| 摘要 |
PURPOSE:To detect torque stably with good responsibility without contacting by using a torque sensor which the reverse effect of magnetostriction and a position sensor, and averaging momentary torque. CONSTITUTION:The position sensor 1 arranged corresponding to the projection 29 of a torque transmission shaft 27 outputs one pulse on every turn. Momentary torque TQ outputted by a cross type torque sensor 2 constituted by putting a U- shaped exciting core 20 and a using core 21 in corss relation is read in a microcomputer 7 synchronously with the output of a pulse generator 12. Every time a pulse is outputted by the position sensor 1, data on the momentary torque TQ stored in one cycle are averaged and applied torque TQR is calculated from the difference TQZ in mean torque TQZ in an unloaded state. |
