System for sensing the position of a rotating steel shaft includ

Details System for sensing the position of a rotating steel shaft includ System for sensing the position of a rotating steel shaft includ

1990-01-16

1993-04-06

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

295921, 156292, 324164, 324173, G01B 730, G01P 349

Patent

active

052006980

ABSTRACT:
A system for sensing the position of a rotating steel shaft (1), the system comprising an eddy current sensor and a track (3) fixed to the shaft and going past the sensor, the track being constituted by a strip (4) of electrical insulation material having areas of non-ferromagnetic material with good electrical conductivity regularly distributed around the shaft, wherein the face of the strip (4) provided with the areas of non-ferromagnetic material is glued to the shaft (1). This very simple system serves to obtain a signal of larger amplitude.

REFERENCES:
patent: 3243692 (1966-03-01), Heissmeier et al.
patent: 4107601 (1978-08-01), Barmeier, Jr. et al.
patent: 4764767 (1988-08-01), Ichikawa et al.

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