A Flextensional Transducer Prototype with PVDF Piezoelectric Film
Jingjing Liu, Lei Qin, Likun Wang, Chao Zhong, Bin Zhang, Chuanxin Gu, Dan Long · Applied Mechanics and Materials · 2014
This paper presents a prototype of a new flextensional transducer with PVDF (Polyvinylidene Fluoride) piezoelectric film instead of metallic shell. Resonance frequency, bandwidth, transmitting voltage response, and horizontal directivity of the flextensional transducer with PVDF piezoelectric film were respectively measured by using laser-scanning vibrometer, and underwater acoustic measurement system. Experimental results showed that the new transducer features effectively conversion from longitudinal vibration of piezoelectric stack into radial vibration of PVDF piezoelectric film.