Method and apparatus for examining obstructed welds

Details Method and apparatus for examining obstructed welds Method and apparatus for examining obstructed welds

2006-11-14

2006-11-14

Larkin, Daniel S. (Department: 2856)

Measuring and testing

Inspecting

C073S618000, C073S620000, C073S634000, C073S640000, C376S249000

Reexamination Certificate

active

07134352

ABSTRACT:
A method and apparatus is provided for inspecting material arranged within an annular recess such as weld beads, particularly weld beads between the shroud, core plate and support structures within a boiling water nuclear reactor (BWR). The apparatus comprises a track support, a generally arcuate track, a carriage, a sensor support and a sensor. The track is configured to correspond and align generally with an inner surface of a shroud or other encompassing structure with the sensor support and sensor configured to be extended into and then moved horizontally along the annular recess. The sensor may be configured with a plurality of sensor elements, such as ultrasonic transducers or eddy current sensors that may be configured to analyze different properties or different regions relative to the sensor location.

REFERENCES:
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patent: 2003/0047585 (2003-03-01), McCombe et al.
patent: 2005/0056105 (2005-03-01), Delacroix et al.

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