| 摘要 |
TITLE OF THE INVENTION: DEVICE FOR MEASURING AXIAL DISPLACEMENT OF ROTATING MACHINE PARTS, ESPECIALLY FOR MEASUREMENT DURING OPERATION OF THE PLATE CLEARANCE IN A DISC REFINER A device for the measurement of the axial position of a rotating body comprises a sensor fixed near a preferably cylindrical surface of the body, coaxial with its rotational axis. The cylindrical surface comprises markings which may be two lines together forming an angle. The two lines are successively detected by the sensor when the body rotates. The time difference between two successive detections will vary with axial displacement of the body a making such displacement measurable. |
