| 摘要 |
A steering torque detector includes input and output shafts, a torsion bar connected between the input and the output shafts, a printed circuit board attached to the input shaft or output shaft and resistor layers and electrode as a potentiometer, having a mounting ring made of electric insulator and fitted around both the input and output shafts, and a slider attached to the mounting ring and elastically kept in contact with the resistor layers at the slider. The potentiometer includes main and auxiliary circuits each having the resistor layer and the electrode, the resistor layers of both circuits being located at a distance from each other in the radial direction of the detector and extending along mutually concentric circles through the same range of central angle of the detector. The slider includes a main slider kept in contact with the resistor layer of the main circuit at one end thereof, and an auxiliary slider kept in contact with the resistor layer of the auxiliary circuit at one end thereof. Both the main and auxiliary sliders are located at a distance from each other in the radial direction and extending along mutually concentric circles so that the one ends of both the main and auxiliary sliders are positioned on the radial direction.
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