Patent ID: 9644954
Date: 2017-05-09
CPC Classifications: G01B,G21C

Claim:
1. A method for measuring the surface state of a surface of a tube, the surface comprising at least one portion having a surface curvature, the method comprising the following successive steps in the following order: measuring the surface curvature of the portion, providing a support for the tube, providing a measurement head comprising a probe for being in contact with the surface portion, the head being configured to stress the probe on the surface and measure the displacement of the probe along a displacement axis, mounting the measurement head displaceable relatively to the support, at least a part of the head being mounting only displaceable relatively to the support along a trajectory corresponding to the measured surface curvature, the displacement axis being substantially perpendicular to the trajectory, thereby obtaining a device comprises the measurement head for measuring the surface state of the surface of the tube, mounting the tube on the support of the device for measuring the surface state of the surface of the tube, and measuring the surface state of a surface of the tube by displacing the head relatively to the support and the tube along the trajectory corresponding to the measured surface curvature and thereby obtaining the surface state of the surface of the tube.