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Design, Characterization, and Analysis of a Miniaturized Piezoelectric Transducer

机译:小型压电传感器的设计,表征和分析

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摘要

For portable or internal body therapeutic applications, a miniaturized ultrasonic transducer with weight, diameter, and length of 0.15g, 2mm, and 10.35 mm, respectively, was developed based on the longitudinal mode. The free vibration resonant frequency of the device is 421 kHz. The maximum input power of 0.45 W, output power of 0.11 W, and sound intensity of 38 W/cm~2 were achieved. Ultrasonic streaming in water and cavitation in silicone oil have been observed. Finite element analysis was used to analyze the electrical, mechanical, and acoustic properties of the transducer and consistent experimental results were showed.
机译:对于便携式或体内治疗应用,基于纵向模式开发了重量,直径和长度分别为0.15g,2mm和10.35mm的小型超声换能器。器件的自由振动共振频率为421 kHz。最大输入功率为0.45 W,输出功率为0.11 W,声音强度为38 W / cm〜2。已经观察到水中的超声流和在硅油中的空化。有限元分析用于分析换能器的电,机械和声学特性,并显示出一致的实验结果。

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