Methode Electronics, Incorporated

Timothy J Moran

Frank Ursetta

Azizur Rahaman

A magnetoelastic sensor. The magnetoelastic sensor uses strain-induced magnetic anisotropy to measure the tension or compression present in a plate. During construction, an annular region of the plate is magnetized with a circumferential magnetization. Magnetic field sensors are placed near this magnetized band at locations where the magnetization direction is non-parallel and non-perpendicular to the axis of tension. The strain-induced magnetic anisotropy caused by tension or compression then produces a shift in the magnetization direction in the plate regions near the field sensors, thereby causing magnetic field changes which are detected by the magnetic field sensors. The magnetic field sensors are connected to an electronic circuit which outputs a voltage signal which indicates the tension or compression in the plate.

Magnetoelastic sensor using strain-induced magnetic anisotropy to measure the tension or compression present in a plate

A system and method for determining the state of health of a battery. In particular, the present invention is related to a system and method for determining the state of health of an electrochemical battery cell by obtaining state of charge measurements for the battery cell, and using the state of charge measurements to calculate the state of health of the battery cell, wherein the state of charge measurements are based on the magnetic susceptibility of the battery cell. The system includes a sensing device for measuring the magnetic susceptibility of the battery cell, and a computing device for performing the steps of the disclosed method.

System and method for determining the state of health of electrochemical battery cells

A system and method for creating one or more magnetically conditioned regions on a rotatable shaft or disk-shaped torque sensing element, wherein rotation noise produced by the element due to magnetic field variations is substantially negated. Upon magnetization of the torque sensing element, rotation noise produced by the magnetically conditioned region is measured. Adjustment factors are calculated based on the measured rotation noise, and the adjustment factors are used to adjust a magnetic field source during subsequent magnetization of the torque sensing element.

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Chicago, IL, United States of America

Timothy J Moran