JPS5562565A - Positional slippage detection method of magnetic head - Google Patents
Positional slippage detection method of magnetic headInfo
- Publication number
- JPS5562565A JPS5562565A JP13266478A JP13266478A JPS5562565A JP S5562565 A JPS5562565 A JP S5562565A JP 13266478 A JP13266478 A JP 13266478A JP 13266478 A JP13266478 A JP 13266478A JP S5562565 A JPS5562565 A JP S5562565A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- head
- positional slippage
- magnetic head
- recording band
- 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
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
- Control Of Position Or Direction (AREA)
Abstract
PURPOSE: To facilitate automatization of detection work by mounting a magnetic disc having recording materials in the regular position and positions inside and outside it and detecting positional slippage on a basis of amplitude change of the magnetic head output.
CONSTITUTION: A series of recording patterns consisting of recording band 5 recorded in the regular position, recording band 6 recorded distance A off from this recording band 5 to the outside, and recording band 7 recorded distance B off from recording band 5 to the inside is recorded on magnetic head 1. For detection of positional slippage, disc 1 is rotated in the arrow A direction, and a command is given to head positioning mechanism 12 so that magnetic head 2 may be positioned on recording band 5. When read waveforms for recording bands 5, 6 and 7 are denoted as V1, V2 and V3, V1>V2 and V1>V3 are true in case of no positional slippage of head 3. Consequently, V1≥V2 and V1>V3 are ture if positional slippage of head 2 is within tolerance, and it is discriminated whether positioning of head 2 is proper or not according to satisfaction or unsatisfaction of these conditions.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13266478A JPS5562565A (en) | 1978-10-30 | 1978-10-30 | Positional slippage detection method of magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13266478A JPS5562565A (en) | 1978-10-30 | 1978-10-30 | Positional slippage detection method of magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5562565A true JPS5562565A (en) | 1980-05-12 |
Family
ID=15086602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13266478A Pending JPS5562565A (en) | 1978-10-30 | 1978-10-30 | Positional slippage detection method of magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5562565A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4458275A (en) * | 1980-03-11 | 1984-07-03 | Olivetti Tecnost, S.P.A. | Method and device for testing units for processing magnetic disks |
-
1978
- 1978-10-30 JP JP13266478A patent/JPS5562565A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4458275A (en) * | 1980-03-11 | 1984-07-03 | Olivetti Tecnost, S.P.A. | Method and device for testing units for processing magnetic disks |
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