Magnetostrictive torque transducer

Magnetostrictive torque transducer

  • CN 1,083,574 C
  • Filed: 06/21/1989
  • Issued: 04/24/2002
  • Est. Priority Date: 02/22/1989
  • Status: Active Grant
First Claim
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1. magnetostrictive torque sensor, wherein, one excitatory magnetic field is added in the incorgruous district of lip-deep magnetic, a turning axle fate, thereby with the contactless variation that detects by magnetic permeability in the incorgruous district of the magnetic that torque was produced that is added on the turning axle of the value of electricity.It is characterized by:

  • The incorgruous district of magnetic is made of a plurality of helicla flutes that form with relation spaced apart in the circumferential direction and that be parallel to each other, andOn the turning axle surface, comprise the maintenance district that is provided with the maintenance residue compressive stress that tiny indenture and tiny indenture produce in the presumptive area in the incorgruous district of magnetic, described tiny indenture is evenly distributed in this zone basically andIn the presumptive area on turning axle surface, be not less than 70% of this region area by the shared area of tiny indenture.

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