Dual output force motor

Details Dual output force motor Dual output force motor

1979-02-26

1980-10-07

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Linear

310 27, H02K 3300

Patent

active

042271002

ABSTRACT:
An electric force motor includes two movable and independently actuatable coils energized by a single magnetic circuit. Air gaps are formed at respective ends of a tubular permanent magnet between a core of magnetically permeable material mounted within the magnet and pole pieces attached to opposite ends of the magnet. Such a configuration thus establishes a serial magnetic circuit connecting the magnet and the core through each of the air gaps. The two coils, each positioned within the respective air gaps, receive independent electrical input signals to develop corresponding output forces. Interactions between each coil that would tend to affect accuracy are minimized by choosing a magnet of high coercivity and by limiting the amount of input current applied to each coil.

REFERENCES:
patent: 2931925 (1960-04-01), Dolz
patent: 3018467 (1962-01-01), Harris
patent: 3924146 (1975-12-01), George
patent: 4075517 (1978-02-01), Adler
patent: 4136293 (1979-01-01), Patel

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