ZA954456B - Current measurement circuit comprising a mutually coupled transformer and an integration circuit - Google Patents

Current measurement circuit comprising a mutually coupled transformer and an integration circuit

Info

Publication number
ZA954456B
ZA954456B ZA954456A ZA954456A ZA954456B ZA 954456 B ZA954456 B ZA 954456B ZA 954456 A ZA954456 A ZA 954456A ZA 954456 A ZA954456 A ZA 954456A ZA 954456 B ZA954456 B ZA 954456B
Authority
ZA
South Africa
Prior art keywords
circuit
current measurement
integration circuit
mutually coupled
coupled transformer
Prior art date
Application number
ZA954456A
Other languages
English (en)
Inventor
Michel Dubin
Original Assignee
Schlumberger Ind Sa
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 Schlumberger Ind Sa filed Critical Schlumberger Ind Sa
Publication of ZA954456B publication Critical patent/ZA954456B/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/20—Increasing resolution using an n bit system to obtain n + m bits
    • H03M1/201—Increasing resolution using an n bit system to obtain n + m bits by dithering

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)
  • Burglar Alarm Systems (AREA)
  • Analogue/Digital Conversion (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Electrophonic Musical Instruments (AREA)
ZA954456A 1994-06-01 1995-05-31 Current measurement circuit comprising a mutually coupled transformer and an integration circuit ZA954456B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9406675A FR2720835B1 (fr) 1994-06-01 1994-06-01 Circuit de mesure de courant comprenant un transformateur à inductance mutuelle et un circuit intégrateur.

Publications (1)

Publication Number Publication Date
ZA954456B true ZA954456B (en) 1996-03-19

Family

ID=9463749

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA954456A ZA954456B (en) 1994-06-01 1995-05-31 Current measurement circuit comprising a mutually coupled transformer and an integration circuit

Country Status (14)

Country Link
US (1) US5574380A (el)
EP (1) EP0685743B1 (el)
CN (1) CN1052073C (el)
AT (1) ATE203830T1 (el)
CA (1) CA2150635C (el)
DE (1) DE69521938T2 (el)
DK (1) DK0685743T3 (el)
ES (1) ES2161837T3 (el)
FR (1) FR2720835B1 (el)
GR (1) GR3037034T3 (el)
HU (1) HU216994B (el)
PT (1) PT685743E (el)
RU (1) RU2160903C2 (el)
ZA (1) ZA954456B (el)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003085430A (ja) * 2001-09-12 2003-03-20 Hitachi Ltd 変圧器の受注支援方法
US7952343B2 (en) * 2005-12-15 2011-05-31 Chimei Innolux Corporation Current measurement circuit and method
DE102006038031A1 (de) * 2006-05-26 2007-11-29 Rohde & Schwarz Gmbh & Co. Kg Messvorrichtung und Messverfahren zum Messen der Hüllkurvenleistung und des Leistungsmittelwerts
CN103020379B (zh) * 2012-12-26 2016-12-28 中国科学院微电子研究所 一种对互连结构进行电容提取的方法
US20140285180A1 (en) * 2013-03-25 2014-09-25 National Instruments Corporation Circuit to Compensate for Inaccuracies in Current Transformers
CN105353203A (zh) * 2015-12-10 2016-02-24 成都宏凯瑞科技有限公司 一种基于带通滤波电路的多功能功率测试仪
JP2021016028A (ja) * 2019-07-10 2021-02-12 オムロン株式会社 Ａｄ変換装置、ａｄ変換方法および信号処理装置
WO2025136853A1 (en) * 2023-12-21 2025-06-26 Landis+Gyr Technology, Inc. Electricity meter

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU499662A1 (ru) * 1974-05-12 1976-01-15 Азербайджанский Институт Нефти И Химии Им.М.Азизбекова Аналого-цифровой преобразователь мощности и действующего значени переменного напр жени
SU581437A1 (ru) * 1976-04-19 1977-11-25 Пензенский Политехнический Институт Преобразователь активной мощности и квадрата действующего значени переменного напр жени в интервал времени
US4187466A (en) 1978-01-16 1980-02-05 Rolm Corporation Signal injection technique
US4255707A (en) * 1979-08-07 1981-03-10 Westinghouse Electric Corp. Electrical energy meter
ATE17175T1 (de) * 1980-09-01 1986-01-15 South Eastern Elec Board Verfahren und geraet zum umwandeln einer analogen spannung in eine digitale darstellung.
US4467320A (en) * 1982-05-06 1984-08-21 The Bendix Corporation Measurement of a linear variable differential transformer signal by phase conversion
DE3490349T1 (de) * 1983-08-01 1985-09-19 Robinton Products, Inc., Sunnyvale, Calif. Verfahren und Anordnung zur Leistungsmessung
GB8426822D0 (en) * 1984-10-23 1984-11-28 Day S Static electricity meter
FR2648565B1 (fr) * 1989-06-16 1991-10-11 Schlumberger Ind Sa Circuit d'entree pour compteur d'energie electrique
IT1240168B (it) * 1990-04-05 1993-11-27 Marelli Autronica Sistema di conversione analogico/digitale a risoluzione incrementata.
US5265267A (en) * 1991-08-29 1993-11-23 Motorola, Inc. Integrated circuit including a surface acoustic wave transformer and a balanced mixer
US5180979A (en) * 1991-10-07 1993-01-19 Honeywell Inc. Position measurement sensor using a linear variable differential transformer with a triangular pulse input and output
JPH06130098A (ja) * 1992-09-07 1994-05-13 Mitsubishi Electric Corp 電子式電力量計等の信号入力制御方法および装置
ES2125961T3 (es) 1993-02-26 1999-03-16 Schlumberger Ind Sa Convertidor de analogico a digital con una señal de activacion modulada.

Also Published As

Publication number Publication date
DE69521938D1 (de) 2001-09-06
RU2160903C2 (ru) 2000-12-20
DK0685743T3 (da) 2001-11-12
HUT72215A (en) 1996-03-28
HU216994B (hu) 1999-10-28
CN1116309A (zh) 1996-02-07
CA2150635C (en) 2002-11-05
US5574380A (en) 1996-11-12
EP0685743A1 (en) 1995-12-06
DE69521938T2 (de) 2002-04-04
FR2720835A1 (fr) 1995-12-08
HU9501594D0 (en) 1995-07-28
EP0685743B1 (en) 2001-08-01
CA2150635A1 (en) 1995-12-02
ATE203830T1 (de) 2001-08-15
CN1052073C (zh) 2000-05-03
RU95108873A (ru) 1997-02-10
ES2161837T3 (es) 2001-12-16
GR3037034T3 (en) 2002-01-31
FR2720835B1 (fr) 1996-07-12
PT685743E (pt) 2002-01-30

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