| 摘要 |
The invention relates to a device for operating a vibrating unit (1) of a vibration resonator, said device comprising a piezoelectric drive (2) which is connected to the vibrating unit (1), and a retroactive electronic system (3). Said retroactive electronic system (3) excites the piezoelectric drive (2) by means of a periodic excitation signal (20) with rising and falling edges in order to create vibrations. The response signal (21) of the piezoelectric drive (2) is redirected back to the retroactive electronic system (3). The inventive device also comprises at least one peak compensation unit (4) which masks out from the response signal (21) at least one interfering signal (22) created by the recharging process of the piezoelectric drive (2). According to the invention, the peak compensation unit (4) is provided with at least one suppression unit (5, 13) comprising at least one switching element (6, 14). Said suppression unit (5, 13) is controlled by the excitation signal (20) of the retroactive electronic system (3) in such a way that the piezoelectric drive (2) is conductively connected to ground during the rising edges and/or during the falling edges of the excitation signal (20). |
