In-plane sensing Lorentz force magnetometer
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United States of America Patent
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May 30, 2017
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N/A
app pub date -
Dec 31, 2012
filing date -
Jan 11, 2011
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Abstract
A magnetic field sensor includes a driving element through which an electric current circumnavigates the driving element. A Lorentz force acts on the driving element resulting in a torque about a first axis in response to a magnetic field along a second axis substantially parallel to a plane of a substrate. The driving element is coiled-shaped. A sensing element of the magnetic field sensor is configured to rotate about the first axis substantially parallel to the plane of the substrate in response to the magnetic field and a coupling element mechanically couples the driving element to the sensing element. The driving element, the sensing element, and the coupling element are disposed in the plane, substantially parallel to the substrate. At least two anchors are configured to connect the driving element, the sensing element, and the coupling element to the substrate.
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