| 摘要 |
An apparatus for controlling a deflectable head mounted on a bimorph leaf having a detector connected to the latter for detecting a deflection of the bimorph leaf, a drive signal generating circuit for generating a drive signal to deflect the bimorph leaf in response thereto, a combining circuit for combining output signals of the detector and the drive signal generating circuit, a damping signal generating circuit for generating a damping signal to attenuate a distortion of the bimorph leaf that is produced by the deflection of the bimorph leaf, a signal producing circuit for generating a signal corresponding to a variation of the detector that remains after application of the damping signal to the bimorph leaf, and a circuit connected between the signal producing circuit and the combining circuit for compensating and thereby reducing the signal corresponding to the remaining variation of the detector.
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