Patent ID: 6483302
Filing Date: 2002-11-19
Classification: G01N

Abstract:
An apparatus for the magnetic inspection of ferrous conduit for signs of wear, comprising:a housing having a first end, a second end and a conduit travel passage extending through the housing from the first end to the second end; at least two coils positioned within the housing and encircling the conduit travel passage, each of the at least two coils being disposed at a different angle to the conduit travel passage so as to create at least two transverse flux components; sensor supports positioned along the conduit travel passage and encircled by the at least two coils; at least one sensor array mounted on each of the sensor supports, the at least one sensor array being oriented to detect flux patterns which extend transversely relative to the conduit travel passage; and a computer in communication with the at least one sensor array, the computer being adapted to receive and interpret signals from the at least one sensor array.