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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Acoustic Matching Layer Films Using B-Stage Thermosetting Polymer Resins for Ultrasound Transducer Applications
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Acoustic Matching Layer Films Using B-Stage Thermosetting Polymer Resins for Ultrasound Transducer Applications

机译：用于超声换能器应用的B阶段热固性聚合物树脂的声学匹配层膜

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摘要

Acoustic matching layer films (MLFs) were fabricated using B-stage thermosetting polymer resins with various volume fractions of alumina and tungsten powders. After making certain thickness MLFs, ultrasonic matching layers were fabricated using a simple molding process. The thickness of the matching layers can be precisely adjusted from several micrometer to hundreds of micrometer, without any grinding process. Experimental values of acoustic impedances of the matching layers were in good agreement with theoretical values calculated by the Devaney model. Using the optimized acoustic matching layer by the MLFs, the maximum intensity and the fractional bandwidth of the ultrasonic transducer were increased by 10% and 37% respectively. The effectiveness of the matching layer using MLFs was successfully verified.
机译：使用具有各种氧化铝和钨粉的各种体积分数的B阶段热固性聚合物树脂制造声学匹配层膜（MLF）。在制造一定厚度的MLF后，使用简单的模塑方法制造超声波匹配层。匹配层的厚度可以精确地从几个微米到数百微米，而没有任何研磨过程。匹配层的声学阻抗的实验值与由Devaney模型计算的理论值吻合良好。使用MLF的优化声学匹配层，超声换能器的最大强度和分数带宽分别增加了10％和37％。使用MLF的匹配层的有效性已成功验证。

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