公开(公告)号：US4825968A

公开(公告)日：1989-05-02

申请号：US136413

申请日：1987-12-22

申请人： Gunther Maaz ,  Udo Wedeken ,  Eduard Bierich ,  Eberhard Stadler

发明人： Gunther Maaz ,  Udo Wedeken ,  Eduard Bierich ,  Eberhard Stadler

IPC分类号： G01G7/02 ,  G01G7/04 ,  G01G23/00 ,  G01G23/48 ,  G01G7/00

CPC分类号： G01G23/48 ,  G01G7/04 ,  Y10S177/06

摘要： There is disclosed a balance based on the principle of the electromagnetic compensation of force with a cylindrical permanent magnet system, with a magnet cover and with a coil for generating the counteracting force that an emitter and a receiver of the optical position sensor be housed inside the magnet cover. The slit diaphragm of the optical position sensor, which extends from below into the area between emitter and receiver, then forms a compact unit with a carrier, e.g., the end of a translation lever, and with a coil and mutual shifts at temperature changes and temperature gradients occur only to a minimal extent.

摘要翻译： 公开了一种基于电磁补偿原理的圆柱形永久磁铁系统的平衡，其具有磁体盖和用于产生反作用力的线圈，使光学位置传感器的发射器和接收器容纳在 磁铁盖。 光学位置传感器的狭缝光阑从下方延伸到发射器和接收器之间的区域，然后与载体（例如平移杆的端部）形成紧凑的单元，并且在线圈温度变化时相互偏移， 温度梯度仅在最小程度上发生。