title: Rare earth ultrasonic transducer technique research.
abstract: Transducer is the necessary and most important part in the maxonics. New applications demand for new transducer, and the renovation of the transducer will open a new field for the application of the maxonics. The important method to develop new transducer is to find and develop new material. The rare earth giant magnetostrictive material Terfenol-D is a new functional material with good performance. In this paper, the rare earth ultrasonic transducer was analyzed theoretically and devised in four-port method and FEM software ANSYS. A rare earth ultrasonic transducer and the transducer with the half wave horn are developed, whose performance has shown unique advantage compared with the piezoelectric transducer.
authors.affiliation: Hangzhou Applied Acoustic Research Institute, Hangzhou road 96, Hangzhou city, Zhejiang Province 310012, PR China. liuwenjingbaby@163.com <liuwenjingbaby@163.com>
authors.forename: Wenjing
authors.initials: W
authors.lastname: Liu
authors.forename: Lisheng
authors.initials: L
authors.lastname: Zhou
authors.forename: Tiejian
authors.initials: T
authors.lastname: Xia
authors.forename: Hongpei
authors.initials: H
authors.lastname: Yu