Electricity: measuring and testing – Magnetic – Displacement
Patent
1997-04-25
1999-08-17
Snow, Walter E.
Electricity: measuring and testing
Magnetic
Displacement
32420725, G01B 730, G01B 714, G01D 520, H01F 2102
Patent
active
059398787
ABSTRACT:
An angular displacement transducer has a highly magnetically permeable target which preferentially directs the flux of a fluctuating magnetic field through one of two or more cores. The fluctuating magnetic field induces voltages in secondary windings around the cores. Output signals which vary with the angle of the target about an axis are obtained by connecting pairs of secondary windings differentially. By choosing targets of different shapes the output voltage can be made to vary with angle as a sine wave or as a triangular wave. Transducers according to the invention can be rugged and accurate while retaining a simple construction.
REFERENCES:
patent: 3439256 (1969-04-01), Kahne
patent: 3641429 (1972-02-01), Cox, Jr. et al.
patent: 3742340 (1973-06-01), Kiedrowski
patent: 3806785 (1974-04-01), DeValroger et al.
patent: 4044305 (1977-08-01), Oberbeck
patent: 4090131 (1978-05-01), Mas
patent: 4507638 (1985-03-01), Brosh
patent: 4829247 (1989-05-01), Wallrafen
patent: 5241268 (1993-08-01), Lee
patent: 5247261 (1993-09-01), Gershenfeld
patent: 5252919 (1993-10-01), Uemura
patent: 5300882 (1994-04-01), Barros
patent: 5300883 (1994-04-01), Richeson
patent: 5367256 (1994-11-01), Cooper et al.
patent: 5369323 (1994-11-01), Allwine, Jr.
patent: 5402096 (1995-03-01), Harris
patent: 5404101 (1995-04-01), Logue
patent: 5497749 (1996-03-01), Kim
patent: 5504427 (1996-04-01), Cooper et al.
patent: 5559432 (1996-09-01), Logue
Robinson, David T., "Absolute Inductive Position Transducer Offers High-Speed Operation", PCIM, Feb., 1997, pp. 20-27.
Goldie, James H., "Multi-Air Gap Electric Motor Provides High Torque", PCIM, Mar., 1997, pp. 31-41.
Phoenixcloud Explorations Ltd.
Snow Walter E.
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