Experimental Study of Acoustic Properties of (0-3) Composite Materials for Intermediate Layer or Backing of Ultrasonic Transducers
Experimental Study of Acoustic Properties of (0-3) Composite Materials for Intermediate Layer or Backing of Ultrasonic Transducers
复制标题
超声换能器中间层或背衬(0-3)复合材料声学性能的实验研究
DOI：
10.1143/jjap.44.4347
复制
发表时间：
2005
影响因子：
1.5
通讯作者：
K. Imano
中科院分区：
文献类型：
--
作者：
Keisuke Sugawara;M. Nishihira;K. Imano
对超声换能器的中间层或背衬用复合材料的声学性能进行了实验研究。(0-3)复合材料由环氧树脂和钨粉的混合物以各种重量比形成，并测量它们的声学性能。将实验结果与基于弹性波散射理论的不同模型预测的结果进行了比较，以验证测量的声学特性是否与理论估计一致。对于声速，Devaney模型的估计值与实验结果最为接近。复合材料中钨粉的重量分数，具有客观的声学性能，可以很容易地通过理论计算使用Devaney模型估计。
The acoustic properties of composite materials used for an intermediate layer or backing of an ultrasonic transducer are studied experimentally. (0-3) composite materials are formed from a mixture of epoxy resin and tungsten powder for various weight ratios and their acoustic properties are measured. The experimental results are compared with the results predicted by different models, which are based on the elastic-wave scattering theory, to verify if the measured acoustic properties agree with theoretical estimations. For the ultrasonic velocities, the estimations of the Devaney model were closest to the experimental results. The weight fractions of tungsten powder for the composite materials, which have objective acoustic properties, can easily be estimated by theoretical calculations using the Devaney model.