计量与测试技术2024,Vol.51Issue(2) :1-4.DOI:10.15988/j.cnki.1004-6941.2024.2.001

铂-钯热电偶高温断裂仿真分析研究

Study on High Temperature Fracture Simulation of Platinum Palladium Thermocouple

赵楠 胡艳青
计量与测试技术2024,Vol.51Issue(2) :1-4.DOI:10.15988/j.cnki.1004-6941.2024.2.001

铂-钯热电偶高温断裂仿真分析研究

Study on High Temperature Fracture Simulation of Platinum Palladium Thermocouple

赵楠 1胡艳青2
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作者信息

  • 1. 中国航空工业集团公司
  • 2. 北京长城计量测试技术研究所
  • 折叠

摘要

铂-钯热电偶在稳定性和准确度等技术方面优于传统的铂铑10-铂热电偶和铂铑30-铂铑6热电偶,具有广泛的应用前景.但在试验中,发现Pd电极在高温1100℃以上时容易断裂.因此,本文对热电偶点接触结构应力特性进行仿真分析,并设计两种特殊结构形式的铂-钯热电偶.

Abstract

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

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基金项目

航空科学基金(2017ZD44002)

出版年

2024
计量与测试技术
成都市计量监督检定测试所

计量与测试技术

影响因子:0.175
ISSN:1004-6941
参考文献量16
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