Electromagnetic drive assembly for rotary bodies using a magneti

Details Electromagnetic drive assembly for rotary bodies using a magneti Electromagnetic drive assembly for rotary bodies using a magneti

1974-07-29

1976-10-26

Schaefer, Robert K.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318653, 318676, 308 10, 310 12, 74 546, G05F 100, F16C 3906

Patent

active

039886581

ABSTRACT:
An electromagnetic drive for rotary bodies including a stationary member having at least two coils and a revolving member arranged for rotation with respect thereto. The coils are supplied with a current signal for causing rotation of the revolving member and a sensing arrangement senses the position of the revolving member with respect to the stationary member and provides an output indicative thereof. A control device is responsive to the output of sensing arrangement for supplying an additional current signal to the coils effect positional control of the revolving member.

REFERENCES:
patent: 3243238 (1966-03-01), Lyman
patent: 3462666 (1969-08-01), Martinek
patent: 3480811 (1969-11-01), Grosbard
patent: 3548275 (1970-12-01), Inggaki et al.
patent: 3694041 (1972-09-01), Studer
patent: 3845995 (1974-11-01), Wehde

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