Evaluation of transducer window materials
Evaluation of transducer window materials
复制标题
换能器窗口材料的评估
DOI：
10.1121/1.2002334
复制
发表时间：
1975
影响因子：
2.4
通讯作者：
J. Behrens
中科院分区：
文献类型：
--
作者：
E. Mikeska;J. Behrens
对几种材料在垂直入射时的插入损耗和回声减少进行了声学测量，以评估它们在50-500 kHz频率范围内用作水下声换能器窗口的用途。测试的材料包括商业聚氨酯产品，如PR-1527、CPC-19、Scotchcast 221、Scotchcast 8，以及其中一些在固化过程中添加滑石粉以改变密度的材料。声速值从回波衰减数据中导出，并允许确定每种材料的ρc值。回波随频率变化的计算机模型与测量的回波减少图精确匹配。
Acoustic measurements of insertion loss and echo reduction at normal incidence were made for several materials for evaluation of their use as underwater sound transducer windows in the frequency range of 50–500 kHz. Materials tested included the commercial polyurethane products such as PR‐1527, CPC‐19, Scotchcast 221, Scotchcast 8, and some of these materials with talc added during curing to vary the density. Values of sound velocity are derived from the echo reduction data and allow determination of ρc values for each material. A computer model of the echo variation with frequency accurately matches the measured echo reduction plots.