| 摘要 |
PURPOSE:To enable the accurate measurement of torque, by automatically correcting a torque measuring error due to the change in the mount angle of a composite sensor by combining inclination angle measuring sensors. CONSTITUTION:In two circular rings 7, 8 with slits, the length of the slit part of the circular ring 8 in the radius direction is made longer than that of the other circular ring 7 and a pair of light emitting and receiving optical fibers 21, 22 are arranged to said part is inclination angle measuring sensors in the same way as existing light emitting and receiving optical fibers 11, 12. From the relation between a time permitting the transmission of light through the slits of the circular rings 7, 8 and a light blocking time, angle of inclination is operated by a torque operation apparatus 17. The operation result is displayed by one of display apparatus 18-20 to make it possible to know the angle of inclination of an optical axis at the measuring time of torque and the resetting to a normal state is also enabled. By this method, the effect of the angle of inclination contained in a light receiving time within one cycle of a cyclic pulse signal detected by the measuring sensor can be excluded and highly accurate measurement of torque is enabled. |
