WO2008078108A3 - Magnetic field indicator and utility meter incorporating the same - Google Patents

Magnetic field indicator and utility meter incorporating the same Download PDF

Info

Publication number
WO2008078108A3
WO2008078108A3 PCT/GB2007/005006 GB2007005006W WO2008078108A3 WO 2008078108 A3 WO2008078108 A3 WO 2008078108A3 GB 2007005006 W GB2007005006 W GB 2007005006W WO 2008078108 A3 WO2008078108 A3 WO 2008078108A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic field
utility meter
same
field indicator
meter incorporating
Prior art date
Application number
PCT/GB2007/005006
Other languages
French (fr)
Other versions
WO2008078108A2 (en
Inventor
Andrew James
Original Assignee
Polymeters Response Internat L
Andrew James
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 Polymeters Response Internat L, Andrew James filed Critical Polymeters Response Internat L
Publication of WO2008078108A2 publication Critical patent/WO2008078108A2/en
Publication of WO2008078108A3 publication Critical patent/WO2008078108A3/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux

Abstract

A device is disclosed for indicating the application of a magnetic field to an apparatus, the device comprising a magnetically conductive member (4) arranged in a first position, the member being movable to a second position (fig. 2) on application of a magnetic field with a magnitude above a predetermined threshold, and means for maintaining the member in the second position on removal of the magnetic field. The device is suited for use in a utility meter where attempts may be made to fraudulently effect the detection of the utility consumption by an external magnetic field.
PCT/GB2007/005006 2006-12-27 2007-12-27 Magnetic field indicator and utility meter incorporating the same WO2008078108A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0625939.4 2006-12-27
GB0625939A GB0625939D0 (en) 2006-12-27 2006-12-27 Magnetic field indicator and utility meter incorporating the same

Publications (2)

Publication Number Publication Date
WO2008078108A2 WO2008078108A2 (en) 2008-07-03
WO2008078108A3 true WO2008078108A3 (en) 2008-08-28

Family

ID=37759080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/005006 WO2008078108A2 (en) 2006-12-27 2007-12-27 Magnetic field indicator and utility meter incorporating the same

Country Status (2)

Country Link
GB (1) GB0625939D0 (en)
WO (1) WO2008078108A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102637503B (en) * 2012-05-22 2013-06-12 中国人民解放军总参谋部工程兵科研三所 Erection method of indoor large-scale magnetic field generator
ITRM20130229A1 (en) * 2013-04-17 2014-10-18 Bitron Spa DETECTED OR MEASURED MEASUREMENT EQUIPMENT.

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE67608C (en) * Dr. med. lütje, prakt. Arzt, in Altona, Gr. Bergstrafse 244 Device for displaying attempts to influence electricity meters
AT52438B (en) * 1911-05-06 1912-02-26 Karl Wolf Device for determining attempts to influence electricity meters by magnets or magnetic fields.
DE941080C (en) * 1952-04-06 1956-04-05 Siemens Ag Device to display an improper use of tariff switching devices or control switches for cheaper electricity through external interference
DE2535466A1 (en) * 1975-08-08 1977-02-17 Licentia Gmbh Electricity meter protection circuit - using magnetic field recording element to indicate possible falsification of readings
DE2728896A1 (en) * 1977-06-03 1978-12-07 Landis & Gyr Ag Electricity meter unauthorised magnetic interference detector - undergoes permanent change in magnetic field using either magnetically-operated leaf microswitch or resonant circuit
FR2554243A1 (en) * 1983-10-26 1985-05-03 Enertec Bistable electromagnetic display device
US4542337A (en) * 1982-09-30 1985-09-17 Honeywell Inc. Electro-mechanical anti-tampering device for electric meters
US4583483A (en) * 1982-09-30 1986-04-22 Honeywell Inc. Mechanical meter tampering indicator
WO2003065055A2 (en) * 2002-01-31 2003-08-07 Iskraemeco, Merjenje In Upravljanje Energije, D.D. Magnetic field detection system for an electricity meter
DE20313083U1 (en) * 2002-09-17 2003-10-30 Welter Peter Gmbh & Co Kg Magnetic field investigation device for detecting, visualizing and documenting the effects of a magnetic field on a metallic test component, e.g. a utility meter, magnetic field sensor or magnetic data medium

