关键词: 磁致伸缩, 换能器, 性能, 振子

Abstract: Based on the velocity equation and its general solution of the uniform cross-sectional bar which vibrates longitudinally, the frequency equation of the bar-type magnetostrictive transducer vibrator is derived. The distributions of its vibration velocities and stresses, and the ratio of its two end velocities are analyzed. The design problem of the transducer vibrator are discussed under the conditions with optimal impedance match. In the end, a typical real example is given.

Key words: Magnetostriction, Performance, Transducer, Vibrator