Thijssen J M, Verhoef W A, Cloostermans M J
Ultrasonics. 1985 Jan;23(1):41-6. doi: 10.1016/0041-624x(85)90009-5.
The so-called KLM-model for ultrasonic transducers is employed to optimize transducer design. Some new performance characteristics are defined which change monotonically with design parameters. These characteristics are based on the area of the envelope of the echo waveform produced by the transducer and of the corresponding amplitude spectrum. The efficiency of the transducer is defined by the round trip energy factor. The performance characteristics are used in a composite performance measure, which is then employed as a criterion in the optimization procedure. Two transducers are investigated: for medical imaging purposes and for spectral analysis of clinical echograms. The influence of electrical matching, backing impedance, matching layer impedance, bond line thickness and series induction on the optimized transducers is investigated.
采用所谓的超声换能器KLM模型来优化换能器设计。定义了一些随设计参数单调变化的新性能特征。这些特征基于换能器产生的回波波形包络及其相应幅度谱的面积。换能器的效率由往返能量因子定义。性能特征用于复合性能度量，然后将其用作优化过程中的标准。研究了两种换能器：用于医学成像目的和用于临床超声图的频谱分析。研究了电气匹配、背衬阻抗、匹配层阻抗、粘结线厚度和串联电感对优化后的换能器的影响。
