Platinum-palladium thermocouples are superior to traditional platinum-rhodium 10-platinum thermo-couples and platinum-rhodium 30-platinum-rhodium 6 thermocouples in terms of stability and accuracy,and have a wide range of application prospects.However,in the test,it was found that the Pd electrode was easy to break when the high temperature was above 1100℃.Therefore,in this paper,the point contact structural stress characteris-tics of the thermocouple are simulated and analyzed,and two special structures of platinum-palladium thermocou-ples are designed.
关键词
铂钯热电偶/高温断裂/应力特性/仿真分析/结构设计
Key words
platinum palladium thermocouple/failure at high temperature/stress characteristics/simulated and ana-lyzed/structural design