Position sensor for detecting angular position

Details Position sensor for detecting angular position Position sensor for detecting angular position

1987-03-19

1989-03-07

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Displacement

123617, 1231465A, 324262, G01B 730

Patent

active

048109673

ABSTRACT:
A light, compact angle-of-rotation sensor is provided that is comprised of a magnetic ring bonded to a shaft by means of resin. The magnetic ring is provided around its periphery with a number of magnetized zones, with each such magnetized zone having a different number of magnetic poles, and magnetic interference between magnetized zones is prevented by leaving non-magnetized spaces between the magnetized zones. The prevention of magnetic interference can be further enhanced by the provision of non-magnetized portions between the magnetic poles of the magnetized zones.

REFERENCES:
patent: 4053826 (1977-10-01), Wasawa et al.
patent: 4274053 (1981-06-01), Ito et al.
patent: 4319188 (1982-03-01), Ito et al.
patent: 4401944 (1983-08-01), Narimatsu et al.
patent: 4589038 (1986-05-01), Radtke
patent: 4599561 (1986-07-01), Takahashi et al.
patent: 4649342 (1987-03-01), Nakamura

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