发明名称 Inductive position indicator for monitoring the relative positions of two mutually movable bodies
摘要 An inductive position indicator has an exciter coil for generating a magnetic flux, a measurement coil arrangement, and a flux guide of ferromagnetic material which provides for the magnetic flux a closed measurement path which includes at least one gap, in the region of which the measurement coil arrangement is so positioned that the magnetic flux passing therethrough changes in dependence on the position to be monitored. To improve the fidelity of the characteristic and enhance measurement accuracy, the flux guide provides at least one further closed compensating path which carries the magnetic flux passing therethrough, past the magnetic coil arrangement. When there are two mutually adjacent measurement coils through the surfaces of which the measurement flux can pass in a variable fashion and the output signal difference of which is included in the position signal, the surfaces enclosed by the measurement coils have at least one common edge portion over which the measurement flux can move.
申请公布号 US5323109(A) 申请公布日期 1994.06.21
申请号 US19920872459 申请日期 1992.04.23
申请人 MEHNERT, WALTER 发明人 MEHNERT, WALTER;THEIL, THOMAS
分类号 G01D5/20;G01D5/245;G01P3/488;(IPC1-7):G01B7/14;G01B7/30 主分类号 G01D5/20
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