Sherar M D, Foster F S
Ontario Cancer Institute, University of Toronto, Canada.
Ultrason Imaging. 1989 Apr;11(2):75-94. doi: 10.1177/016173468901100201.
Poly(vinylidene fluoride) (PVDF) transducers are well suited for use in high frequency pulse-echo ultrasound systems because of their high bandwidth. We analyze the design parameters of PVDF transducers operating in the 100 MHz range using the KLM transducer model. The effect of backing layers, electrode configuration, transducer surface area and tuning circuits on the insertion loss and pulse-echo response of the transducers are investigated. Using this design procedure, an experimental PVDF transducer is proposed for applications in the 100 MHz range. The transducer is built into a high frequency SMA electrical connector. Insertion loss and pulse-echo response measurements are compared with theoretical predictions.
聚偏二氟乙烯（PVDF）换能器因其高带宽而非常适合用于高频脉冲回波超声系统。我们使用KLM换能器模型分析工作在100MHz范围内的PVDF换能器的设计参数。研究了背衬层、电极配置、换能器表面积和调谐电路对换能器插入损耗和脉冲回波响应的影响。采用这种设计方法，提出了一种用于100MHz范围应用的实验性PVDF换能器。该换能器内置在一个高频SMA电连接器中。将插入损耗和脉冲回波响应测量结果与理论预测进行了比较。
