IT998403B - COARSE AND FINE CONTROL FOR A POSITIONING SERVO SYSTEM - Google Patents
COARSE AND FINE CONTROL FOR A POSITIONING SERVO SYSTEMInfo
- Publication number
- IT998403B IT998403B IT2802973A IT2802973A IT998403B IT 998403 B IT998403 B IT 998403B IT 2802973 A IT2802973 A IT 2802973A IT 2802973 A IT2802973 A IT 2802973A IT 998403 B IT998403 B IT 998403B
- Authority
- IT
- Italy
- Prior art keywords
- coarse
- servo system
- fine control
- positioning servo
- positioning
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1436—Control of position or direction using feedback using an analogue comparing device with fine or coarse devices
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/42—Servomotor, servo controller kind till VSS
- G05B2219/42171—Velocity profile, variable gain, multiplication factors, rom ram
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
- Feedback Control In General (AREA)
- Moving Of Head For Track Selection And Changing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28248772A | 1972-08-21 | 1972-08-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT998403B true IT998403B (en) | 1976-01-20 |
Family
ID=23081724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2802973A IT998403B (en) | 1972-08-21 | 1973-08-21 | COARSE AND FINE CONTROL FOR A POSITIONING SERVO SYSTEM |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5148053B2 (en) |
CA (1) | CA995300A (en) |
DE (1) | DE2326661A1 (en) |
FR (1) | FR2197193B1 (en) |
GB (1) | GB1423706A (en) |
IT (1) | IT998403B (en) |
NL (1) | NL7311053A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1488038A (en) * | 1974-12-10 | 1977-10-05 | Ibm | Data storage apparatus |
FI108262B (en) | 1998-01-23 | 2001-12-14 | Metso Paper Automation Oy | Method of positioning an actuator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1127992A (en) * | 1955-06-16 | 1956-12-28 | Servomecanismes Electroniques | Improvements to servomechanisms |
GB1114676A (en) * | 1963-12-23 | 1968-05-22 | English Electric Co Ltd | Control system for an electrically-operated actuator |
BE724125A (en) * | 1968-11-19 | 1969-05-19 | Acec | Position control device |
DE2034933A1 (en) * | 1970-07-14 | 1972-01-27 | Siemens Ag | Disk storage |
GB1319227A (en) * | 1971-02-15 | 1973-06-06 | Ibm | Movement control system |
-
1973
- 1973-05-02 CA CA170,213A patent/CA995300A/en not_active Expired
- 1973-05-11 GB GB2254773A patent/GB1423706A/en not_active Expired
- 1973-05-25 DE DE19732326661 patent/DE2326661A1/en active Pending
- 1973-08-09 NL NL7311053A patent/NL7311053A/xx not_active Application Discontinuation
- 1973-08-21 JP JP9296173A patent/JPS5148053B2/ja not_active Expired
- 1973-08-21 IT IT2802973A patent/IT998403B/en active
- 1973-08-21 FR FR7330369A patent/FR2197193B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2197193B1 (en) | 1976-11-19 |
FR2197193A1 (en) | 1974-03-22 |
JPS5148053B2 (en) | 1976-12-18 |
NL7311053A (en) | 1974-02-25 |
GB1423706A (en) | 1976-02-04 |
DE2326661A1 (en) | 1974-03-21 |
CA995300A (en) | 1976-08-17 |
JPS5036105A (en) | 1975-04-05 |
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