JPS5910014U - capacitive converter - Google Patents

capacitive converter

Info

Publication number
JPS5910014U
JPS5910014U JP10540082U JP10540082U JPS5910014U JP S5910014 U JPS5910014 U JP S5910014U JP 10540082 U JP10540082 U JP 10540082U JP 10540082 U JP10540082 U JP 10540082U JP S5910014 U JPS5910014 U JP S5910014U
Authority
JP
Japan
Prior art keywords
capacitor
pulse width
width signal
capacitance
correction capacitor
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
Application number
JP10540082U
Other languages
Japanese (ja)
Other versions
JPH0122085Y2 (en
Inventor
平田　輝孝
正博 渡
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
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 Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP10540082U priority Critical patent/JPS5910014U/en
Publication of JPS5910014U publication Critical patent/JPS5910014U/en
Application granted granted Critical
Publication of JPH0122085Y2 publication Critical patent/JPH0122085Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measuring Fluid Pressure (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案変換器の一実施例を示す接続図、第２図
はその動作説明のための波形図、第３図は本考案変換器
の他の実施例を示す接続図である。 Ｃ１・・・可変コンデンサ、Ｃ２・・・補正用コンデン
サ、ＣＰ□、　ｃｐ２・・・コンパレータ、ＰＧ・・・
パルス発生器、ＭＭ・・・単安定マルチバイブレータ、
ＯＰＣ・・・論理回路、ＰＶＣ・・・パルス幅電圧変換
回路。FIG. 1 is a connection diagram showing one embodiment of the converter of the present invention, FIG. 2 is a waveform diagram for explaining its operation, and FIG. 3 is a connection diagram showing another embodiment of the converter of the present invention. C1...Variable capacitor, C2...Correction capacitor, CP□, cp2...Comparator, PG...
Pulse generator, MM...monostable multivibrator,
OPC...Logic circuit, PVC...Pulse width voltage conversion circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 被測定量に応じて容量が変化する可変コンデンサと、補
正コンデンサと、前記可変コンデンサと補正用コンデン
サを一足周期で同時に充放電させる手段と、前記可変コ
ンデンサの充電電圧を監視し可変コンデンサの容量に応
じた第１のパルス幅信号を得る手段と、前記補正コンデ
ンサの充電電圧を監視し補正用コンデンサの容量に応じ
た第２、　　　　のパルス幅信号を得る手段と、前記第
１．第２のパルス幅信号を受けその差に応じたパルス幅
信号を発生する手段とを具備したことを特徴とする容量
式変換器。a variable capacitor whose capacitance changes according to the amount to be measured; a correction capacitor; means for charging and discharging the variable capacitor and the correction capacitor simultaneously in one foot cycle; and monitoring the charging voltage of the variable capacitor to adjust the capacitance of the variable capacitor. means for obtaining a first pulse width signal corresponding to the capacitance of the correction capacitor; means for monitoring the charging voltage of the correction capacitor and obtaining a second pulse width signal corresponding to the capacitance of the correction capacitor; A capacitive converter comprising means for receiving a second pulse width signal and generating a pulse width signal according to the difference therebetween.
JP10540082U 1982-07-12 1982-07-12 capacitive converter Granted JPS5910014U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10540082U JPS5910014U (en) 1982-07-12 1982-07-12 capacitive converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10540082U JPS5910014U (en) 1982-07-12 1982-07-12 capacitive converter

Publications (2)

Publication Number Publication Date
JPS5910014U true JPS5910014U (en) 1984-01-21
JPH0122085Y2 JPH0122085Y2 (en) 1989-06-29

Family

ID=30247063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10540082U Granted JPS5910014U (en) 1982-07-12 1982-07-12 capacitive converter

Country Status (1)

Country Link
JP (1) JPS5910014U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0199949A (en) * 1987-10-09 1989-04-18 Toyo Seikan Kaisha Ltd Plastic pressure container
JPH01126913U (en) * 1988-02-10 1989-08-30
JPH0267939A (en) * 1988-09-02 1990-03-07 Matsushita Electric Ind Co Ltd pressure detection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257859A (en) * 1975-11-06 1977-05-12 Shimadzu Corp Static capacity-direct current signal converter
JPS5770404A (en) * 1980-10-20 1982-04-30 Matsushita Electric Ind Co Ltd Capacitance detecting circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257859A (en) * 1975-11-06 1977-05-12 Shimadzu Corp Static capacity-direct current signal converter
JPS5770404A (en) * 1980-10-20 1982-04-30 Matsushita Electric Ind Co Ltd Capacitance detecting circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0199949A (en) * 1987-10-09 1989-04-18 Toyo Seikan Kaisha Ltd Plastic pressure container
JPH01126913U (en) * 1988-02-10 1989-08-30
JPH0267939A (en) * 1988-09-02 1990-03-07 Matsushita Electric Ind Co Ltd pressure detection device

Also Published As

Publication number Publication date
JPH0122085Y2 (en) 1989-06-29

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