JPS55112514A - Magnetic graduation detection measuring unit - Google Patents
Magnetic graduation detection measuring unitInfo
- Publication number
- JPS55112514A JPS55112514A JP2004979A JP2004979A JPS55112514A JP S55112514 A JPS55112514 A JP S55112514A JP 2004979 A JP2004979 A JP 2004979A JP 2004979 A JP2004979 A JP 2004979A JP S55112514 A JPS55112514 A JP S55112514A
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- magnetic
- change
- fixed
- graduation
- 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.)
- Granted
Links
Abstract
PURPOSE: To enhance a detection sensitivity by detecting and measuring a magnetic scale by a high-frequency vibrator which magnetism is given to.
CONSTITUTION: The surface of electrostrictive material 2a such as a crystal and a porcelain is coated with magnetic material 2b such as an AlSiFe material thinly, and material 2a is fixed to support base material 2c, and tape guide 2d of plastic, etc., is fixed to base material 2c, and electrostrictive vibrator 2a is moved above magnetic scale 1 while keeping a fixed minute gap by guide 2d. When vibrator 2a reaches a magnetized magnetic graduation, a magnetic suction force acts on vibrator 2a, and the vibration state of vibrator 2a which performs high-frequency vibration due to an oscillator is changed. Then, this change is detected as change of the number of vibrations, change of the reflection wave, change of the piezo-electric signal, etc., thus detecting the graduation of magnetic scale.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004979A JPS5848045B2 (en) | 1979-02-21 | 1979-02-21 | Magnetic scale detection measurement device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004979A JPS5848045B2 (en) | 1979-02-21 | 1979-02-21 | Magnetic scale detection measurement device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55112514A true JPS55112514A (en) | 1980-08-30 |
JPS5848045B2 JPS5848045B2 (en) | 1983-10-26 |
Family
ID=12016196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004979A Expired JPS5848045B2 (en) | 1979-02-21 | 1979-02-21 | Magnetic scale detection measurement device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5848045B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58122474A (en) * | 1982-01-14 | 1983-07-21 | Toshiba Corp | Magnetic sensor |
JP2010529361A (en) * | 2007-07-24 | 2010-08-26 | コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Turbocharger having a turbocharger casing having a threaded portion by a tie rod |
-
1979
- 1979-02-21 JP JP2004979A patent/JPS5848045B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58122474A (en) * | 1982-01-14 | 1983-07-21 | Toshiba Corp | Magnetic sensor |
JP2010529361A (en) * | 2007-07-24 | 2010-08-26 | コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Turbocharger having a turbocharger casing having a threaded portion by a tie rod |
Also Published As
Publication number | Publication date |
---|---|
JPS5848045B2 (en) | 1983-10-26 |
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