Asymmetrical excitation type magnetic device and method of manuf

Details Asymmetrical excitation type magnetic device and method of manuf Asymmetrical excitation type magnetic device and method of manuf

1988-03-31

1990-07-31

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

296021, 29604, 29608, 29609, 123617, 310 70R, 310152, 365133, F02P 7067, H01F 100, H03K 345, G11C 1102

Patent

active

049442708

ABSTRACT:
An asymmetric excitation type magnetic device is provided with a composite magnetic body composed of a first magnetic layer having a relatively strong coercive force and a second magnetic layer having a relatively weak coercive force which layers are combined so as to have their respective magnetic anisotropy oriented in the same direction. To such a composite magnetic body are applied external positive and negative asymmetric magnetic fields in a specified order thereby to produce variations in magnetic flux due to an escpecially quick magnetization reversal and resultantly to generate steep pulse outputs across a detecting coil.

REFERENCES:
patent: 4263523 (1981-04-01), Wiegand
patent: 4374403 (1983-02-01), Oshima et al.
patent: 4484090 (1984-11-01), Wiegand et al.
patent: 4635227 (1987-01-01), Norman
patent: 4639670 (1987-01-01), Normann

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