| 摘要 |
<p>[PROBLEMS] A torque measurement device capable of more accurately specifying the position of reflective bodies attached to a rotating body and more accurately obtaining torque of the rotating body. [MEANS FOR SOLVING PROBLEMS] A pair of reflective bodies (14a, 14b) is arranged with an axial spacing on the surface of the rotating body (13), and data on reflected light with a reflection pattern of the pair of reflective bodies (14a, 14b) is inputted and stored in a computer. A point at which AIC relative to a model of data on reflected light from the rotating body (13) is minimum is determined to detect the region where the pair of reflective bodies (14a, 14b) is present. Then, the amount of torsion of the rotating body (13) is calculated based on the position of the reflective bodies that can be specified by the detected region of presence of the pair of reflective bodies (14a, 14b), and torque is calculated based on the calculated amount of torsion of the rotating body.</p> |
