JPS5461856A - Measurement system for capacity of rlc series metwork - Google Patents

Measurement system for capacity of rlc series metwork

Info

Publication number
JPS5461856A
JPS5461856A JP12898477A JP12898477A JPS5461856A JP S5461856 A JPS5461856 A JP S5461856A JP 12898477 A JP12898477 A JP 12898477A JP 12898477 A JP12898477 A JP 12898477A JP S5461856 A JPS5461856 A JP S5461856A
Authority
JP
Japan
Prior art keywords
resistance
series
reference resistance
capacity
inductance
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
JP12898477A
Other languages
Japanese (ja)
Inventor
Akio Nomura
Chikao Sato
Shinichi Ito
Hidemi Harada
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP12898477A priority Critical patent/JPS5461856A/en
Publication of JPS5461856A publication Critical patent/JPS5461856A/en
Pending legal-status Critical Current

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  • Measurement Of Resistance Or Impedance (AREA)

Abstract

PURPOSE: To realize highly-precise measurement under no influence of a series resistance and inductance except a reference resistance, by integrating a voltage across the reference resistance series-inserted into a series network composed of a resistance, inductance and capacity when extracting and measuring only the capacity of the network.
CONSTITUTION: Reference resistance 10 is connected newly to the entrance side of resistance 11 of the series circuit composed of circuit 11, inductance 9 and measured capacitor 3. To both the sides of this resistance 10, the negative and positive input terminals of operational amplifier 12 are connected via resistances R0 and R1 respectively; and feedback capacitor C0 is connected to the negative input terminal, and grounded capacitor C1 is to the positive input terminal, thereby constituting the differential integrator. Next, a unit staircase wave of +Es volt is applied to input terminal 1, and the accumulated charge of measured capacitor 3 is calculated by equation (9), provided that a difference in potential across reference resistance 10 and reference resistance are denoted by vs(t) and Rs respectively. Consequently, the measurement value can be obtained accurately under no influence.
COPYRIGHT: (C)1979,JPO&Japio
JP12898477A 1977-10-27 1977-10-27 Measurement system for capacity of rlc series metwork Pending JPS5461856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12898477A JPS5461856A (en) 1977-10-27 1977-10-27 Measurement system for capacity of rlc series metwork

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12898477A JPS5461856A (en) 1977-10-27 1977-10-27 Measurement system for capacity of rlc series metwork

Publications (1)

Publication Number Publication Date
JPS5461856A true JPS5461856A (en) 1979-05-18

Family

ID=14998238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12898477A Pending JPS5461856A (en) 1977-10-27 1977-10-27 Measurement system for capacity of rlc series metwork

Country Status (1)

Country Link
JP (1) JPS5461856A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978936U (en) * 1982-11-17 1984-05-28 株式会社ニチフ端子工業 liquid container
JPS59137824A (en) * 1983-01-28 1984-08-08 Tlv Co Ltd Electrostatic capacity type liquid level gage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978936U (en) * 1982-11-17 1984-05-28 株式会社ニチフ端子工業 liquid container
JPS59137824A (en) * 1983-01-28 1984-08-08 Tlv Co Ltd Electrostatic capacity type liquid level gage

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