Driving cores for polar coordinates sensors

Details Driving cores for polar coordinates sensors Driving cores for polar coordinates sensors

1996-07-24

1998-05-19

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

324228, 324232, 324239, 324240, G01N 2772, G01B 700, G01R 3300

Patent

active

057540438

ABSTRACT:
An elongated hollow toroid driving core having a pick-up core formed as an integral part. A cross shaped driving core having two orthogonal sine-cosine excited flux circuits, a polar sensor is mounted where the cross arms intersect, the axis of the polar sensor being perpendicular to the driving core surface, thus disposing the winding turns of the pick-up coil coplanar to the driving flux lines. A third embodiment of a driving core device includes a hollow toroid and cross shaped driving core combination providing dual interacting rotating fields generating a sensing pattern having additive or subtractive dipoles that may be steerable.

REFERENCES:
patent: 3876932 (1975-04-01), Domon et al.
patent: 4595843 (1986-06-01), Del Vecchio et al.
patent: 5404101 (1995-04-01), Logue

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