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- W3197856508 abstract "A nonlinear driving manner of transducer driven by the Fe-Ga Alloy material known as Galfenol is developed based on the magnetostrictive equation. The Galfenol driving element of transducer which works under the condition without magnetic bias field is designed. A larger driving magnetic field could be gained under the same working current. The optimal operating point of the driving element is studied by numerical analysis software. The simulation results show that when the driving current is 7A, the prestress of the optimal operating point is 37.5MPa. Then a nonlinear driving technique called half-frequency-driving method is introduced through linear simplification under low driving magnetic field. When the driving magnetic field reaches middle to high level, the input electrical signal function is designed to match the magnetostrictive nonlinear constitutive relationship based on the magnetostrictive equation inversion theory. The output of the transducer is assumed to be a simple harmonic wave at first. Then the linear simple harmonic wave is substituted into the nonlinear equation. At last the input electric signal function needed is obtained through inversion. Thus the simple harmonic output of the transducer is realized. A series of advantages including clear model, simple calculation and easyto-obtain parameters are confirmed by this method. It could be used for the study of nonlinear control of other magnetostrictive transducers." @default.
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- W3197856508 date "2021-07-14" @default.
- W3197856508 modified "2023-10-18" @default.
- W3197856508 title "Research on Nonlinear Driving Manner of Fe-Ga Alloy Transducer" @default.
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- W3197856508 doi "https://doi.org/10.1109/coa50123.2021.9520004" @default.
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