JPS6482332A - Slide testing device for magnetic disk - Google Patents
Slide testing device for magnetic diskInfo
- Publication number
- JPS6482332A JPS6482332A JP23949287A JP23949287A JPS6482332A JP S6482332 A JPS6482332 A JP S6482332A JP 23949287 A JP23949287 A JP 23949287A JP 23949287 A JP23949287 A JP 23949287A JP S6482332 A JPS6482332 A JP S6482332A
- Authority
- JP
- Japan
- Prior art keywords
- wear
- light
- vibration
- testing device
- magnetic disk
- 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
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To facilitate the analysis of the wear and to improve the wear resistance by observing and recording vibration on the surface of a magnetic disk of a magnetic heat by the reflection of a light and a two-dimensional position sensor. CONSTITUTION:A magnetic head generates a fine vibration which is extremely small and cannot be observed easily, therefore, it is impossible to decide it directly by a visual observation, and the light 8 and the photosensor 9 are utilized so that the vibration can be amplified, and also, quantified. Concretely, to the magnetic head, a reflecting mirror 5 is stuck, a luminous flux 8 is projected to its mirror 5 from the outside and reflected, and its reflected light is photodetected by a two-dimensional position sensor 9, and the light receiving position is converted to an electric output and displayed on an oscilloscope 12. In such a way, a slide testing device which can detect easily the first stage of the wear and analyze the wear mechanism can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23949287A JPS6482332A (en) | 1987-09-24 | 1987-09-24 | Slide testing device for magnetic disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23949287A JPS6482332A (en) | 1987-09-24 | 1987-09-24 | Slide testing device for magnetic disk |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6482332A true JPS6482332A (en) | 1989-03-28 |
Family
ID=17045580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23949287A Pending JPS6482332A (en) | 1987-09-24 | 1987-09-24 | Slide testing device for magnetic disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6482332A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5851321A (en) * | 1995-01-13 | 1998-12-22 | The Yokohama Rubber Co., Ltd. | Pneumatic tire including cap tread portion |
-
1987
- 1987-09-24 JP JP23949287A patent/JPS6482332A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5851321A (en) * | 1995-01-13 | 1998-12-22 | The Yokohama Rubber Co., Ltd. | Pneumatic tire including cap tread portion |
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