CA2239369A1 - Electronic measurement device - Google Patents

Electronic measurement device

Info

Publication number
CA2239369A1
CA2239369A1 CA002239369A CA2239369A CA2239369A1 CA 2239369 A1 CA2239369 A1 CA 2239369A1 CA 002239369 A CA002239369 A CA 002239369A CA 2239369 A CA2239369 A CA 2239369A CA 2239369 A1 CA2239369 A1 CA 2239369A1
Authority
CA
Canada
Prior art keywords
measuring device
provision
measurement device
correction factor
stored
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
CA002239369A
Other languages
French (fr)
Other versions
CA2239369C (en
Inventor
Klaus Windsheimer
Georg Grimm
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.)
Siemens AG
Original Assignee
Siemens Aktiengesellschaft
Klaus Windsheimer
Georg Grimm
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 Siemens Aktiengesellschaft, Klaus Windsheimer, Georg Grimm filed Critical Siemens Aktiengesellschaft
Publication of CA2239369A1 publication Critical patent/CA2239369A1/en
Application granted granted Critical
Publication of CA2239369C publication Critical patent/CA2239369C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
    • 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

Abstract

In order to achieve an improvement in measurement accuracy for an electronic measuring device (1), whilst at the same time compensating for influences on the measurements, provision is made for a correction factor (K1) to be stored in a correction element (7a) when the measuring device (1) is first set up.
During operation, provision is made for a test voltage (Vt) to be connected which is compared with a reference value (R1) stored during setting. If there is a difference between the two values (R1,R2), a new correction factor (K1,K2) is produced which compensates for any measurement signal effect.
The measuring device (1) is particularly suitable for electricity meters.
CA002239369A 1995-12-05 1996-11-20 Electronic measurement device Expired - Fee Related CA2239369C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19545511.8 1995-12-05
DE19545511 1995-12-05
PCT/DE1996/002215 WO1997021106A2 (en) 1995-12-05 1996-11-20 Electronic measurement device

Publications (2)

Publication Number Publication Date
CA2239369A1 true CA2239369A1 (en) 1997-06-12
CA2239369C CA2239369C (en) 2003-02-04

Family

ID=7779351

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002239369A Expired - Fee Related CA2239369C (en) 1995-12-05 1996-11-20 Electronic measurement device

Country Status (6)

Country Link
US (1) US6084394A (en)
EP (1) EP0866976B1 (en)
CA (1) CA2239369C (en)
DE (1) DE59606645D1 (en)
ES (1) ES2155218T3 (en)
WO (1) WO1997021106A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6566882B2 (en) 2001-06-29 2003-05-20 Hubbell Incorporated Method and apparatus for device-dependent calibration of relays for high accuracy operation at zero-crossing of input power signal
US6815942B2 (en) * 2001-09-25 2004-11-09 Landis+Gyr, Inc. Self-calibrating electricity meter
US6748344B2 (en) 2002-04-29 2004-06-08 Eaton Corporation Method and apparatus employing a scaling factor for measuring and displaying an electrical parameter of an electrical system
JP2004021067A (en) * 2002-06-19 2004-01-22 Sanyo Electric Co Ltd Liquid crystal display and method for adjusting the same
US6996488B2 (en) * 2002-10-15 2006-02-07 Advanced Custom Sensors, Inc. Sensor signal conditioner
US7164355B2 (en) * 2004-05-19 2007-01-16 Rosemount Inc. Process transmitter with a plurality of operating modes
US7511468B2 (en) * 2006-11-20 2009-03-31 Mceachern Alexander Harmonics measurement instrument with in-situ calibration
US7920976B2 (en) * 2007-03-27 2011-04-05 Electro Industries / Gauge Tech. Averaging in an intelligent electronic device
DE102007045416A1 (en) * 2007-09-21 2009-04-02 Continental Teves Ag & Co. Ohg Electronic circuit for correcting at least one digital measurement signal
DE102011102185B4 (en) 2011-05-21 2018-09-13 Bob Holding Gmbh Voltage-dependent counter
ES2787825T3 (en) * 2012-10-12 2020-10-19 Alstom Transp Tech Automatic calibration of the energy meter central unit
US9677907B2 (en) * 2013-03-14 2017-06-13 Itron Inc Intelligent receptacle
US8981972B2 (en) * 2013-03-14 2015-03-17 Analog Devices, Inc. Background calibration of ADC reference voltage due to input signal dependency
CN114121121B (en) * 2022-01-27 2022-04-26 合肥悦芯半导体科技有限公司 Test circuit

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824588A (en) * 1973-02-09 1974-07-16 Us Navy Analog to digital converter having digital offset correction
DE2630959C2 (en) * 1976-07-07 1986-04-30 Heliowatt Werke Elektrizitäts- Gesellschaft mbH, 1000 Berlin Kilowatt hour meter with static measuring mechanism
US4200933A (en) * 1976-07-30 1980-04-29 Systron-Donner Corporation Method of automatically calibrating a microprocessor controlled digital multimeter
US4127811A (en) * 1976-09-03 1978-11-28 Hewlett-Packard Company Auto-calibrating voltmeter
DE2708075A1 (en) * 1977-02-22 1978-08-24 Heliowatt Werke PROCEDURE FOR ELECTRONIC KILOWATT-HOUR METERS
JPS60110006A (en) * 1983-11-18 1985-06-15 Ohkura Electric Co Ltd Multi-range controller
DK152458C (en) * 1984-11-20 1988-07-25 Total Electronic Enterprise STATIC ELECTRIC ELECTRIC MEASUREMENT FOR POWER AND ENERGY MEASURED FROM A POWER SUPPLY NETWORK
CH673714A5 (en) * 1985-05-02 1990-03-30 Zellweger Uster Ag
EP0240102A3 (en) * 1986-03-31 1988-07-27 Robinton Products Inc. Power meter having self-test function
US4800513A (en) * 1986-08-01 1989-01-24 Motorola, Inc. Auto-calibrated sensor system
US4951052A (en) * 1989-07-10 1990-08-21 General Electric Company Correction of systematic error in an oversampled analog-to-digital converter
US5122735A (en) * 1990-06-14 1992-06-16 Transdata, Inc. Digital power metering
DE4334766A1 (en) * 1993-10-12 1995-04-13 Siemens Ag Electronic measuring device

Also Published As

Publication number Publication date
DE59606645D1 (en) 2001-04-26
EP0866976A2 (en) 1998-09-30
ES2155218T3 (en) 2001-05-01
EP0866976B1 (en) 2001-03-21
US6084394A (en) 2000-07-04
CA2239369C (en) 2003-02-04
WO1997021106A2 (en) 1997-06-12
WO1997021106A3 (en) 1997-08-07

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed