公开(公告)号：US4291466A

公开(公告)日：1981-09-29

申请号：US75573

申请日：1979-09-14

申请人： Seymour Bell ,  Richard O. Juengel

发明人： Seymour Bell ,  Richard O. Juengel

IPC分类号： G01B7/00 ,  G01B7/12 ,  G01D5/22

CPC分类号： G01D5/2216 ,  G01B7/001 ,  G01B7/12

摘要： A caliper-type transducer for measuring a workpiece includes a pair of non-crossing pivot arms each having a contact end and a transducer end. The arms are interconnected for frictionless pivotal movement by a fixed pivot block and spring members which act to limit the displacement of the arms to complemental displacement in the plane of measurement. One arm carries two reactive elements mounted in spaced opposed relationship such that the transducer end of the other arm may be disposed therebetween to vary the reactances according to movement of the caliper ends which cause corresponding movement in their respective transducer ends. The change in reactances of the reactive elements are differentially sensed as the arms are displaced from an initial position when measuring the workpiece.

摘要翻译： 用于测量工件的卡钳式换能器包括一对非交叉枢转臂，每个具有接触端和换能器端。 臂被互连以通过固定的枢转块和弹簧构件进行无摩擦的枢转运动，弹簧构件用于限制臂在位移测量平面中的互补位移。 一个臂承载两个以间隔相对的关系安装的反应元件，使得另一个臂的换能器端可以设置在它们之间，以根据卡尺端部的运动来改变电抗，这些移动导致它们各自的换能器端部相应的运动。 当测量工件时，臂从初始位置偏移，差动地感测到电抗元件的电抗变化。