Passive magnetic position sensor

Details Passive magnetic position sensor Passive magnetic position sensor

1994-01-04

1995-08-22

Fulton, Christopher W.

Geometrical instruments

Distance measuring

Scale reading position sensor

33DIG1, 32420724, G01B 700

Patent

active

054428653

ABSTRACT:
A position sensor has an electrically non-conductive substrate with a resistance layer and a conductor track serving as a potentiometer tap arranged parallel thereto, and a second, electrically conductive substrate. At least one substrate is of resilient construction, and at least one of the substrates has a soft-magnetic layer. A magnet is mounted for guidance in the direction of the conductor track, and is located at a constant distance away from the conductive track. The two substrates are spaced apart at a distance allowing contact to be produced under magnetic action. The resistance layer and the conductor track each have structural parts which engage alternately into each other along a path of movement of the magnet.

REFERENCES:
patent: 4586260 (1986-05-01), Baxter et al.
patent: 5074053 (1991-12-01), West
patent: 5187630 (1994-02-01), Geisler

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