Method and a device for inspecting a pipe connection weld by...

Details Method and a device for inspecting a pipe connection weld by... Method and a device for inspecting a pipe connection weld by...

2006-07-04

2011-10-25

Fureman, Jared (Department: 2856)

Measuring and testing

Vibration

By mechanical waves

C073S622000

Reexamination Certificate

active

08042399

ABSTRACT:
A method of inspecting a substantially circular circumferential weld for connecting together an inner pipe and a coaxial outer pipe, either directly or via a junction forging, by using an ultrasound probe having a plurality of robotic multibeam piezoelectric emitter-receivers. The method is performed by: a) positioning at least one ultrasound probe inside said inner pipe; b) scanning the various ultrasound beams from the various emitters of said probe while the probe is positioned at a given position; and c) moving said probe in rotation about the axis of said pipe through a given angle corresponding to an arc length less than or equal to the size of the weld defects that are to be detected; and then d) repeating steps b) and c) until the entire circumference of the weld has been inspected. The present invention also provides a device for inspecting a circumferential weld that is suitable for use in a method of the invention.

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