Piezoelectric actuator
    1.
    发明授权
    Piezoelectric actuator 失效
    压电执行器

    公开(公告)号:US5266863A

    公开(公告)日:1993-11-30

    申请号:US951014

    申请日:1992-09-25

    IPC分类号: H01L41/09 H01L41/08

    CPC分类号: H02N2/043

    摘要: A piezo-electric actuator, comprising a flat spring having a plurality of arched side beams, the arched side beams having first and second ends, a central beam having first and second ends and top and bottom surfaces and disposed between the arched side beams, a fixed first end portion connecting the first end of the central beam with the first ends of the plurality of arched side beams, and a free second end portion connecting the second ends of the central beam with the second ends of the plurality of second arched side beams, wherein the arched side beams and the central beam are parallel to each other, and a piezo-electric element affixed to the bottom surface the central beam.

    摘要翻译: 一种压电致动器,包括具有多个拱形侧梁的平板弹簧,所述拱形侧梁具有第一和第二端,中心梁具有第一和第二端以及顶表面和底表面,并且设置在拱形侧梁之间, 将所述中心梁的第一端与所述多个拱形侧梁的所述第一端连接的固定的第一端部以及将所述中心梁的第二端与所述多个第二拱形侧梁的第二端连接的自由的第二端部 ,其中所述拱形侧梁和所述中心梁彼此平行,并且压电元件固定到所述底表面的所述中心梁。

    Photoelectric conversion type rotational position detector
    4.
    发明授权
    Photoelectric conversion type rotational position detector 失效
    光电转换型旋转位置检测器

    公开(公告)号:US4902885A

    公开(公告)日:1990-02-20

    申请号:US286008

    申请日:1988-12-19

    IPC分类号: G01D5/347 G01D5/36

    CPC分类号: G01D5/366

    摘要: A photoelectric conversion-type rotational position indicator for indicating the rotational position of a rotating body, including a light receiving member having one or more identically shaped light receiving portions made from a photoelectric converting material at predetermined spacings on the light receiving member to generate sinusoidal signals out of phase from each other, and a light shielding member operably connected to the rotating body such that the light shielding member rotates with the rotating body, the light shielding member having windows shaped with an inner curve and an outer curve such that the visible area of each light receiving portion through each of the windows varies in a sinusoidal form of one cycle as the light shielding member rotates, and means for obtaining the phased separated sinusoidal signals by connecting groups of light receiving portions in parallel or series.

    摘要翻译: 一种用于指示旋转体的旋转位置的光电转换型旋转位置指示器,包括具有由光接收部件上的预定间隔由光电转换材料制成的具有一个或多个相同形状的光接收部分的光接收部件,以产生正弦信号 彼此异相,以及遮光构件,其可操作地连接到所述旋转体,使得所述遮光构件与所述旋转体一起旋转,所述遮光构件具有形成有内曲面的窗口和外曲线,使得所述可见光区域 通过每个窗口的每个光接收部分在遮光构件旋转时以一个周期的正弦形式变化,以及用于通过平行或串联连接光接收部分组来获得相位分离的正弦信号的装置。