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Updated: Sep 10, 2025

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基于相位的热波分析,通过建模和模拟对固体材料的表面缺陷进行横向表征

Botao Ma1, Chen Liu1, Shupeng Sun1

  • 1Department of Engineering Mechanics, School of Civil Engineering, Shandong University, Jinan 250061, China.

Materials (Basel, Switzerland)
|August 28, 2025
PubMed
概括

锁定热谱使用调制的热波来发现地下缺陷. 激发频率影响横向分辨率和深度灵敏度,更高的频率改善了较浅的缺陷的边界定义.

关键词:
有限元素模拟锁定式温度计非破坏性测试地下缺陷检测热扩散长度热波分析

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Standing Waves in a Cavity01:28

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A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
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