Apparatus and method for combined inspection of a tube by ultrasonic and eddy currents.

摘要

APPARATUS AND METHOD TO INSPECT simultaneously TUBE WALLS WITH PROBES ULTRASOUND (11,13,15) and eddy current. The apparatus (1) includes a housing, an assembly (6) containing a carrier PROBE (7) Mobile helically relative to the housing (6) and having three ultrasonic probes (11,13,15) and a probe eddy current (17). The method includes correlating DATA GENERATED BY ULTRASOUND PROBE (11,13,15) WITH DATA GENERATED BY PROBE eddy current (17) to determine the size, shape and nature of any crack in the tube walls.