| 摘要 |
PROBLEM TO BE SOLVED: To cancel the delay of torque transmitting time from the torque input side the torque output side in a torque detecting device, and to make surely detectable the direction and magnitude of an applied torque using a simple structure. SOLUTION: The torque detecting device is provided with pair of fixed sections 21, 22 which are disposed on a rotational shaft 20 and spaced at a constant distance along the length of shaft, a permanently strained section 23 which is disposed between the pair of fixed sections 21, 22 and changes its magnetic properties in accordance with the applied torque, and a multi-layer solenoid winding coil 23 which is disposed around the permanently strained section 23 and electrically detects the magnetostrictive effect occurring in the permanently strained section 23. The permanently strained section 23 in the rotational shaft 20 is a section in which the permanent strain is given by twisting the fixed sections 21, 22. |
