Abstract
In a field of an oceanographic survey, low frequency sound wave is often used because of low attenuation and good propagation characteristic in water. It is well known that flextensional transducer is a typical low frequency underwater source for oceanographic research, utilizing flexural vibration to realize low frequency radiation with small size. However the size of traditional flextensional transducer becomes relative large when the frequency decreases to a few hundred Hertz, and it is still a difficult problem to solve. A new type of class IV flextensional transducer was proposed, and original piezoelectric ceramic stacks were replaced by three groups of small class IV flextensional transducers, resulting in frequency decrease and volume displacement expansion. Make use of ANSYS finite element software, the new class IV transducer was modeled and analyzed. The experimental data showed the frequency of this new transducer design obviously decreased compared with traditional IV flextensional transducer at the same size. Key words: Flextensional transducer; low frequency; small size; Finite Element Method
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
