Tube wall thickness measurement

Details Tube wall thickness measurement Tube wall thickness measurement

G - Physics

01

B

358/5.1

G01B 15/02 (2006.01)

Patent

CA 1180131

ABSTRACT OF THE DISCLOSURE Apparatus measures the thickness of a tube wall while the tube experiences motion relative to the apparatus. A radiation beam is generated and positioned relative to a tube so that the beam sequentially passes along at least three selected beam paths. Each beam path passes through at least two distinct measuring points within the cross section of the tube wall. At least three measuring points are passed through by at least two different radiation beams. The beam intensity of the transmitted beam after it passes through the tube wall is detected to produce a detected value of the intensity that is supplied to a processor that determines the tube wall thickness based upon the detected value after it has been transmitted through the tube and the known intensity value of the beam before it was transmitted through the tube. The result is apparatus that is more compact and versatile in adapting to tubes of different diameters.

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