发明名称 Shaft position detectors with stray magnetic field compensation
摘要 A rotary resolver having a stator housing with electromagnetic coils and a permanent magnetic rotor rotatable therein is improved to provide a resolver system with more precise angular rotor position readings. Interacting system features include a ring of soft magnetic material interposed between north and south magnetic pole structure on the rotor, which is enhanced in performance by a particular one of the soft magnetic materials RSi 24, RNi 8 and RNi 5. Adjustable compensation coil structure in the stator housing interacting with the rotor flux pattern obtains more precise angular readings in different working locations. A digital control system dynamically processes flux compensation information. Resolver units may be positioned at an end of a rotating shaft in a working position for detecting the angular rotation position of the shaft.
申请公布号 US6020737(A) 申请公布日期 2000.02.01
申请号 US19970884130 申请日期 1997.06.27
申请人 WYSS, WALTER 发明人 WYSS, WALTER
分类号 G01B7/30;G01D5/20;G01D5/244;H02K24/00;(IPC1-7):G01B7/30 主分类号 G01B7/30
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