G - Physics – 01 – N
Patent
G - Physics
01
N
354/1, 324/50
G01N 27/90 (2006.01)
Patent
CA 1221738
33 ABSTRACT OF THE DISCLOSURE An apparatus for simulating and analyzing dis- continuities in a tube using eddy current inspection tech- niques is disclosed. The simulation apparatus includes inner and outer tubular members arranged to define an annu- lar chamber having a predetermined tubular configuration corresponding to the tubular configuration of a tube under investigation. The outer tubular member has an opening through the wall thereof and the inner tubular member defines an axially extending hollow interior. A supply of electri- cally conductive liquid material is provided in the annular chamber, the quantity of liquid material being such as to substantially and completely fill the annular chamber in the vicinity of the opening through the wall of the outer tubular member. A defect simulation member is supported in the open- ing in the outer tubular member for movement along a predeter- mined direction extending transverse to the axis of the inner tubular member. Further, an eddy current test probe is positioned in the hollow interior of the inner tubular member adjacent the position of the defect simulation member for generating eddy current responses which are representative of the eddy current responses which would be obtained for a tube having a configuration corresponding to the predetermined tubular configuration and having a discontinuity in the wall thereof corresponding to the predetermined type of discon- tinuity.
467832
Chizmar David A.
Junker Warren R.
Taszarek Bruce J.
Oldham And Company
Westinghouse Electric Corporation
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