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Updated: Feb 22, 2026

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超声波双路径差分法用于通过金属波导测量温度
Yuchen Zhang1, Liang Shan1, Bo Hong1
1Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province, College of Information Engineering, China Jiliang University, Hangzhou 310018, China.
Ultrasonics
|February 20, 2026
概括
这项研究引入了一种新的双路径差分方法,用于使用波浪飞行时间差异测量波导温度. 优化的波导体几何学显著提高了测量精度和分辨率.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
- 工程 工程师 工程师 工程师
背景情况:
- 精确的温度测量在各种工业应用中至关重要.
- 传统的波导温度传感方法在分辨率和准确性方面存在局限性.
- 优化波导体几何形状为性能增强提供了潜在的途径.
研究的目的:
- 为波导温度测量提出和验证一种创新的双路径差分方法.
- 研究波导体几何结构对测量性能的影响.
- 将拟议的方法与现有的传统结构进行比较.
主要方法:
- 一种使用传输波传播和飞行时间差异的双路径差分方法.
- 双通道和螺旋双通道波导结构的设计和模拟.
- 使用6061合金 (0-400°C) 进行有限元模拟和实验验证.
- 对最佳波形的管径比率和声能分布的分析.
主要成果:
- 双通道和螺旋双通道结构的平均分辨率从4°C/10 ns提高到2°C/10 ns和1°C/10 ns.
- 绝对平均误差分别从3.6°C降至1.9°C和1.6°C.
- 与传统结构相比,新结构的测量标准偏差下降了43%和57%.
结论:
- 优化波导体几何是改善温度测量性能的一个有效策略.
- 拟议的双路径差分法提供了更高的分辨率和精度.
- 这些发现表明了波导传感应用中的几何优化潜力.
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