Electricity meter protection circuit - using magnetic field recording element to indicate possible falsification of readings

Electricity meter protection circuit - using magnetic field recording element to indicate possible falsification of readings

The method detects if an electricity meter has been subjected to a strong magnetic field in order to falsify the reading of energy consumed. It consists of incorporating a permanently magnetic material in the plastic casing in such a way that a small mark dependent on the magnetisation of this mater...

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Hauptverfasser: KLABUNDE,JUERGEN, BLUMENTHAL,ECKHARD, DELLIEHAUSEN,KLAUS,.DR, KRAEKEL,GERD
Format: Patent
Sprache:eng ; ger
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator KLABUNDE,JUERGEN
BLUMENTHAL,ECKHARD
DELLIEHAUSEN,KLAUS,.DR
KRAEKEL,GERD
description The method detects if an electricity meter has been subjected to a strong magnetic field in order to falsify the reading of energy consumed. It consists of incorporating a permanently magnetic material in the plastic casing in such a way that a small mark dependent on the magnetisation of this material can be examined when the meter is read. Any change or obliteration of this mark can be observed either with a probe or magnifying apparatus, and this signifies previous application of a magnetic field.
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Electricity meter protection circuit - using magnetic field recording element to indicate possible falsification of readings
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