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使用基于拉格朗日平均值定理的移动辐射阻滞光谱窗口方法测量温度和辐射率算法.
Applied optics
|September 14, 2023
概括
一种新的多光谱辐射方法准确地测量了未知的目标温度和辐射率,没有先前的数据. 这种方法大大减少了计算错误,为材料分析提供了实际的解决方案.
科学领域:
- 物理 物理学 物理
- 热力学是一种热力学.
- 光学工程是指光学工程.
背景情况:
- 多光谱辐射温度计是一种非接触式的温度和辐射率测量方法.
- 未确定的方程系统构成了核心挑战,限制了未知目标的准确性.
- 现有的方法需要先前了解排放率或准确的初始条件,这阻碍了广泛应用.
研究的目的:
- 开发一种用于测量未知目标的非接触温度和辐射率的新方法.
- 克服现有的数值和功能发射率方法的局限性.
- 为辐射温度计中未确定系统提供普遍适用和高精度的解决方案.
主要方法:
- 提出了一种移动辐射阻滞光谱窗的方法.
- 利用拉格朗奇的平均值定理来定义一个辐射阻滞间隔.
- 建立了通用和高精度的约束条件来解决未确定系统.
主要成果:
- 与移动窄带窗口方法相比,模拟实验表明平均温度误差减少了31.0%,辐射率误差减少了30.7%.
- 黑体实验的温度误差约为0.4K,辐射率测量值在0.993-0.999.之间.
- 该方法不需要先前的排放量知识或初始条件.
结论:
- 移动辐射减缓光谱窗方法在辐射温度计方面取得了重大进展.
- 该技术为未知目标提供准确的测量,满足各种物质的实际需求.
- 这种方法提高了非接触温度和辐射率的可靠性和适用性.
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