Patent ID: 7124649

Claim:
A magnetic transducer element comprising: a member of magnetizable material having an axis about which it is rotatable or capable of flexing; wherein said member is a portion of a shaft, and wherein said member being magnetizable to having a first and a second annulus of axially-directed stored magnetization about said axis extending inwardly from an external surface of said member, the first and second annuli being axially spaced and each annulus of magnetization emanating a magnetic field the distribution of a component of which in the axial direction exhibits a magnetic field profile which shifts in the axial direction as a function of torque applied to said member about said axis and/or to a force causing said member to flex about said axis, and wherein said first annulus exhibits a magnetic field profile of said component which shifts in the opposite direction to the shift of the magnetic field profile of said component exhibited by said second annulus in response to a given torque applied about said axis or to a given force applied to flex said member about said axis.