CA1285322C - Digital measuring instrument - Google Patents

Digital measuring instrument

Info

Publication number
CA1285322C
CA1285322C CA000550344A CA550344A CA1285322C CA 1285322 C CA1285322 C CA 1285322C CA 000550344 A CA000550344 A CA 000550344A CA 550344 A CA550344 A CA 550344A CA 1285322 C CA1285322 C CA 1285322C
Authority
CA
Canada
Prior art keywords
output
digital
measuring instrument
filter
supply system
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.)
Expired - Lifetime
Application number
CA000550344A
Other languages
English (en)
French (fr)
Inventor
Klaus-Peter Brand
Jurgen Kopainsky
Fritz Wittwer
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Application granted granted Critical
Publication of CA1285322C publication Critical patent/CA1285322C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2513—Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Control Of Electrical Variables (AREA)
CA000550344A 1986-11-04 1987-10-27 Digital measuring instrument Expired - Lifetime CA1285322C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4361/86A CH672374A5 (en, 2012) 1986-11-04 1986-11-04
CH4361/86-0 1986-11-04

Publications (1)

Publication Number Publication Date
CA1285322C true CA1285322C (en) 1991-06-25

Family

ID=4274664

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000550344A Expired - Lifetime CA1285322C (en) 1986-11-04 1987-10-27 Digital measuring instrument

Country Status (6)

