Title :
3.5 inch 16 Mbyte floppy disk drive
Author :
Yoshida, S. ; Wakabayashi, N. ; Inaji, T. ; Yoshiura, T. ; Matsukawa, S. ; Onodera, H.
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
fDate :
8/1/1989 12:00:00 AM
Abstract :
The authors have developed a 3.5-in, 16-Mbyte, large-capacity, high-speed floppy disk drive (FDD). A novel embedded sector server technology with a learning-forward control and a double-loop multisampling system, as well as a microstepping motor with an optical encoder, were used to achieve high density of 542 tracks/in with an accurate trackability of ±2.5 μm and a high-speed average seek time of less than 50 msec as well as high vibration resistance. The authors describe the overall FDD system, the head positioning control system, and the control performance
Keywords :
floppy discs; 16 Mbyte; 3.5 inch; double-loop multisampling system; embedded sector server; floppy disk drive; head positioning control system; learning-forward control; microstepping motor; optical encoder; trackability; vibration resistance; Communication system control; Control systems; Drives; Electrical equipment industry; Electronics industry; Floppy disks; Laboratories; Magnetic heads; Servomechanisms; Vibrations;
Journal_Title :
Consumer Electronics, IEEE Transactions on
