Driving apparatus and a recording and/or reproducing apparatus using the
same
    26.
    发明授权
    Driving apparatus and a recording and/or reproducing apparatus using the same 失效
    驱动装置和使用该装置的记录和/或再现装置

    公开(公告)号:US5297130A

    公开(公告)日:1994-03-22

    申请号:US832595

    申请日:1992-02-07

    摘要: A driving apparatus for driving an object comprises a pair of piezoelectric elements, one of them being arranged on the one side of the object while the other of them on the other side of the object, and the respective electrode arrangement directions of the pair of piezoelectric elements being substantially identical to each other, and a control circuit which applies a predetermined voltage across the outer electrodes of the pair of piezoelectric elements respectively, gives an equipotential to the inner electrodes thereof, and causes the pair of piezoelectric elements to drive the object by varying the value of the potential given to the inner electrodes. Hence, the increased amount of a voltage applied to one piezoelectric element is exactly identical to the decreased amount for the other so as to make the extended and contracted amounts of the piezoelectric elements on both sides of the object the same. Consequently, no useless stress is given to the piezoelectric elements for the prevention of the deterioration of the elements to implement a precise fine driving over a long period.

    摘要翻译: 用于驱动物体的驱动装置包括一对压电元件,其中一个压电元件被布置在物体的一侧,而另一个位于物体的另一侧,并且一对压电元件的各个电极排列方向 元件彼此基本相同,并且分别在一对压电元件的外部电极上施加预定电压的控制电路给予其内部电极等电位,并且使一对压电元件通过 改变给予内部电极的电位的值。 因此,施加到一个压电元件的电压的增加量与另一个压电元件的电压的减少量完全相同,从而使物体两侧的压电元件的伸长和收缩量相同。 因此,为了防止元件的劣化,长时间地实现精密的精细驱动,没有给压电元件带来无用的应力。

    Moving apparatus, a moving method and an information detection and/or
input apparatus using the same
    30.
    发明授权
    Moving apparatus, a moving method and an information detection and/or input apparatus using the same 失效
    移动装置,移动方法以及使用其的信息检测和/或输入装置

    公开(公告)号:US5414690A

    公开(公告)日:1995-05-09

    申请号:US328391

    申请日:1994-10-24

    摘要: An apparatus for and a method of moving a probe for causing a physical phenomenon to occur between it and a predetermined object and moving the probe and the object relative to each other to make the probe approach the object. At least one of the probe and the object is driven in a predetermined direction to displace one of the probe and the object in the predetermined direction relative to the other. A physical phenomenon occurring between the probe and the object is detected. At least one of the probe and the object is driven so as to bring the probe and the object close to each other. The driving for the approach of the probe to the object is controlled on the basis of the result of the detection of the physical phenomenon during the driving in the predetermined direction. The specification also discloses an information detection and/or input apparatus using such apparatus and method.

    摘要翻译: 一种用于使探针移动以使其与预定物体之间发生物理现象的装置和方法,并且使探针和物体相对于彼此移动以使探针接近物体。 将探头和物体中的至少一个沿预定方向驱动,以相对于另一个在预定方向上移动探针和物体中的一个。 检测到探针和物体之间发生的物理现象。 探针和物体中的至少一个被驱动以使探针和物体彼此靠近。 基于在预定方向上的驱动期间的物理现象的检测结果来控制探针到物体的接近的驱动。 本说明书还公开了使用这种装置和方法的信息检测和/或输入装置。