一种采用PVDF压电薄膜的弯张换能器

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (3) : 129-134.

论文

一种采用PVDF压电薄膜的弯张换能器

刘静静 1，秦雷 1，王丽坤 1，谷传新1，仲超 1，张彬 1，龙丹 1

作者信息 +

Flextensional transducer base on PVDF piezoelectric film

Jing-jing Liu 1 Li-kun Wang 1 Lei Qin1 Chao Zhong1 Bin Zhang1 Dan Long1

Author information +

文章历史 +

摘要

本文提出了一种采用PVDF压电薄膜代替弯张换能器的金属外壳的新型弯张换能器，即一种采用PVDF压电薄膜的弯张换能器。用阻抗分析仪、激光扫描测振仪和水声测量系统分别测量了采用PVDF压电薄膜的弯张换能器的谐振频率、带宽、发送电压响应、水平指向性。通过对比分析实验结果，可以看出该新型换能器与传统换能器一样可以将压电晶堆纵的振动转化为壳体的径向振动。

Abstract

A novel kind of flextensional transducer base on PVDF piezoelectric film had been proposed in this paper. The metal shell in the traditional flextensional transducer was replaced by the PVDF film. This new kind of flextensional transducer was tested by the impedance analyzer, the laser scanning vibrometer and an underwater acoustic measurement system to characterize the resonant frequency, bandwidth, the transmitting voltage response and the directivity. The test results show that this new kind of flextensional transducer has the ability to converse the longitudinal vibration of piezoelectric stack into the radial vibration of the PVDF film as the traditional flextensional transducer does.

导出引用

刘静静 1，秦雷 1，王丽坤 1，谷传新1，仲超 1，张彬 1，龙丹 1. 一种采用PVDF压电薄膜的弯张换能器[J]. 振动与冲击, 2016, 35(3): 129-134

Jing-jing Liu 1 Li-kun Wang 1 Lei Qin1 Chao Zhong1 Bin Zhang1 Dan Long1 . Flextensional transducer base on PVDF piezoelectric film[J]. Journal of Vibration and Shock, 2016, 35(3): 129-134

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