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Updated: Jun 3, 2025

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Fabrication and Testing of Photonic Thermometers
Published on: October 24, 2018
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由于电阻温度探测器自加热而导致的纠正错误的方法,适合工业4.0中的计量学
Jiyun Li1, Hongxing Pei2, Orest Kochan3,4
1College of Modern Information Technology, Henan Polytechnic, Zhengzhou 450046, China.
Sensors (Basel, Switzerland)
|January 8, 2025
概括
这项研究通过减轻自加热错误来提高电阻温度探测器 (RTD) 的准确性. 新的校正方法显著减少了测量不准确性,尽管仍然存在一些局限性.
科学领域:
- 计量学 计量学 计量学
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
背景情况:
- 电阻温度探测器 (RTD) 对于准确的温度测量至关重要.
- 由于工作电流的自热导致RTD测量中的重大错误.
- 现有的校准方法,如电压分隔器和替换,提供了改进,但不能完全解决自热问题.
研究的目的:
- 研究和提出技术,以减轻金RTDs的自我加热错误.
- 评估线性和非线性自热校正方法的有效性.
- 在应用校正方法后估计剩余错误.
主要方法:
- 评估了个别的校准技术,包括电压分隔器,替换和过渡措施.
- 研究了用于纠正自热错误的线性和非线性方法.
- 分析了与纠正方法相关的剩余错误.
主要成果:
- 拟议的校准技术显示了提高RTD准确性的潜力.
- 线性和非线性校正方法都有效地减少了自热错误.
- 估计了剩余错误,这表明完全减轻错误的局限性.
结论:
- 自动加热是金RTD实现高精度的关键限制.
- 校正方法可以显著减少自加热误差,提高测量可靠性.
- 完全缓解自热错误并不总是可以实现的,剩余错误仍然存在.
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