JPS56107170A - Condenser electrostatic capacity measurement device - Google Patents

Condenser electrostatic capacity measurement device

Info

Publication number
JPS56107170A
JPS56107170A JP1031880A JP1031880A JPS56107170A JP S56107170 A JPS56107170 A JP S56107170A JP 1031880 A JP1031880 A JP 1031880A JP 1031880 A JP1031880 A JP 1031880A JP S56107170 A JPS56107170 A JP S56107170A
Authority
JP
Japan
Prior art keywords
condenser
electrostatic capacity
power supply
fixed
fixed ratio
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
JP1031880A
Other languages
Japanese (ja)
Inventor
Katsuo Ueki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1031880A priority Critical patent/JPS56107170A/en
Publication of JPS56107170A publication Critical patent/JPS56107170A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE:To make possible measurement of DC electrostatic capacity in a fixed period regardless of the electrostatic capacity of a condenser to be measured by constituting a power supply whose voltage increases at a fixed ratio against time. CONSTITUTION:A fixed current circuit is constituted with FETQ1 and a resistance R. If a switch S is opened, a condenser C1 is charged by means of a DC power supply E and an interterminal voltage climbs up at a fixed ratio with time. This soaring voltage is converted in terms of impedance under the emitter follower action of Q2, so that a power supply 1 whose voltage increases at a fixed ratio against time is obtained. This output current is applied to a condenser C2 to be measured through the intermediary of a DC ammeter A. Thus the electrostatic value of the C2 is obtained based on the reading of the ammeter A.
JP1031880A 1980-01-31 1980-01-31 Condenser electrostatic capacity measurement device Pending JPS56107170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1031880A JPS56107170A (en) 1980-01-31 1980-01-31 Condenser electrostatic capacity measurement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1031880A JPS56107170A (en) 1980-01-31 1980-01-31 Condenser electrostatic capacity measurement device

Publications (1)

Publication Number Publication Date
JPS56107170A true JPS56107170A (en) 1981-08-25

Family

ID=11746881

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1031880A Pending JPS56107170A (en) 1980-01-31 1980-01-31 Condenser electrostatic capacity measurement device

Country Status (1)

Country Link
JP (1) JPS56107170A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104272119A (en) * 2012-05-30 2015-01-07 株式会社村田制作所 Module and capacitance detecting method
JP2020118640A (en) * 2019-01-28 2020-08-06 日本電産リード株式会社 Capacitor inspection device and method for inspecting capacitor
CN114144685A (en) * 2019-10-01 2022-03-04 株式会社日立产机系统 Power supply capacitor electrostatic capacitance measuring device and power supply capacitor electrostatic capacitance measuring method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104272119A (en) * 2012-05-30 2015-01-07 株式会社村田制作所 Module and capacitance detecting method
US9188616B2 (en) 2012-05-30 2015-11-17 Murata Manufacturing Co., Ltd. Module and capacitance detecting method
JP2020118640A (en) * 2019-01-28 2020-08-06 日本電産リード株式会社 Capacitor inspection device and method for inspecting capacitor
CN114144685A (en) * 2019-10-01 2022-03-04 株式会社日立产机系统 Power supply capacitor electrostatic capacitance measuring device and power supply capacitor electrostatic capacitance measuring method

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