Inductance type rotational position sensor including a magnetic

Details Inductance type rotational position sensor including a magnetic Inductance type rotational position sensor including a magnetic

1992-05-22

1993-09-28

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

310 68B, 32420725, 336 45, G01B 730, H02K 1100, H01F 2102, G01R 2726

Patent

active

052489388

ABSTRACT:
A substantially C-shaped core which is used in a rotational position sensor of an inductance type. The core is formed of a sensing side portion and a referencing side portion, each of which has an arc shape. The centers of the arc shapes are spaced apart from one another at a predetermined distance, thereby extending a movable range of a movable short ring. As a result, a rotational position can be detected over a wider range of degrees. The core is also formed of a core intermediate portion, which has laminated thin plates therein, and core opposite end portions, which are disposed in a sealed state on the top and bottom surfaces of the core intermediate portion. The core intermediate portion and the core opposite end portions are welded together at given points so as to form a one-piece body. Surfaces of the core can thereby be prevented from being deformed or detached.

REFERENCES:
patent: 3973191 (1976-08-01), Zabler
patent: 4132980 (1979-01-01), Zabler
patent: 4338815 (1982-07-01), Peters et al.

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