Air-core meter having improved bobbin design

Details Air-core meter having improved bobbin design Air-core meter having improved bobbin design

1989-12-29

1991-05-21

Wieder, Kenneth

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With electromagnetic field

324144, 324154R, 324125, G01R 102

Patent

active

050178628

ABSTRACT:
An air-core meter having a two-piece bobbin enclosing and surrounding a moveable magnet within a sealed cavity containing a damping fluid. The magnet is rotated about the axis of a supporting shaft by a plurality of orthogonally related windings disposed about the outer surface of the bobbin. The air-core meter provides improved and simplified assembly, improved reliability and reduced damage in routine operation and service through novel bearing design and bobbin structure. Furthermore, improved meter performance is provided by specific winding geometries and magnetic structure design.

REFERENCES:
patent: 3753107 (1973-08-01), Burgett et al.
patent: 4758784 (1988-07-01), Baker et al.
patent: 4906919 (1990-03-01), Sato et al.

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