Method and apparatus to detect flaws in metallic pipe

Abstract

The present application discloses an apparatus and a method for detecting flaws in a wall of a metallic pipe containing a fluid. The apparatus includes a collapsible supporting structure for supporting the apparatus, wherein an axis of the apparatus is at or near an axis of the metallic pipe; a plurality of sensors for sensing magnetic field signal from the metallic pipe, the plurality of sensors configured to be distributed around an inner circumference of the pipe without contacting a surface of an inner wall of the metallic pipe; a processing module for receiving sensed data from the plurality of the sensors; and one or more battery module for electrically powering the plurality of sensors and the processing module.

Dependencies are inferred from the claim text.