Back to results
US 7,401,531 B2Granted
Fabrication of a magnetoelastic torque sensor
AssigneeContinental Automotive Systems US, Inc.
InventorDavid W. Cripe
Life of this patent
Estimating the term…
Abstract
A method of fabricating a magnetoelastic torque sensor includes plating a magnetoelastic material to a magnetically inert substrate, and its endowment with uniaxial magnetic anisotropy through the creation within the transducer element of stress anisotropy. The plating of magnetostrictive material to the magnetically inert substrate provides a less expensive torque element that exhibits desired levels of accuracy and reliability.
Claims10
A torque sensor assembly comprising:
- a substrate for encountering a torque load;
- a ring fabricated from a magnetoelastic material plated directly to said substrate, wherein said magnetoelastic material includes low magnetic resistance in a circumferential orientation about said substrate;
- and
- a magnetic sensing device for detecting distortion of a magnetic field induced by the application of torque to said substrate.
1 more element
A torque sensor assembly comprising:
- a substrate comprising a non-magnetic material;
- a magnetoelastic material plated directly to said substrate, said magnetoelastic material forming a ring formed on said substrate;
- and
- a magnetic sensing device for detecting a change in an orientation of a magnetic field induced by application of torque to said substrate.
1 more element
Dependencies are inferred from the claim text.