Title :
Damping control of small actuator for moving heads of VCRs
Author :
Nakatsu, Kimihide ; Furuishi, Yoshiro ; Kanagawa, Yuji
Author_Institution :
Mitsubishi Electric Corp., Kyoto, Japan
fDate :
5/1/1993 12:00:00 AM
Abstract :
In order to realize a narrow track recording mechanism for VCRs, the concept of DTF (dynamic track following) system using a small actuator was developed. A major problem in the DTF system for high-density recording lies in the mechanical vibration characteristics of the small actuator which moves the head. A damping control system with a velocity feedback loop for realizing high-performance DTF system is described, and this velocity feedback system makes it possible to markedly suppress the first mode vibration of the small actuator
Keywords :
electric actuators; feedback; vibration control; video tape recorders; DTF; VCRs; VTR; damping control system; dynamic track following; high-density recording; mechanical vibration; moving heads; narrow track recording mechanism; small actuator; velocity feedback loop; video cassette recorder; video tape recorder; Actuators; Coils; Control systems; Damping; High definition video; Magnetic heads; Resonance; Velocity control; Vibrations; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
