to the thermoelectric potential generated by the thermocouple.

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