CURRENT-DRIVEN FERROUS PIPE INSPECTION SYSTEM

摘要

An apparatus and method for detecting anomalies in ferrous pipe structrues in presented. An electrical current is passed through the ferrous pipe structure so as to create a magnetic field in the pipe. A sensor having one or more sensor shoe members is placed in the interior of a ferrous pipe structure to be inspected. Each sensor shoe member has one or more magnetometer elements for detecting the magnetic fields in the region of the ferrous pipe structure adjacent to which the sensor shoe member is placed.