WO2003065055B1 - Magnetic field detection system for an electricity meter - Google Patents

Magnetic field detection system for an electricity meter

Info

Publication number
WO2003065055B1
WO2003065055B1 PCT/SI2003/000003 SI0300003W WO03065055B1 WO 2003065055 B1 WO2003065055 B1 WO 2003065055B1 SI 0300003 W SI0300003 W SI 0300003W WO 03065055 B1 WO03065055 B1 WO 03065055B1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic field
field density
measuring device
density
threshold detector
Prior art date
Application number
PCT/SI2003/000003
Other languages
French (fr)
Other versions
WO2003065055A2 (en
WO2003065055A3 (en
Inventor
Janko Burgar
Matko Jensterle
Damjan Chvatal
Stane Straus
Milan Vrbica
Miro Rozman
Damjan Jeruc
Suraija Binti Akmaruddin
Original Assignee
Iskraemeco Merjenje In Upravlj
Janko Burgar
Matko Jensterle
Damjan Chvatal
Stane Straus
Milan Vrbica
Miro Rozman
Damjan Jeruc
Suraija Binti Akmaruddin
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 Iskraemeco Merjenje In Upravlj, Janko Burgar, Matko Jensterle, Damjan Chvatal, Stane Straus, Milan Vrbica, Miro Rozman, Damjan Jeruc, Suraija Binti Akmaruddin filed Critical Iskraemeco Merjenje In Upravlj
Priority to AU2003238703A priority Critical patent/AU2003238703A1/en
Publication of WO2003065055A2 publication Critical patent/WO2003065055A2/en
Publication of WO2003065055A3 publication Critical patent/WO2003065055A3/en
Publication of WO2003065055B1 publication Critical patent/WO2003065055B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02—Constructional details
    • G01R11/24—Arrangements for avoiding or indicating fraudulent use

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

In a measuring device, adapted for avoiding fraudulent use through an application of an interefering magnetic field, a magnetic field density threshold detector (1a', 1a'') is constructed as a release (1a', 1a'') made as a ferromagnetic flexible strip which is fixed at one end and which, influenced by the magnetic field with a field density above threshold field density, is drawn away from below an end of an indicating drop strip (3a), which is rotatingly fastened at its other end and which indicates whether magnetic field with a field density above threshold field density has been detected.In preferred embodiments of the measuring device it is possible to prove beyond ambiguity whether its interior was exposed to an interfering magnetic field with such field density that the functioning of the measuring device was incorrect or disturbed.

Claims

AMENDED CLAIMS[Received by the International Bureau on 16 September 2003 (16.09.03): original claims 1 - 10 have been replaced by claim 1. [2 pages] *
1. Measuring device, for example an electric energy meter, adapted for avoiding fraudulent use through an application of an interefering magnetic field and being provided with at least one magnetic field density threshold detector (lh', lh") placed within a sealed casing (C) of the measuring device, which magnetic field density threshold detector (lh', lh") is connected to an automatically non-erasable indicating device, so that hereby an automatically nonerasable indication of detection of the magnetic field with field density above threshold field density is performed, characterized in that the magnetic field density threshold detector and at the same time the automatically non-erasable indicating device are constructed as a ferromagnetic material foil (lh', lh") fastened inside the casing (C), a change in the foil magnetic moment indicating whether magnetic field with field density above threshold field density has been detected.
PCT/SI2003/000003 2002-01-31 2003-01-30 Magnetic field detection system for an electricity meter WO2003065055A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003238703A AU2003238703A1 (en) 2002-01-31 2003-01-30 Magnetic field detection system for an electricity meter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SI200200022A SI21151A (en) 2002-01-31 2002-01-31 Meter, for example power meter, adapted to prevent misuse by interfering magnetic fields
SIP-200200022 2002-01-31

Publications (3)

Publication Number Publication Date
WO2003065055A2 WO2003065055A2 (en) 2003-08-07
WO2003065055A3 WO2003065055A3 (en) 2004-03-18
WO2003065055B1 true WO2003065055B1 (en) 2004-04-22

Family

ID=27656695

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2003/000003 WO2003065055A2 (en) 2002-01-31 2003-01-30 Magnetic field detection system for an electricity meter

