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在异质板结构中的缺陷定位使用几何相变-Lamb波的索引

Guangdong Zhang1, Tribikram Kundu2, Pierre A Deymier3

  • 1New Frontiers of Sound Science and Technology Center, University of Arizona, Tucson, AZ 85721, USA; Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ 85721, USA.

Ultrasonics
|April 5, 2025
PubMed
概括

一种新方法使用几何相变指数 (GPC-I) 来准确地定位复杂异质结构中的缺陷. 这种拓声学传感方法比传统方法提供了更高的灵敏度和稳定性.

关键词:
缺陷定位 缺陷定位几何相位变化指数 (GPC-I)不同质的板状结构结构.最大的峰值值依赖值.拓声学 (TA) 传感传感

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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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