Method of manufacturing a position sensor for detecting angular

Details Method of manufacturing a position sensor for detecting angular Method of manufacturing a position sensor for detecting angular

1987-03-19

1989-01-10

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29598, 29607, 1231465A, 26427211, 264275, 26432812, 310 43, 324208, H01F 4102

Patent

active

047963549

ABSTRACT:
A method of manufacturing an angle-of-rotation sensor comprises fabricating a rotating member by providing a shaft coaxially inside a magnetic ring made of ferrite magnetic material or the like, and filling the space between shaft and ring with resin. As the resin is first provided on the outer surface of the magnetic ring, then in the interior, a balance is achieved between tensile stress from within the ring and compressive stress from the outside of the ring, and as a result the ring is not broken or cracked. Thus, with this method it is possible to make the angle-of-rotation sensor small and light.

REFERENCES:
patent: 2104189 (1938-01-01), Cotterman
patent: 2488729 (1949-11-01), Kooyman
patent: 3246187 (1966-04-01), Iemura
patent: 4006210 (1977-02-01), Denton
patent: 4173822 (1979-11-01), Futterer

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