Patent · US Active

Current sensor with alternating magnetic excitation

US7504820B2 · kind B2 · utility

1Cited by

3References

15Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Elisabeth Delevoye · Grenoble, FR
Marc Beranger · Biviers, FR

Key dates

Filing date	Jul 31, 2007
Grant date	Mar 17, 2009
Priority date	—
Expiry date	Jul 31, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH01F2027/2809
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A current measurement device includes a current sensor including a magnetic circuit, a plurality of windings including at least one excitation winding charged with the excitation of the magnetic circuit, and at least one detection winding. The sensor is equipped with windings forming a transformer of which at least one primary winding opposite the magnetic circuit through which a current I to be measured is designed to enter, and at least one secondary winding opposite the magnetic circuit capable of producing a counter reaction magnetic field.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.