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A method of computing electro-mechanical transfer functions for magnetostrictive functional units

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4 Author(s)
H. Tiberg ; Electr. Power Res. Center, R. Inst. of Technol., Stockholm, Sweden ; A. Bergqvist ; L. Kvarnsjo ; G. Engdahl

Transfer functions of a magnetostrictive functional unit are presented. The functional unit consists of a Terfenol-D rod with a magnetizing coil and a closed magnetic circuit. The rod is modeled by a previously presented simulation model for Terfenol-D rods. In a mathematical formulation of the electromechanical coupling the quality of the magnetic circuit is taken into account when computing transfer functions of the functional unit. Numerical results are presented

Published in:

IEEE Transactions on Magnetics  (Volume:28 ,  Issue: 5 )