JPS5635012A - Displacement converter - Google Patents
Displacement converterInfo
- Publication number
- JPS5635012A JPS5635012A JP11089579A JP11089579A JPS5635012A JP S5635012 A JPS5635012 A JP S5635012A JP 11089579 A JP11089579 A JP 11089579A JP 11089579 A JP11089579 A JP 11089579A JP S5635012 A JPS5635012 A JP S5635012A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- capacitance
- fed
- displacement
- fixed
- 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
- Measuring Fluid Pressure (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE: To obtain the output linear to the measuring value, by applying AC signal to the fixed and variable capacitance sections of the capacitance type displacement detector having the fixed capacitance and the variable capacitance and controlling the amplitude of AC signal to obtain constant difference signal.
CONSTITUTION: AC signal is fed to the variable capacitance section C2 and the fixed capacitance section C1 in which the capacitance is changed on displacement, from the oscillator 20 and the AC signal flowing to the respective capacitance section is half-wave-rectified D1, D2 and the detection signal is fed to the control means 21. The oscillator 20 is controlled so that this detection signal is always at a given value, the voltage e2 produced at the resistor R2 is given to the inverting input terminal of the operational amplifier 25 to control the transistor 26, to change the current I0 in the two-line type transmission line 27, and the signal proportional to the displacement is fed to the receiver installed 28 at a remote location.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11089579A JPS5635012A (en) | 1979-08-30 | 1979-08-30 | Displacement converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11089579A JPS5635012A (en) | 1979-08-30 | 1979-08-30 | Displacement converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5635012A true JPS5635012A (en) | 1981-04-07 |
Family
ID=14547401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11089579A Pending JPS5635012A (en) | 1979-08-30 | 1979-08-30 | Displacement converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5635012A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59173703A (en) * | 1983-03-23 | 1984-10-01 | Yokogawa Hokushin Electric Corp | Capacity type converting device |
-
1979
- 1979-08-30 JP JP11089579A patent/JPS5635012A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59173703A (en) * | 1983-03-23 | 1984-10-01 | Yokogawa Hokushin Electric Corp | Capacity type converting device |
JPH0370767B2 (en) * | 1983-03-23 | 1991-11-08 | Yokogawa Electric Corp |
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