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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Technique for Measurements of Elastic Wave Velocities and Thickness of Solid Plate from Access on Only One Side
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Technique for Measurements of Elastic Wave Velocities and Thickness of Solid Plate from Access on Only One Side

机译：仅从一侧进入即可测量实心板弹性波速度和厚度的技术

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摘要

A novel method is proposed for the simultaneous measurement of longitudinal and transverse wave velocities and the thickness of isotropic solid plates from access on only one side. Line contact transducers were placed on the same side of the specimen, and waveforms were acquired at various distances between the transducers. Longitudinal wave velocity and the thickness of the specimen can be simultaneously determined from the relationship between the transit time of the longitudinal wave mode and the ultrasonic beam path. A least-squares fitting method was employed to increase the accuracy of measurements. Transverse wave velocity also can be determined from the transit time of the mode-converted transverse wave and the corresponding beam path determined by Snell's law. Experimental results for several specimens of different materials as well as different thicknesses show good agreement with those measured by conventional methods.
机译：提出了一种新颖的方法，用于同时测量纵向和横向波速以及各向同性实心板的厚度（仅从一侧进入）。将线接触换能器放置在样品的同一侧，并在换能器之间的不同距离处采集波形。纵向波速度和样本的厚度可以从纵向波模式的传播时间与超声波束路径之间的关系同时确定。采用最小二乘拟合法来提高测量精度。横波速度也可以根据模式转换后的横波的传播时间和由斯涅尔定律确定的相应光路来确定。几种不同材料，不同厚度的样品的实验结果与传统方法测得的结果吻合良好。

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