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE67608C (en) * Dr. med. lütje, prakt. Arzt, in Altona, Gr. Bergstrafse 244 Device for displaying attempts to influence electricity meters
AT52438B (en) * 1911-05-06 1912-02-26 Karl Wolf Device for determining attempts to influence electricity meters by magnets or magnetic fields.
DE941080C (en) * 1952-04-06 1956-04-05 Siemens Ag Device to display an improper use of tariff switching devices or control switches for cheaper electricity through external interference
DE2535466A1 (en) * 1975-08-08 1977-02-17 Licentia Gmbh Electricity meter protection circuit - using magnetic field recording element to indicate possible falsification of readings
DE2728896A1 (en) * 1977-06-03 1978-12-07 Landis & Gyr Ag Electricity meter unauthorised magnetic interference detector - undergoes permanent change in magnetic field using either magnetically-operated leaf microswitch or resonant circuit
US4542337A (en) * 1982-09-30 1985-09-17 Honeywell Inc. Electro-mechanical anti-tampering device for electric meters
US4583483A (en) * 1982-09-30 1986-04-22 Honeywell Inc. Mechanical meter tampering indicator
FR2554243A1 (en) * 1983-10-26 1985-05-03 Enertec Bistable electromagnetic display device
WO2003065055A2 (en) * 2002-01-31 2003-08-07 Iskraemeco, Merjenje In Upravljanje Energije, D.D. Magnetic field detection system for an electricity meter
DE20313083U1 (en) * 2002-09-17 2003-10-30 Welter Peter Gmbh & Co Kg Magnetic field investigation device for detecting, visualizing and documenting the effects of a magnetic field on a metallic test component, e.g. a utility meter, magnetic field sensor or magnetic data medium

Also Published As

Publication number Publication date
WO2008078108A2 (en) 2008-07-03
GB0625939D0 (en) 2007-02-07

Similar Documents

Publication Publication Date Title
WO2006035342A8 (en) Magnetic sensor for input devices
EP2390651B8 (en) GMR biosensor with enhanced sensitivity
WO2009038161A1 (en) Origin detection device
EP1780505A3 (en) Magnetic field sensing device for compassing and switching
GB2489347A (en) Coordinate measurement device
WO2009040998A1 (en) Contactless charger
EP1821325A3 (en) Systems, devices and methods for arc fault detection
WO2008043250A8 (en) Smart coating for damage detected information, inspecting device and damage inspecting method using said coating
WO2008016386A3 (en) Pointing device with moveable magnetic disc and method
WO2009004319A3 (en) Eddy current sensor and signal processing
MX2016000129A (en) Magnetic tampering detection in a utility meter.
WO2009067573A3 (en) Apparatus and method for measuring the dimensions of the palpable surface of the prostate
FR2983968B1 (en) METHOD AND DEVICE FOR DETECTING ELECTRIC ARC IN A PHOTOVOLTAIC INSTALLATION
MX2009000544A (en) Electrochemical detection of magnetic particle mobility.
ATE525645T1 (en) DEVICE FOR DETECTING DAMAGE TO A TEST SPECIMEN MADE OF FERROMAGNETIC MATERIAL
WO2007053341A3 (en) Methods of implementing magnetic tunnel junction current sensors
WO2008078108A3 (en) Magnetic field indicator and utility meter incorporating the same
EP1780555A3 (en) Thin-film device for detection of physical quantities, in particular a magnetic field, and corresponding method of detection
WO2003065055A3 (en) Magnetic field detection system for an electricity meter
WO2008039743A3 (en) Wheatstone-bridge magnetoresistive device
ATE556422T1 (en) SWITCHING DEVICE WITH A MOVABLE FERROMAGNETIC PART
CN203224510U (en) Wind direction sensor
EP1750097A3 (en) Magnetic Sensor
EP1688715A3 (en) Lead to secure an energy usage measurement device
WO2008132992A1 (en) Magnetic detecting device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07848691

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07848691

Country of ref document: EP

Kind code of ref document: A2