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Magnetoelastic torque transducer for improved torque measurement

  • US 6,532,832 B2
  • Filed: 09/19/2001
  • Issued: 03/18/2003
  • Est. Priority Date: 09/27/2000
  • Status: Expired due to Fees
First Claim
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1. A torque transducer comprising a transducer shaft arranged with a cylinder-shaped magnetoelastic region at the cylindrical periphery of the transducer shaft, which cylinder-shaped magnetoelastic region is permanently magnetized in the azimuthal direction and surrounded by at least one winding which is fed by an alternating current, which winding in turn surrounds a cylinder-shaped layer in the form of a shell consisting of a highly permeable and non-linear ferromagnetic material for generating even harmonics, characterized in that a layer of said highly permeable and non-linear ferromagnetic material arranged in physical contact with the cylinder-shaped magnetoelastic region.

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