Country Status (3)

Country Link
AU (1) AU2003238703A1 (en)
SI (1) SI21151A (en)
WO (1) WO2003065055A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0625939D0 (en) * 2006-12-27 2007-02-07 Polymeters Response Internat L Magnetic field indicator and utility meter incorporating the same
CN101865957B (en) * 2009-04-14 2012-06-27 深圳长城开发科技股份有限公司 Method and device for detecting electric discharge interference and electric energy meter provided with the device
WO2011062627A2 (en) * 2009-11-19 2011-05-26 Silver Spring Networks, Inc. Utility network interface device configured to detect and report abnormal operating condition
US8368555B2 (en) 2009-11-19 2013-02-05 Silver Spring Networks, Inc. Utility network interface device configured to detect and report abnormal operating condition
US8305232B2 (en) 2009-11-19 2012-11-06 Silver Spring Networks, Inc. Utility network interface device configured to detect and report abnormal operating condition
US8423637B2 (en) 2010-08-06 2013-04-16 Silver Spring Networks, Inc. System, method and program for detecting anomalous events in a utility network
CN102565475B (en) * 2012-01-18 2014-06-18 国家电网公司 Electricity stealing prevention device for electric energy meter
ITRM20130229A1 (en) 2013-04-17 2014-10-18 Bitron Spa DETECTED OR MEASURED MEASUREMENT EQUIPMENT.
CN103257257A (en) * 2013-05-03 2013-08-21 山东菲达电器有限公司 Electricity larceny prevention low-voltage measuring cabinet
FR3024549B1 (en) * 2014-07-30 2018-02-02 Sagemcom Energy & Telecom Sas COUNTER ELECTRIC COUNTER TYPE
CN105425004B (en) * 2015-12-23 2019-03-01 深圳市金正方科技股份有限公司 Electric energy measuring equipment and its stealing event detecting method, device
ES2803652T3 (en) * 2016-04-21 2021-01-28 Consejo Superior Investigacion Meter fraud detection device and related method
JP6614100B2 (en) * 2016-11-01 2019-12-04 オムロン株式会社 Electricity meter and method of identifying the electricity meter fire location
CN110658486A (en) * 2019-09-27 2020-01-07 杭州海兴电力科技股份有限公司 Antimagnetic detection device of secondary electric power metering equipment

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535466C3 (en) * 1975-08-08 1982-04-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Arrangement to enable the detection of improper magnetic influence on measuring devices, especially electricity meters
CH604183A5 (en) * 1977-06-03 1978-08-31 Landis & Gyr Ag
DE2906621A1 (en) * 1979-02-21 1980-09-04 Licentia Gmbh Electricity supply meter with protection against tampering - has device to detect and compensate for the influence of foreign magnetic field using shorted turns
US4542337A (en) * 1982-09-30 1985-09-17 Honeywell Inc. Electro-mechanical anti-tampering device for electric meters
US5086292A (en) * 1989-10-31 1992-02-04 Iris Systems Inc. Tamper detection device for utility meter
FR2701122B1 (en) * 1993-01-29 1995-04-14 Sagem Magnetic bubble device to detect and memorize the movement of a part.
US5910774A (en) * 1996-09-18 1999-06-08 Itron, Inc. Sensor for count and tamper detection
GB2334338A (en) * 1998-02-12 1999-08-18 Abb Metering Syst Ltd Tamper detection in electro-mechanical electricity consumption meters
FR2777079B1 (en) * 1998-04-06 2000-05-12 Schlumberger Ind Sa DEVICE FOR DETECTING THE OPENING OF A COUNTER
GB2347225A (en) * 1999-02-25 2000-08-30 C K Electronics Sdn Bhd Electric utility meter with means to detect and report theft
GB9920241D0 (en) * 1999-08-27 1999-10-27 Breed Automotive Tech Multi pole activation magnetic rotary sensing device

Also Published As

Publication number Publication date
WO2003065055A2 (en) 2003-08-07
AU2003238703A1 (en) 2003-09-02
WO2003065055A3 (en) 2004-03-18
SI21151A (en) 2003-08-31

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