Patent · US Active

Current measuring apparatus and methods

US10788517B2 · kind B2 · utility

0Cited by

17References

20Claims

0Family size

Assignee

Analog Devices Global Unlimited Company · BM

Inventors

Paul Blanchard, III · Westford, US
Jochen Schmitt · Ludwigshütte, DE
Yogesh Sharma · Boise, US
Victor L. Iseli · Everett, US

Key dates

Filing date	Nov 14, 2017
Grant date	Sep 29, 2020
Priority date	—
Expiry date	Aug 20, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01R15/207
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Magnetic sensors may be positioned around an opening for a wire to measure the current flowing through the wire. A non-symmetric positioning of the sensors around the target measurement zone can enable an expanded measurement zone compared to conventional current measurement devices. Further, some sensors may be paired such that a hypothetical line connecting the sensors is tangential to the target measurement zone. Other sensors may be paired such that a hypothetical line between the sensors crosses the target measurement zone. The different pairs of the sensors can enable a reduction in the impact of stray field interference on the measurement of the current flowing through the wire.

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