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本文介绍具有不同匹配层材料的超声换能器的研制,用频谱分析仪测量的结果与计算值符合良好。实验表明,对于轻背衬换能器,加单层或多层1/4波长匹配层,对于加大换能器的频带宽度有明显效果。
This article describes the development of ultrasonic transducers with different matching layer materials. The results measured with a spectrum analyzer are in good agreement with the calculated values. Experiments show that, for light-backed transducers, adding a single layer or multi-layer 1/4 wavelength matching layer has a significant effect on increasing the bandwidth of the transducer.