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(a) Schematic diagram of the ME device made of PZT drum transducer, NbFeB magnet, and Fe-core solenoid. (b) Dimensions of the PZT drum transducer. Arrows show the polarization direction.
Induced voltage as a function of magnetic field at a frequency of 100 Hz for various magnets. The inset presents the comparison between experimental and theoretical ME coefficient as a function of magnet mass.
ME coefficient as a function of frequency for different magnets. The inset shows the dependences of resonance frequency and on magnet mass.
ME output powers density as a function of load resistance at the resonance frequency of 650 kHz for magnet IV.
Parameters for five different magnets.
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