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    Electrodynamic vibrator main features
    2016-09-28 09:25
    1, spring characteristics
    In order to reduce the zero order resonance peak, eliminate the resonance of the spring and reduce the number of nonlinear harmonic distortion, this vibrator adopts two sets of linear spring suspension as a moving coil.
    2, frequency response characteristics
    The moving parts of the vibrator zero order natural frequency is different. The resonant frequencies, the vibration large specimen or using force sensor to measure the frequency response function, the specimen will not affect the test results.
    3, force constant alpha.
    Because each vibrator of coil number of turns, magnetic induction intensity is not completely consistent, so the force constant is a little different from the vibrator, is marked on the force constant of certification in the displacement S = 0, namely the vibrator moving coil in a neutral position testing.
    4, the magnetic field
    Vibrator of rare earth materials - ndfeb magnetic steel used as the magnetic steel. Magnets in the special device after magnetization, after aging treatment, will maintain the stability of the magnetic induction intensity.
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