公开(公告)号：US5390424A

公开(公告)日：1995-02-21

申请号：US34770

申请日：1993-03-19

申请人： Andrew G. Butter ,  Adrian C. Welsford ,  David G. Powley ,  David R. McMurtry

发明人： Andrew G. Butter ,  Adrian C. Welsford ,  David G. Powley ,  David R. McMurtry

IPC分类号： G01B5/012 ,  G01B11/00 ,  G01B5/20

CPC分类号： G01B11/007 ,  G01B5/012

摘要： An analogue probe has a fixed structure and a stylus supporting member connected to the fixed structure by three serially mounted pairs of leaf springs interconnected by first and second intermediate members. The stylus supporting member supports an elongate stem upon which a cube, which supports three scales, is mounted. Readheads are mounted on the fixed structure, in register with the scales, to transduce movement of the stylus supporting member in three substantially orthogonal directions. The alignment of the scales about the yaw axis (extending in a direction perpendicular to the plane of the scale) determines the alignment of the measuring axes of the probe, while the straightness of the lines of the scales determines the straightness of the axes.

摘要翻译： 模拟探针具有固定结构，并且触针支撑构件通过由第一和第二中间构件相互连接的三个串联安装的板簧对连接到固定结构。 触针支撑构件支撑细长的杆，其上安装有支撑三个鳞片的立方体。 读数头安装在与秤相对的固定结构上，以便在三个基本正交的方向上转换触针支撑构件的运动。 缩放关于偏转轴（在与刻度平面垂直的方向上延伸）的尺度的对准确定了探针的测量轴的对准，而刻度线的直线度决定了轴的平直度。

公开(公告)号：US5390423A

公开(公告)日：1995-02-21

申请号：US214239

申请日：1994-03-17

申请人： Andrew G. Butter ,  Adrian C. Welsford ,  David G. Powley

发明人： Andrew G. Butter ,  Adrian C. Welsford ,  David G. Powley

IPC分类号： G01B5/012 ,  G01B5/20

CPC分类号： G01B5/012

摘要： An analogue probe 100 includes a fixed structure 110 and a stylus supporting member 112 suspended relative to the fixed structure 110 by three serially connected pairs of leaf springs 114,116,118. Displacement of the supporting member 112 relative to the fixed structure 110 is transduced by three opto-electronic scale and readhead transducers 136,144;138,146;140,148. The distorting effect of bending moments applied to the tip 130 of the stylus 128 upon leaf springs 114,118 is counteracted by an increased spacing between upper ends of leaf springs of a given pair, relative to the spacing between leaf springs at their lower ends; the resulting arrangement forming a trapezium as opposed to a rectangle. This enables longer styli to be employed before distortion of the leaf springs causes failure of the opto-electronic transducers due to unwanted tilting of the supporting member 112.

摘要翻译： 模拟探头100包括通过三个串联连接的板簧114,116,118对相对于固定结构110悬挂的固定结构110和触针支撑构件112。 支撑构件112相对于固定结构110的位移由三个光电尺和读取头换能器136,144; 138,146; 140,148转换。 施加到触控笔128的尖端130上的弯曲力矩对板簧114,118的变形效果相对于其下端的板簧之间的间隔被给定对的板簧的上端之间的间隔增加所抵消; 所形成的布置形成与矩形相反的梯形。 这使得能够使用更长的测针，因为片簧的变形导致由于支撑构件112的不期望的倾斜导致的光电换能器的故障。