publication . Article . 2015

Eddy current testing system for bottom mounted instrumentation welds

Noriyasu Kobayashi; Souichi Ueno; Naotaka Suganuma; Tatsuya Oodake; Takeshi Maehara; Takashi Kasuya; Hiroya Ichikawa;
Open Access English
  • Published: 01 Jan 2015 Journal: EPJ Nuclear Sciences & Technologies (issn: 2491-9292, Copyright policy)
  • Publisher: EDP Sciences
Abstract
The capability of eddy current testing (ECT) for the bottom mounted instrumentation (BMI) weld area of reactor vessel in a pressurized water reactor was demonstrated by the developed ECT system and procedure. It is difficult to position and move the probe on the BMI weld area because the area has complexly curved surfaces. The space coordinates and the normal vectors at the scanning points were calculated as the scanning trajectory of probe based on the measured results of surface shape on the BMI mock-up. The multi-axis robot was used to move the probe on the mock-up. Each motion-axis position of the robot corresponding to each scanning point was calculated by ...
Subjects
Medical Subject Headings: technology, industry, and agriculture
free text keywords: Nuclear engineering. Atomic power, TK9001-9401, Instrumentation, Eddy-current testing, Materials science, Welding, law.invention, law, Voltage, Pressurized water reactor, Econometrics, Acoustics, Kinematics, Reactor pressure vessel, Machining
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publication . Article . 2015

Eddy current testing system for bottom mounted instrumentation welds

Noriyasu Kobayashi; Souichi Ueno; Naotaka Suganuma; Tatsuya Oodake; Takeshi Maehara; Takashi Kasuya; Hiroya Ichikawa;