| 摘要 |
A flux-gate magnetometer torque sensor is provided having a rotatble shaft (26) to which a torque force is to be applied, a sleeve of conductive foil (84) afixed to the surface of the shaft over the magnetically active regions, a plurality of saturable magnetic wires (28) or strips mounted to the rotatable shaft (26) and parallel to an axis of rotation (30), sensor circuitry containing an oscillator (12) for generating a signal, a divider (16) coupled to the oscillator for dividing the frequency o fthe signal by two, a first and second coil (22, 24) each surrounding a different section of the rotatable shaft (26) and having an imput coupled to the divider output, a multiplier (18) having inputs coupled to outputs of the first coil (22), the second coil (24), and the oscillator (12), and a integrator (34) having an input coupled to the multiple output coupled to both outputs of the first and second coils, wherein the output voltage of the integrator corresponds to the torque being applied to the rotatable shaft.
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