Assembly for measuring at least one component of a magnetic field

US8957679B2 · kind B2 · utility

Assignee

• Sensitec GmbH · DE

Inventors

• Uwe Loreit · Wetzlar, DE
• Jochen Schmitt · Ludwigshütte, DE

Key dates

• Filing date: Feb 10, 2010
• Grant date: Feb 17, 2015
• Expiry date: Sep 25, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/096
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The assembly for measuring at least one component (x, y, z) of an applied magnetic field (H) including a surface area made of soft-magnetic material that is applied in the chip plane and separated into two partial regions (5) by a gap (6). The gap (6) is composed of gap sections having different longitudinal directions, and magnetic field sensitive elements (2) are accommodated in one or more gap sections disposed parallel to each other. The sensitivity direction (4) of the magnetic field sensitive elements (2) and the connecting line (6″) of the outer gap openings can form angles of 45° or 90°, and several surface areas can be present in the chip plane in order to completely capture all magnetic field components (x, y, z). Magnetoresistive sensor elements can advantageously be utilized as magnet-sensitive elements (2).