Position detector with magnetic scale and magnetic sensor that h

Details Position detector with magnetic scale and magnetic sensor that h Position detector with magnetic scale and magnetic sensor that h

1991-06-04

1994-11-08

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420724, 32420725, 338 32R, G01B 714, G01P 342

Patent

active

053630343

ABSTRACT:
A position detecting apparatus is comprised of a magnetic scale formed by sequentially disposing magnets at a lattice pitch .lambda., and a magnetic sensor disposed in an opposing relation to the magnetic scale so as to become relatively movable to each other, wherein the magnetic sensor includes a plurality of magnetic sensor elements, each having first and second magnetic reluctance elements, the first and second magnetic reluctance elements are spaced apart from each other by 1/6.lambda. in the direction in which the magnets are disposed and connected in series, and the first and second magnetic reluctance elements are disposed so as not to overlap each other as seen from the direction parallel to the direction in which the magnets are disposed.

REFERENCES:
patent: 5216363 (1993-06-01), Masaahi

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