Device, arrangement, and method for measuring a current intensity in a primary conductor through which current flows

US10018656B2 · kind B2 · utility

Assignee

• EPCOS AG · DE

Inventors

• Bernhard Ostrick · Teltow, DE
• Carsten Dehoff · Berlin, DE

Key dates

• Filing date: Oct 29, 2014
• Grant date: Jul 10, 2018
• Expiry date: Jan 1, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R19/0092
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A device, an arrangement, and a method for measuring a current intensity in a primary conductor through which current flows are disclosed. In an embodiment, an apparatus includes a magnetic field-generating element configured to generate a reference magnetic field; and a magnetic field angle-sensitive element configured to measure an orientation of a total magnetic field, the total magnetic field is produced by overlapping of the primary magnetic field and the reference magnetic field in space, wherein the primary magnetic field and the reference magnetic field are not parallel to one another at a location of the magnetic field angle-sensitive element, and wherein the current intensity of the current flowing through the primary conductor is determinable from the orientation of the total magnetic field in space.