Platinum rhodium thermocouple principle and selection of platinum-rhodium thermocouple principle is: platinum rhodium thermocouple is based on two different components of the two ends of synthesis loop conductor, not at the same time, when the two junction temperature will produce thermal current in the circuit. If with the work of the reference junction of the thermocouple, when there is a difference in temperature display instrument will indicate the thermocouple thermoelectric potential corresponding temperature value.
platinum-rhodium thermocouple choice: measure the normal temperature during 1200 ~ 1600 ℃ recommend using double platinum rhodium thermocouple ( Platinum rhodium - 30 Platinum rhodium (6) , measure the normal temperature during 1000 ~ 1300 ℃ suggest using single platinum-rhodium thermocouple ( Platinum rhodium - 10 Platinum) , so in the operating temperature range to guarantee the operation life of platinum-rhodium thermocouple, improve the quality of the products.
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