JPS6437771A - Servo mechanism for head positioning of magnetic disk device - Google Patents
Servo mechanism for head positioning of magnetic disk deviceInfo
- Publication number
- JPS6437771A JPS6437771A JP19497287A JP19497287A JPS6437771A JP S6437771 A JPS6437771 A JP S6437771A JP 19497287 A JP19497287 A JP 19497287A JP 19497287 A JP19497287 A JP 19497287A JP S6437771 A JPS6437771 A JP S6437771A
- Authority
- JP
- Japan
- Prior art keywords
- position deviation
- force constant
- signal
- head positioning
- multiplier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
Abstract
PURPOSE:To execute stable operation for head positioning by writing in advance the position deviation of the force constant of a servomotor in respective tracks in a ROM, changing the value of a driving current in accordance with the position deviation of the force constant with a multiplier, erasing an influence due to the position deviation from the driving current and after that, executing an integrating. CONSTITUTION:In a track area in which there is the position deviation of the force constant, data to correspond to the position deviation of the force constant are written to a ROM 12 in advance. A correcting current detecting signal 10, which is inputted to an multiplier 16, removes a multiplier influence component with a force constant position deviation signal 15 of an analog to correspond to the position deviation of the force constant and after that, it is outputted as a correcting current detecting signal 17. The correcting current detecting signal 17 is integrated by an integrator 18 and it is outputted as a speed estimating signal 19. The speed estimating signal 19 only includes a speed signal component and an influence component due to an external force and the influence component due to the position deviation of the force constant is not included. Thus, the stable head positioning can be executed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19497287A JPS6437771A (en) | 1987-08-03 | 1987-08-03 | Servo mechanism for head positioning of magnetic disk device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19497287A JPS6437771A (en) | 1987-08-03 | 1987-08-03 | Servo mechanism for head positioning of magnetic disk device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6437771A true JPS6437771A (en) | 1989-02-08 |
Family
ID=16333407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19497287A Pending JPS6437771A (en) | 1987-08-03 | 1987-08-03 | Servo mechanism for head positioning of magnetic disk device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6437771A (en) |
-
1987
- 1987-08-03 JP JP19497287A patent/JPS6437771A/en active Pending
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