| 摘要 |
<p>PURPOSE:To eliminate the influence of deformation, waviness, vibration, etc., on a guide surface and to execute the measurement with high accuracy by deriving the increase ratio of a pitching motion at the time of moving a displacement detector fitting base by an arithmetic processing from a measured value by a roll profile measuring displacement detector at the time of measuring a roll whose roll profile shape is known. CONSTITUTION:A displacement detector fitting base 4 is moved in the axial direction of a work roll 2, and by displacement detectors 103a, 103b, 103d, 103f and 103g, a partial roll profile of the roll 2 is measured. In such a case, the measurement obtained from each detector comes to that which is obtained by superposing the relative displacement between the roll 2 and the fitting base 4 caused by a motion error at the time of moving a true roll profile and the fitting base 4 and vibration generated in the course of measurement. Accord ingly, a moving amount of the fitting base 4 is made larger than installation intervals l1 - l4 of the displacement detectors so that partial roll profiles mea sured by each displacement detector overlap. Also, by evaluating correctly the motion error and the relative displacement at the time of moving the fitting base 4, each measured value of the displacement detectors is corrected.</p> |
