The invention relates to a component transducer (20) for sensing a torque component (Mx, My, Mz); wherein an element (21) made of piezoelectric crystal material comprises element surfaces; wherein a force component (Fx, Fy, Fz) produces electric polarization charges on the element surfaces; and wherein the torque component (Mx, My, Mz) to be sensed consists of at least one pair having force components (+Fx, −Fx; +Fy, −Fy; +Fz, −Fz) wherein said force components (+Fx, −Fx; +Fy, −Fy; +Fz, −Fz) of a pair have the same axis of action and opposite directions of action. The component transducer (20) receives the force components (+Fx, −Fx; +Fy, −Fy; +Fz, −Fz) of a pair separately.