Limited rotation device having two degrees of freedom

Details Limited rotation device having two degrees of freedom Limited rotation device having two degrees of freedom

1977-04-06

1982-12-14

Duggan, Donovan F.

Electricity: motive power systems

Reciprocating or oscillating motor

Energizing winding circuit control

310 36, 350 65, 335229, H02K 3300

Patent

active

043640001

ABSTRACT:
A device for reciprocally rotating an output element such as a scanning mirror by means of an electric motor employs a two-degree-of-freedom suspension in which the motor armature is constrained by a first torsional suspension and the output element is supported from the armature by an independent second suspension. The resonant frequency of the armature and its suspension is substantially equal to the resonant frequency of the output element and its suspension.

REFERENCES:
patent: 3642344 (1972-02-01), Corker
patent: 3678308 (1972-07-01), Howe
patent: 3952217 (1976-04-01), Rawlings

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