由于获得的热电异质性而导致的模拟错误
1Detroit Green Technology Institute, Hubei University of Technology, Wuhan 430068, China.
Sensors (Basel, Switzerland)
|August 29, 2024
概括
一种新的热电偶设计,即控制温度场 (TCTF) 的热电偶,显著减少了因不均性引起的错误. 这种先进的热电偶设计最大限度地减少了温度场变化,与传统类型相比,确保了更准确的测量.
科学领域:
- 热电偶技术的热电偶技术
- 测量温度的测量方法
- 材料科学 是一种材料科学.
背景情况:
- 热电偶易发生因材料不均性的错误.
- 传统的热电偶设计难以保持稳定的温度场.
- 不同质性引起的错误可能会对测量准确性产生重大影响.
研究的目的:
- 引入和评估一种新的热电偶设计,以减轻不均性错误.
- 以数学模型和分析控制温度场 (TCTF) 的热电偶与常规类型的性能.
- 在不同温度场条件下量化TCTF的残余误差.
主要方法:
- 使用辅助炉的控制温度场 (TCTF) 的热电偶的开发.
- 构建数学模型以适应K型热电偶的实验数据.
- 在显著的温度场变化下对TCTF和传统K型热电偶进行模拟和分析.
主要成果:
- 该TCTF设计有效地稳定了沿热电偶脚的温度场.
- 数学模型准确地预测了TCTF和传统热电偶的不均性导致的错误.
- 在温度场变化超过7°C时,TCTF的同质性误差明显低于传统热电偶.
结论:
- TCTF代表了一种优越的方法,可以防止由于热电偶不均而导致的错误.
- 传统的K型热电偶可以显示最大的不均性误差高达10.75°C.
- TCTF的设计将最大的不均质误差限制在0.2°C以下,证明了它的高精度.
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