JPS6439503A - Electrostatic capacity type displacement detecting sensor - Google Patents
Electrostatic capacity type displacement detecting sensorInfo
- Publication number
- JPS6439503A JPS6439503A JP19714687A JP19714687A JPS6439503A JP S6439503 A JPS6439503 A JP S6439503A JP 19714687 A JP19714687 A JP 19714687A JP 19714687 A JP19714687 A JP 19714687A JP S6439503 A JPS6439503 A JP S6439503A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- forming
- impressed
- voltages
- electrodes
- 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
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
PURPOSE:To enable detection stable over a long period of time even in adverse environment by using a metal, etc., which have an immobile or blind zone regardless of impressed voltages in a region where a hydrogen ion concn. is nearly neutral to form electrodes which constitute a sensor. CONSTITUTION:This electrostatic capacity type displacement detecting sensor 21 is constituted by housing a stationary plate 1 and a moving plate 2 into a case 11, forming the signal transmission electrode 3 and the signal reception electrode 4 to the stationary plate 1, and forming the coupling electrode 5 and the earth electrode 6 to the moving plate 2. The voltage signal corresponding to the voltage signal of the electrode 3 is induced via the electrode 5 to the electrode 4 when the AC voltages of different phases are impressed to the respective electrodes 3. The signal corresponding to the moving quantity of the spindle 14 is outputted when the moving plate 2 is displaced relative to the stationary plate 1 by the lifting of a spindle 14. The immobile region is obtd. over a wide range of the impressed voltages regardless of the hydrogen ion concn. by forming the electrodes 3, 4, 5, 6 of tantalum and, therefore, the stable detection is possible without inducing corrosion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19714687A JPS6439503A (en) | 1987-08-06 | 1987-08-06 | Electrostatic capacity type displacement detecting sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19714687A JPS6439503A (en) | 1987-08-06 | 1987-08-06 | Electrostatic capacity type displacement detecting sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6439503A true JPS6439503A (en) | 1989-02-09 |
Family
ID=16369525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19714687A Pending JPS6439503A (en) | 1987-08-06 | 1987-08-06 | Electrostatic capacity type displacement detecting sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6439503A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5626536A (en) * | 1994-07-19 | 1997-05-06 | Toyota Jidosha Kabushiki Kaisha | Lock-up clutch slip control apparatus and engine fuel-cut control apparatus for motor vehicle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5494354A (en) * | 1977-12-09 | 1979-07-26 | Stiftelsen Inst Mikrovags | Device for measuring relative position of moving part |
JPS58178903A (en) * | 1982-04-13 | 1983-10-20 | ティーディーケイ株式会社 | Conductive paste |
JPS61144813A (en) * | 1984-12-19 | 1986-07-02 | 松下電器産業株式会社 | Laminated ceramic capacitor and manufacture thereof |
-
1987
- 1987-08-06 JP JP19714687A patent/JPS6439503A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5494354A (en) * | 1977-12-09 | 1979-07-26 | Stiftelsen Inst Mikrovags | Device for measuring relative position of moving part |
JPS58178903A (en) * | 1982-04-13 | 1983-10-20 | ティーディーケイ株式会社 | Conductive paste |
JPS61144813A (en) * | 1984-12-19 | 1986-07-02 | 松下電器産業株式会社 | Laminated ceramic capacitor and manufacture thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5626536A (en) * | 1994-07-19 | 1997-05-06 | Toyota Jidosha Kabushiki Kaisha | Lock-up clutch slip control apparatus and engine fuel-cut control apparatus for motor vehicle |
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