Document Type and Number:
Japanese Patent JPS5630778
Kind Code:
B2
Abstract:
A limited rotation electromechanical torsional oscillator for driving a mirror in an optical deflection system. A drive armature is mounted on a torsion bar at the opposite end from the torsion bar support. The ends of the armature lie in an air gap between two pole pieces. The magnet flux in the gap is caused to vary by means of a drive winding which results in armature rotation. Resonant frequency is varied by adjustment of the length of the torsion bar and the flux density. Q is varied by means of resistance in series with the drive winding.
Application Number:
JP9328276A
Publication Date:
July 17, 1981
Filing Date:
August 06, 1976
Export Citation:
International Classes:
H02K33/04; G02B26/10; G05D13/62; H02K33/08; H04N3/02; H04R11/14
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