Polymer acoustic matching layer for broadband ultrasonic applications

Polymer acoustic matching layer for broadband ultrasonic applications
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DOI:
10.1121/1.2205127
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发表时间:
2006-06
影响因子:
2.4
通讯作者:
H. Tohmyoh
H. Tohmyoh
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
H. Tohmyoh

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设计了一种聚合物声匹配层,它可以作为水和测试样品之间的频率滤波器,并描述了通过使用所设计的层来控制宽带超声的高频分量的方法。声成像的硅键合样品使用一个非常低的规模的匹配层制作的聚(偏二氯乙烯)的证明,其中层和样品之间的空气间隙被抽空。实验结果表明,该层,这是专为信号放大,工程作为一个宽带滤波器,如预测,以及提供保护,防止水的干声成像。
A polymer acoustic matching layer has been designed that can act as a frequency filter between water and a test sample, and a method for controlling the high-frequency components of broadband ultrasound by using the designed layer is described. Acoustic imaging of a silicon-bonding sample using a very-low-scale matching layer fabricated from poly(vinylidene chloride) is demonstrated, in which the air gaps between the layer and the sample are evacuated. The experimental results show that the layer, which was designed for signal amplification, works as a broadband filter, as predicted, as well as offering protection against water for dry acoustic imaging.