Balance based on the principle of the electromagne

专利名称：Balance based on the principle of the

electromagnetic compensation of force withoptical position sensor

发明人：Gunther Maaz,Udo Wedeken,Eduard

Bierich,Eberhard Stadler

申请号：US07/136413申请日：19871222公开号：US04825968A公开日：19890502

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

申请人：SARTORIUS GMBH

代理人：Eric P. Schellin

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