| 摘要 |
PURPOSE:To decrease the null zone in the measuring device, and to stabilize a zero point in a calibration by eliminating the friction between a sliding contact which is a rotating load when a rotary shaft is rotated and a fixed contact. CONSTITUTION:A moving table 15 is set at a movement base point 13a of a base table 13 by an operating part 14a, and the measurement is started. The torque of a body to be measured 4 is transferred to an engaging part 5. The rotary shaft 12 which forms a unitary body with the engaging part 5 is rotated to the position where the shaft is balanced with the force of a balancing coil spring 6. At this time the sliding contact 7 which is fixed to the rotary shaft 12 is slidden over a passive element 9 of a detecting plate 8 which is relatively located and rotated by the same angle without contact. Since the moving table 15 is located on the movement base point 13a when the rotary shaft 12 is rotated, the sliding contact 7 is not contacted with the resistance element 9 of the detecting plate 8. Therefore, the load is not given to the rotary shaft 12. Then the moving table 15 is moved to the movement end point 13b, the resistance value of the passive element is outputted, and the torque value is measured. |
