PROBLEM TO BE SOLVED: To provide a driving device of a vibration type actuator which reduces harmonic distortion of a progressive oscillatory wave and enables low noise driving.SOLUTION: A driving device of a vibration type actuator comprises: an electromechanical energy conversion element an elastic member which is joined to the electromechanical energy conversion element and generates mechanical vibrations according to a driving voltage applied to the electromechanical energy conversion element and a movable body which is pressure-welded with the elastic member and is relatively moved by the mechanical vibrations. The driving device of the vibration type actuator includes correction means for correcting the distortion of the wave form of the mechanical vibrations which results from the pressure welding.COPYRIGHT: (C)2014,JPO&INPIT【課題】 進行性振動波の高調波歪を低減し、低ノイズ駆動が可能な振動型アクチュエータの駆動装置を提供する。【解決手段】 電気機械エネルギー変換素子と、前記電気機械エネルギー変換素子に接合され、前記電気機械エネルギー変換素子に印加される駆動電圧に応じて機械振動を発生する弾性部材と、前記弾性部材に圧接され、前記機械振動によって相対移動する移動体とからなる振動型アクチュエータの駆動装置であって、前記圧接により生じる前記機械振動の波形の歪を補正する補正手段を有することを特徴とする。【選択図】 図4
