JPS55112511A - Capacitive displacement gauge - Google Patents

Capacitive displacement gauge

Info

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
Application number
JP1938079A
Other languages
Japanese (ja)
Inventor
Yuzuru Fuse
Mikio Matsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KIYAPAKON INSTR KK
KIYAPAKON INSUTSURUMENTSU KK
Original Assignee
KIYAPAKON INSTR KK
KIYAPAKON INSUTSURUMENTSU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KIYAPAKON INSTR KK, KIYAPAKON INSUTSURUMENTSU KK filed Critical KIYAPAKON INSTR KK
Priority to JP1938079A priority Critical patent/JPS55112511A/en
Publication of JPS55112511A publication Critical patent/JPS55112511A/en
Pending legal-status Critical Current

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
JP1938079A 1979-02-21 1979-02-21 Capacitive displacement gauge Pending JPS55112511A (en)

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)

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