Combination of a flux coupling coefficient, a resonant pick-up c

Details Combination of a flux coupling coefficient, a resonant pick-up c Combination of a flux coupling coefficient, a resonant pick-up c

1997-04-03

1999-06-01

Strecker, Gerard

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324228, 324232, G01N 2772, G01N 2790

Patent

active

059091185

ABSTRACT:
A combination of three factors for increasing the spatial resolution of a polar coordinates sensor. (1) a coefficient of coupling factor including a gap in the magnetic circuit path between the driving core and the pick-up core. (2) a tuned "tank-circuit" factor including a capacitor connected in shunt with the pick-up coil. (3) a driving frequency spectrum factor for modulating the frequency of the sine-cosine excitation to the driving core.

REFERENCES:
patent: 4282487 (1981-08-01), Warren et al.
patent: 5404101 (1995-04-01), Logue
patent: 5418460 (1995-05-01), Cloutier et al.
patent: 5532591 (1996-07-01), Logue
patent: 5548212 (1996-08-01), Logue
patent: 5554933 (1996-09-01), Logue
patent: 5559432 (1996-09-01), Logue
patent: 5574367 (1996-11-01), Logue

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