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    • 8. 发明授权
    • Measuring instrument
    • 测量仪器
    • US4610090A
    • 1986-09-09
    • US656649
    • 1984-10-01
    • Thomas Brady
    • Thomas Brady
    • G01B3/46G01B5/02
    • G01B5/02G01B3/46
    • A precision caliper gage to measure an internal or external dimension of a body. The caliper gage provides for quick and easy attachment of measuring components and for automatic interplanar alignment of measuring components as they are attached to the gage. A mainframe has a portion parallel to a longitudinal plane and is adapted for attachment of a pivot member in alignment with the longitudinal plane. A first measuring arm is mountable on the pivot also in alignment with the longitudinal plane. A second measuring arm is mountable on the mainframe in alignment with the longitudinal plane and cooperates with the first arm to measure a dimension. A measurement indicator is mountable on the mainframe with a measurement-responsive indicator stem in alignment with the longitudinal plane and responsive to measuring movement of the first measuring arm. The measurement indicator is positioned in a manner that the linear distance along a base line from a vertical line through a measuring point on the first measuring arm to a vertical reference line through the pivot member is proportional to the linear distance along the base line from the vertical reference line through the pivot member to a vertical line through a measurement-responsive point on the indicator stem.
    • 精密卡尺测量身体的内部或外部尺寸。 测量元件可以快速方便地附接测量元件,并可以在测量元件附着在量具上时进行自动平面对准。 主机具有平行于纵向平面的部分,并且适于将枢转构件与纵向平面对齐。 第一测量臂也安装在枢轴上,也与纵向平面对准。 第二测量臂可安装在主机上,与纵向平面对准,并与第一臂配合以测量尺寸。 测量指示器可安装在主机上,其具有与纵向平面对准的测量响应指示杆,并响应于测量第一测量臂的运动。 测量指示器的定位方式是沿着基线从第一测量臂上的测量点到穿过枢转构件的垂直参考线的基线的直线距离与沿着基线的直线距离成比例 垂直参考线通过枢转构件通过指示杆上的测量响应点到垂直线。