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    • 43. 发明公开
    • Driver for piezoelectric actuator and shutter control device utilizing piezoelectric device
    • 驱动压电致动器和用于使用压电元件的闭合的控制装置。
    • EP0696069A3
    • 1998-03-04
    • EP95202708.4
    • 1992-03-11
    • NIKON CORPORATION
    • Goto, TetsuroKatayama, AkiraTanabe, YoshiakiHasuda, Masanori
    • H01L41/04H01L41/09G03B9/08G03B7/083
    • H02N2/06G03B7/10G03B9/18H02N2/043H02N2/067
    • There is disclosed a driving device for piezoelectric actuator, in which a voltage is applied to a piezoelectric actuator to generate a mechanical deformation therein, thus actuating a mechanical system. In an aspect, the piezoelectric actuator is at first given a voltage of inverse polarity, for generating a displacement in an opposite direction, and then given a voltage of forward polarity, for generating a displacement in the normal functioning direction, thereby actuating the mechanical system. Displacement and acceleration become larger, as the displacement of the actuator takes place from a position in the inverse direction.
    • 有圆盘游离缺失为压电致动器,其中一个电压被施加到压电致动器以在其中产生机械变形,从而致动的机械系统的驱动装置。在一个方面,压电致动器在第一给定极性相反的电压, 为在相反方向上产生位移,然后给定正向极性的电压时,在正常运转方向上产生位移,从而致动所述机械系统。位移和加速度变大,作为致动器的位移从发生 在逆方向上的位置。 在另一个方面中,当检测到压电致动器的电绝缘状态,并且,如果恶化,绝缘的破坏通过在报警产生和/或电压施加的抑制防止。 ,实施例中的绝缘状态从现有技术中致动器的环境湿度鉴定。 在另一个方面,如果检测到的湿度为高电平并可能诱发绝缘破坏时,压电致动器由发热驱动以低电压,以dehumidity。 所以快门控制装置用于照相机,利用压电致动器,是游离缺失盘。
    • 44. 发明公开
    • Driver for piezoelectric actuator and shutter control device utilizing piezoelectric device
    • 驱动压电致动器和用于使用压电元件的闭合的控制装置。
    • EP0696068A2
    • 1996-02-07
    • EP95202707.6
    • 1992-03-11
    • NIKON CORPORATION
    • Goto, TetsuroKatayama, AkiraTanabe, YoshiakiHasuda, Masanori
    • H01L41/04H01L41/09G03B9/08G03B7/083
    • H02N2/06G03B7/10G03B9/18H02N2/043H02N2/067
    • There is disclosed a driving device for piezoelectric actuator, in which a voltage is applied to a piezoelectric actuator to generate a mechanical deformation therein, thus actuating a mechanical system. In an aspect, the electrical insulation state of the piezoelectric actuator is detected, and, if deteriorated, the destruction of insulation is prevented by an alarm generation and/or inhibition of voltage application. In an embodiment, the insulation state is identified from the ambient humidity of the actuator. In another aspect, if the detected humidity is at a high level that may induce destruction of insulation, the piezoelectric actuator is driven with a low voltage, in order to dehumidity by heat generation. Also shutter control devices for camera, utilizing piezoelectric actuator, are disclosed.
    • 有圆盘游离缺失为压电致动器,其中一个电压被施加到压电致动器以在其中产生机械变形,从而致动的机械系统的驱动装置。在一个方面中,当检测到压电致动器的电绝缘状态,并且, 如果恶化,绝缘的破坏通过在报警产生和/或电压施加的抑制防止。 ,实施例中的绝缘状态从现有技术中致动器的环境湿度鉴定。 在另一个方面,如果检测到的湿度为高电平并可能诱发绝缘破坏时,压电致动器由发热驱动以低电压,以dehumidity。 所以快门控制装置用于照相机,利用压电致动器,是游离缺失盘。