两个波长的热量计系统和用于高温测量的光谱热量计的比较
Applied optics
|June 10, 2024
概括
这项研究增强了用于准确高温测量的火表系统. 经过优化后的热度计实现了高稳定性和较少的误差,改善了表面温度的确定.
科学领域:
- 物理 物理学 物理
- 工程 工程师 工程师 工程师
- 材料科学 材料科学 材料科学
背景情况:
- 热度计系统提供使用热辐射的非侵入性温度测量.
- 精确的表面高温测量在各种工业应用中至关重要.
- 现有的火表系统面临的挑战是排放率的变化和背景噪声.
研究的目的:
- 开发和优化一个用于稳定和精确的高温表面测量的火表系统.
- 为了最大限度地减少因排放率变化和背景噪声引起的错误.
- 为了比较使用普朗克模型与对数假设的温度测量准确性.
主要方法:
- 采用双波长的热量计系统进行表面高温测量.
- 实现了变量优化,数据验证和系统校准精度.
- 采用普朗克辐射模型,并将结果与对数假设进行比较.
- 优化了冷却系统,以减少温度读取错误.
主要成果:
- 实现高稳定性 (在1600°C时±2.99°C) 和低误差 (Si传感器<2.29%).
- 使用普朗克模型,在850°C的温度测量误差从5.33%降至0.86%
- 在800-1600°C范围内测量的相关系数超过97%.
- 证实了光谱测火仪系统的温度测定校准曲线.
结论:
- 经过优化后的火表系统可提供稳定且准确的高温表面测量.
- 与对数假设相比,普朗克模型显著提高了准确性.
- 该系统表现出快速响应时间和在广泛的温度范围内减少不确定性.
- 使用光谱金字测量的进一步验证证实了该系统的可靠性.
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