JPS55112511A - Capacitive displacement gauge - Google Patents
Capacitive displacement gaugeInfo
- Publication number
- JPS55112511A JPS55112511A JP1938079A JP1938079A JPS55112511A JP S55112511 A JPS55112511 A JP S55112511A JP 1938079 A JP1938079 A JP 1938079A JP 1938079 A JP1938079 A JP 1938079A JP S55112511 A JPS55112511 A JP S55112511A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- level
- measured
- diode
- constant current
- 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
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE: To eliminate the influence of the resistance between measured electrodes, by charging fixed-waveform pulses through a diode to the capacity between measured electrodes and by discharging the capacity above with a constant current and by detecting the voltage for discharge with two levels to indicate an average voltage.
CONSTITUTION: The pulse voltage from pulse signal generator 1 is sufficiently charged into capacities 4 and 5 between measured electrodes of a capacitive water level meter, etc., through resistance 2 and diode 3. After that, when the pulse voltage breaks, charged electric charge is discharged through constant current circuit 6. At this time, the high-level output is outputted from AND circuit 10 between the high level and the low level by comparators 7 and 8 which perform detection with the high level and the low level, and an average voltage is indicated through low- pass filters 11 and 12 by 13, and a measured quantity is displayed by this indication.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1938079A JPS55112511A (en) | 1979-02-21 | 1979-02-21 | Capacitive displacement gauge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1938079A JPS55112511A (en) | 1979-02-21 | 1979-02-21 | Capacitive displacement gauge |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55112511A true JPS55112511A (en) | 1980-08-30 |
Family
ID=11997700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1938079A Pending JPS55112511A (en) | 1979-02-21 | 1979-02-21 | Capacitive displacement gauge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55112511A (en) |
-
1979
- 1979-02-21 JP JP1938079A patent/JPS55112511A/en active Pending
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