| 摘要 |
The device, which for example can be applied to conveyor of bulk materials, small pieces or the like, comprises: a first means: consisting of a device (5, 10), which can measure the resonance frequency, the phase and the oscillation amplitude of the mass oscillating system; a second means: consisting of a control device, which independently adjusts the excitation frequency to the natural frequency of the mass oscillating system and feeds the excitation energy at the optimal time and in the necessary amount to the magnetic drive (5, 4) to bring the system to the desired oscillation amplitude with minimal energy. Consequently, as a rule resonance adjustment of the mass oscillating system can be dispensed with from now on, since the device independently adjusts to the resonance with an excitation frequency.
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