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三组压电陶瓷堆叠的级联压电超声换能器分析。

Analysis of a Cascaded Piezoelectric Ultrasonic Transducer with Three Sets of Piezoelectric Ceramic Stacks.

机构信息

Shaanxi Key Laboratory of Ultrasonics, Institute of Applied Acoustics, Shaanxi Normal University, Xi'an 710119, China.

出版信息

Sensors (Basel). 2019 Jan 30;19(3):580. doi: 10.3390/s19030580.

DOI:10.3390/s19030580
PMID:30704087
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6387011/
Abstract

To increase the ultrasonic intensity and power of a piezoelectric transducer, a cascaded piezoelectric ultrasonic transducer with the three sets of piezoelectric ceramic stacks is analyzed. The cascaded piezoelectric ultrasonic transducer consists of four metal cylinders and three sets of piezoelectric ceramic stacks in the longitudinal direction. In analysis, the electromechanical equivalent circuit of the cascaded piezoelectric ultrasonic transducer is obtained, as well as the resonance/anti-resonance frequencies equations. By means of an analytical method, when the position of piezoelectric ceramic stacks PZT-2/PZT-3 changes, the resonance/anti-resonance frequencies and the effective electromechanical coupling coefficient of the cascaded piezoelectric ultrasonic transducer have certain characteristics. Several prototypes of the cascaded piezoelectric ultrasonic transducer are manufactured. The experimentally measured resonance frequencies are in good agreement with the theoretical and simulated results. The cascaded piezoelectric ultrasonic transducer with three sets of piezoelectric ceramic stacks presented in this paper is expected to be used in the field of high power ultrasound.

摘要

为了提高压电换能器的超声强度和功率，分析了一种采用三组压电陶瓷堆叠的级联压电超声换能器。级联压电超声换能器由四个金属圆柱和三组沿纵向的压电陶瓷堆叠组成。在分析中，得到了级联压电超声换能器的机电等效电路以及共振/反共振频率方程。通过解析方法，当压电陶瓷堆叠 PZT-2/PZT-3 的位置发生变化时，级联压电超声换能器的共振/反共振频率和有效机电耦合系数具有一定的特性。制造了几个级联压电超声换能器的原型。实验测量的共振频率与理论和模拟结果吻合较好。本文提出的采用三组压电陶瓷堆叠的级联压电超声换能器有望应用于大功率超声领域。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/6cce56403541/sensors-19-00580-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/48df13838c69/sensors-19-00580-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/453e539d0ce6/sensors-19-00580-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/2e56740dc7d9/sensors-19-00580-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/1777c07d5abb/sensors-19-00580-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/3d19465e1f6c/sensors-19-00580-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/84ee0704ee9c/sensors-19-00580-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/077562ed469d/sensors-19-00580-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/95892bfdc8c5/sensors-19-00580-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/61ca265d3c8a/sensors-19-00580-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/9dfc669c1016/sensors-19-00580-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/868a60cee54f/sensors-19-00580-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/f65db194b629/sensors-19-00580-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/6cce56403541/sensors-19-00580-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/48df13838c69/sensors-19-00580-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/453e539d0ce6/sensors-19-00580-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/2e56740dc7d9/sensors-19-00580-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/1777c07d5abb/sensors-19-00580-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/3d19465e1f6c/sensors-19-00580-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/84ee0704ee9c/sensors-19-00580-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/077562ed469d/sensors-19-00580-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/95892bfdc8c5/sensors-19-00580-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/61ca265d3c8a/sensors-19-00580-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/9dfc669c1016/sensors-19-00580-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/868a60cee54f/sensors-19-00580-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/f65db194b629/sensors-19-00580-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6c6f/6387011/6cce56403541/sensors-19-00580-g013.jpg

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