The diameter of the platinum-rhodium thermocouple wire is specified as 0.5mm, and the allowable deviation is -0.015mm. The chemical composition of its positive electrode is the platinum-rhodium alloy, which contains 30% rhodium and 70% platinum, and the negative electrode is also platinum-rhodium alloy with 6% rhodium content, so it is commonly known as the double platinum-rhodium thermocouple. The long-term maximum use temperature of the platinum-rhodium thermocouple is 1600℃, and the short-term maximum use temperature is 1800℃.
https://www.samaterials.com/content/platinum-rhodium-thermocouples.html
No comments:
Post a Comment