JPS6473581A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPS6473581A JPS6473581A JP22956887A JP22956887A JPS6473581A JP S6473581 A JPS6473581 A JP S6473581A JP 22956887 A JP22956887 A JP 22956887A JP 22956887 A JP22956887 A JP 22956887A JP S6473581 A JPS6473581 A JP S6473581A
- Authority
- JP
- Japan
- Prior art keywords
- head
- electrode
- electrostatic capacity
- conductive
- medium
- 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
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To prevent the adhesion accident of a head by forming electrode at the slider itself or the lower surface of the slider for a recording medium and forming a insulating thin film on the surface of the electrode or the surface of the recording medium. CONSTITUTION:The change of electrostatic capacity by water or lubricating oil existing in the gap between head disks are measured. That means, the disk uses a conductive continuous medium and a conductive head or a head having a conductive thin film 2 to measure the electrostatic capacity between the head and disks. Then, by measuring the variation of the electrostatic capacity between them, the very small amount of the water or the oil existing in the very small gap is perceived. As the electrostatic capacity does not exist when the both electrode directly contact each other, the liquid between a insulating film 3 and the other electrode is detected by arranging the both electrode to contact each other through the thin insulating film 3. Thus, as the adhesive force between the head and a spatter medium 5 can be foreknown at stopping time, the damage of a head supporting body 4, etc., can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22956887A JPS6473581A (en) | 1987-09-16 | 1987-09-16 | Magnetic disk device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22956887A JPS6473581A (en) | 1987-09-16 | 1987-09-16 | Magnetic disk device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6473581A true JPS6473581A (en) | 1989-03-17 |
Family
ID=16894212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22956887A Pending JPS6473581A (en) | 1987-09-16 | 1987-09-16 | Magnetic disk device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6473581A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03121586U (en) * | 1990-03-15 | 1991-12-12 | ||
US5342500A (en) * | 1991-10-08 | 1994-08-30 | Mitsubishi Denki Kabushiki Kaisha | Interfacial component detection apparatus |
US6678113B2 (en) | 2001-03-19 | 2004-01-13 | Hitachi Global Storage Technologies Netherlands B.V. | Device and method for monitoring lubricant within a disk drive |
JP2008249087A (en) * | 2007-03-30 | 2008-10-16 | Taiho Kogyo Co Ltd | Butterfly valve |
-
1987
- 1987-09-16 JP JP22956887A patent/JPS6473581A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03121586U (en) * | 1990-03-15 | 1991-12-12 | ||
US5342500A (en) * | 1991-10-08 | 1994-08-30 | Mitsubishi Denki Kabushiki Kaisha | Interfacial component detection apparatus |
US6678113B2 (en) | 2001-03-19 | 2004-01-13 | Hitachi Global Storage Technologies Netherlands B.V. | Device and method for monitoring lubricant within a disk drive |
JP2008249087A (en) * | 2007-03-30 | 2008-10-16 | Taiho Kogyo Co Ltd | Butterfly valve |
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