Magneto-elastic sensor, load pin, ball-joint and tow coupling comprising this sensor, method of determining a direction of a load vector

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United States of America Patent

PATENT NO 9347845
APP PUB NO 20140360282A1
SERIAL NO

14251760

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A magneto elastic sensor having a longitudinally extending shaft like member which is subject to a load, is provided. A magneto-elastically active region is directly or indirectly attached to or forming a part of the member in such a manner that the mechanic stress is transmitted to the active region. A magnetically polarized region of the active region becomes increasingly helically shaped as the application stress increases. A magnetic field sensor is arranged approximate the magneto-elastically active region for outputting a signal corresponding to a stress induced magnetic flux emanating from the magnetically polarized region. The magnetic sensor determines one out of a shear stress and a compressive stress. The magnetic sensor can include at least one direction sensitive magnetic field sensor, which is arranged having a predetermined and fixed spatial coordination with the member.

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Patent Owner(s)

Patent OwnerAddress
METHODE ELECTRONICS MALTA LTDBIRKIRKARA CBD 4070

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gieβibl, Johannes Mriehel, MT 5 47

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