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高精度对称自校准表面温度计的设计和应用
Daidong Chen1, Sijun Huang1, Xianjie Liu1
1Chongqing Academy of Metrology and Quality Inspection, Chongqing 401123, China.
The Review of scientific instruments
|September 9, 2024
概括
一种新型的自校准表面温度计通过结合机械设计和神经网络校准来提高温度测量的准确性. 与传统热电偶设备相比,这种增强的温度计提供了卓越的稳定性和可重复性.
科学领域:
- 测温仪测温仪是指温度测量仪.
- 传感器技术 传感器技术
- 计量学 计量学 计量学
背景情况:
- 传统的热电偶表面温度计容易受到人类和环境的影响,限制了测量准确度.
- 现有的硬件校准方法本身就不足以准确地测量表面温度.
研究的目的:
- 设计和验证一个高精度,自我校准的表面温度计,最大限度地减少外部影响.
- 通过机械设计和先进的校准技术的结合,提高温度测量的准确性和可重复性.
主要方法:
- 开发了一种使用弹装载铜基板进行对称的自校准机制,以实现最佳接触.
- 集成了一个防风罩与绝缘材料来控制热交换.
- 在不同条件下对传感器数据进行训练的反向传播神经网络用于软件校准.
- 利用高斯函数进一步提高测量精度.
主要成果:
- 硬件优化将最大误差降低到±1.5°C.
- 拟议的温度计达到0.2°C的最大指示误差,显著超过传统设备 (-2.8至-6.8°C).
- 证明了高稳定性和可重复性,标准偏差为0.2%.
结论:
- 机械设计和神经网络校准的协同组合产生了强大的表面温度计.
- 开发的设备表现出卓越的精度和可重复性,克服了传统表面温度计的局限性.
- 拟议的温度计在缓解环境和操作变化的高度有效,用于精确的温度传感.
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