Magnetic force sensor sensing magnetic flux to calculate forces
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United States of America Patent
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Feb 10, 2015
Grant Date -
Nov 1, 2012
app pub date -
Dec 8, 2010
filing date -
Dec 15, 2009
priority date (Note) -
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Abstract
There is provided a magnetic force sensor including: an action unit elastically supported by a supporting member; a magnetic-flux generating source including two or more magnets which are disposed so that a polarity of each of the magnetic-pole faces of the magnets is opposite to a polarity of a corresponding one of the magnetic-pole faces of the adjacent magnets in a particular direction; first magnetoelectric transducers that are individually provided at positions, the positions being positions at which the first magnetoelectric transducers oppose the magnetic-pole faces of the magnets in the action unit; and a second magnetoelectric transducer provided between the first magnetoelectric transducers. Vertical-direction components of a force are detected on the basis of outputs of the first magnetoelectric transducers, and a horizontal-direction component of the force is detected on the basis of an output of the second magnetoelectric transducer.
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