Country Link
US (1) US4878185A (en, 2012)
EP (1) EP0269827B1 (en, 2012)
JP (1) JPS63128269A (en, 2012)
CA (1) CA1285322C (en, 2012)
CH (1) CH672374A5 (en, 2012)
DE (1) DE3788565D1 (en, 2012)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0312715A1 (de) * 1987-09-18 1989-04-26 Siemens Aktiengesellschaft Schaltungsanordnung zur Bestimmung der Leistung eines frequenzbandbegrenzten periodischen Signals
JPH02311902A (ja) * 1989-05-29 1990-12-27 Matsushita Electric Ind Co Ltd ディジタル制御装置
DE3928083A1 (de) * 1989-08-25 1991-02-28 Rohde & Schwarz Schaltung zum messen einer von dem quadratischen mittelwert einer wechselspannung abgeleiteten messgroesse, insbesondere des effektivwerts einer wechselspannung
DE69027292T2 (de) * 1990-01-16 1997-01-23 Hitachi Ltd Verfahren und System zur digitalen Signalverarbeitung.
CH683721A5 (de) * 1990-05-03 1994-04-29 Landis & Gyr Business Support Verfahren zur Ermittlung von Schätzwerten der Momentanwerte von Parametern mindestens eines sinusförmigen Signals mit konstanter und vorbekannter Frequenz.
JP3080207B2 (ja) * 1993-01-06 2000-08-21 三菱電機株式会社 電子式電力量計
DE4402762C1 (de) * 1994-01-26 1995-06-22 Siemens Ag Verfahren zum Erfassen des Stromes in einem Leiter eines Wechselstrom-Energieübertragungsnetzes
JP4089984B2 (ja) * 1994-08-31 2008-05-28 ローム株式会社 サンプルホールド回路
US5650936A (en) * 1994-12-30 1997-07-22 Cd Power Measurement Limited Power monitor apparatus and method with object oriented structure
US5736847A (en) * 1994-12-30 1998-04-07 Cd Power Measurement Limited Power meter for determining parameters of muliphase power lines
DE19613735A1 (de) * 1996-03-29 1997-10-02 Siemens Ag Verfahren zum Erzeugen eines einer elektrischen Wirkleistung proportionalen Meßsignals
DE19613732B4 (de) * 1996-03-29 2004-01-29 Siemens Ag Verfahren zum Erzeugen eines einer elektrischen Blindleistung proportionalen Meßsignals
DE19613736C1 (de) * 1996-03-29 1997-08-21 Siemens Ag Verfahren zum Erzeugen eines dem Effektivwert eines periodischen elektrischen Signals proportionalen Meßsignals
EP0862060A3 (en) * 1997-02-18 1999-04-07 Fluke Corporation RMS converter using digital filtering
US5930745A (en) * 1997-04-09 1999-07-27 Fluke Corporation Front-end architecture for a measurement instrument
US6064193A (en) * 1997-07-17 2000-05-16 Tektronix, Inc. Method and apparatus for measuring the mean square value of an electrical signal
US6397155B1 (en) 1999-08-09 2002-05-28 Power Measurement Ltd. Method and apparatus for automatically controlled gain switching of monitors
US6798191B1 (en) 1999-08-09 2004-09-28 Power Measurement Ltd. Revenue meter with a graphic user interface being operative to display scalable objects
US6825776B2 (en) 1999-08-09 2004-11-30 Power Measurement Ltd. External I/O and communications interface for a revenue meter
US6186842B1 (en) 1999-08-09 2001-02-13 Power Measurement Ltd. Revenue meter bayonet assembly and method of attachment
US6493644B1 (en) 1999-08-09 2002-12-10 Power Measurement Ltd. A-base revenue meter with power quality features
US6611922B2 (en) 1999-08-09 2003-08-26 Power Measurement, Ltd. Power system time synchronization device and method for sequence of event recording
US6615147B1 (en) 1999-08-09 2003-09-02 Power Measurement Ltd. Revenue meter with power quality features
DE19958938A1 (de) * 1999-12-08 2001-06-13 Berthold Kusserow Verfahren und Meßeinrichtung zur Überwachung des Stroms elektrischer Leiter
DE19959939C2 (de) * 1999-12-13 2003-04-17 Siemens Ag Verfahren zur Bestimmmung der Drehzahl einer Brennkraftmaschine
EP1339153B1 (de) * 2002-02-19 2011-10-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Einrichtung zum Anschluss eines Gebäudes oder dgl. an ein elektrisches Niederspannungsnetz
ES2215467B1 (es) * 2002-09-13 2005-12-16 Consejo Sup. De Investig. Cientificas Aparato y metodo de medida de magnitudes electricas en una red trifasica.
WO2004025310A1 (es) * 2002-09-13 2004-03-25 Consejo Superior De Investigaciones Científicas Aparato y método de medida de la calidad de señales eléctricas en una red trifásica
US8010304B2 (en) * 2008-10-03 2011-08-30 Analog Devices, Inc. Apparatus and method for measuring active and reactive powers
US8868364B2 (en) 2011-04-29 2014-10-21 Analog Devices, Inc. Apparatus and method for real time harmonic spectral analyzer
US8907655B2 (en) 2011-04-29 2014-12-09 Analog Devices, Inc. System and method for detecting a fundamental frequency of an electric power system
CN102331535B (zh) * 2011-06-09 2014-06-04 郝玉山 交流电物理量测量和数据采集装置和方法
JP2017021055A (ja) * 2016-10-28 2017-01-26 株式会社ダイヘン 不平衡率検出装置、および不平衡率検出方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015262A (en) * 1974-12-30 1977-03-29 Northrop Corporation Digital filters for obtaining quadrature components of a periodic signal
DE2511027C2 (de) * 1975-03-13 1982-07-08 Siemens AG, 1000 Berlin und 8000 München Selektiver Überlagerungsempfänger
US4331882A (en) * 1980-03-17 1982-05-25 Electric Power Research Institute, Inc. Method and means for detecting spurious electrical signals in an electrical power system
DE3045033A1 (de) * 1980-11-26 1982-07-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anordnung zur bestimmung der zeitlichen mittelwerte von analogen messwerten
EP0063402A1 (en) * 1981-04-21 1982-10-27 Scientific Columbus, Inc. Multi-function electricity billing meter
US4488240A (en) * 1982-02-01 1984-12-11 Becton, Dickinson And Company Vibration monitoring system for aircraft engines
DE3338193C2 (de) * 1983-10-20 1987-05-14 Institut für Rundfunktechnik GmbH, 8000 München Schaltungsanordnung zum Messen des Quantisierungsrauschens oder des Leerkanalrauschens oder der Gesamtverzerrung eines digital arbeitenden Audiogerätes
DE3437303C2 (de) * 1984-10-11 1987-03-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur meßtechnischen Erfassung von Klirreffekten an einem elektroakustischen Wandler, insbesondere Lautsprecher oder Kopfhörer
US4730257A (en) * 1985-01-25 1988-03-08 Szeto Lai Wan M Apparatus for analyzing signals, to obtain parameters of constituents
DE3528046A1 (de) * 1985-08-05 1987-02-05 Bbc Brown Boveri & Cie Rundsteuerempfaenger
US4695792A (en) * 1985-12-16 1987-09-22 Ecole Polytechnique Method and system for measuring the amplitude and phase angle of harmonics in a periodic signal

Also Published As

Publication number Publication date
EP0269827B1 (de) 1993-12-22
DE3788565D1 (de) 1994-02-03
EP0269827A1 (de) 1988-06-08
CH672374A5 (en, 2012) 1989-11-15
JPS63128269A (ja) 1988-05-31
US4878185A (en) 1989-10-31

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