Very high magnetostrictive strains are observed in Terfenol-D. The material can produce high forces, and give fast precisio motions without backlash. The high magnetomechanical coupling factor means that it can efficiently convert electric energy into mechanical energy and vice versa. The unique properties of Terfeol-D makes it favorable where high energy desities and low frequencies are needed e.g. in powerful long-range sound projectors.
KeywordsTest Tank Active Sonar Naval Postgraduate School Transfer Pressure Acoustical Interaction
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