Homogeneous field magnet with at least one pole plate to be mech

Details Homogeneous field magnet with at least one pole plate to be mech Homogeneous field magnet with at least one pole plate to be mech

1991-11-26

1998-03-17

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

324319, 335297, H01F 700

Patent

active

057291888

ABSTRACT:
A magnet contains a magnetic yoke and two pole shoes, between which a magnetic field of great homogeneity is formed. The pole shoes are provided with special pole plates. At least one pole plate (11d) is separated from a base part (11b) facing the yoke by a narrow correction air gap (15), and can be aligned by means of mechanical setting devices. According to the invention, each pole shoe (11) has a bead-like edge piece (11c) for field correction at its edge area (17b), which surrounds an inner pole shoe area (17a). In this region, the pole plate (11d), which can be aligned laterally separated from the edge piece (21).

REFERENCES:
patent: 2664527 (1953-12-01), Reed
patent: 4679022 (1987-07-01), Miyamoto
patent: 4707663 (1987-11-01), Minkoff et al.
patent: 4870380 (1989-09-01), McGinley
patent: 5003276 (1991-03-01), Sarwinski
patent: 5061897 (1991-10-01), Danby et al.

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