JPS6437771A - Servo mechanism for head positioning of magnetic disk device - Google Patents

Servo mechanism for head positioning of magnetic disk device

Info

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
Application number
JP19497287A
Other languages
Japanese (ja)
Inventor
Doshu Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP19497287A priority Critical patent/JPS6437771A/en
Publication of JPS6437771A publication Critical patent/JPS6437771A/en
Pending legal-status Critical Current

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.
JP19497287A 1987-08-03 1987-08-03 Servo mechanism for head positioning of magnetic disk device Pending JPS6437771A (en)

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)

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