Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Reexamination Certificate
2011-01-18
2011-01-18
Whittington, Kenneth J (Department: 2858)
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
C324S262000
Reexamination Certificate
active
07872472
ABSTRACT:
An eddy current testing method for a turbine rotor including a disc, a plurality of turbine blades disposed along the periphery of the disc, and a plurality of pins for joining a blade fork portion formed on each of the plurality of turbine blades to a disc fork portion formed on the disc, the method including inserting a probe having an eddy current testing sensor into a hole formed through the disc fork portion and the blade fork portion by pulling out one of the plurality of pins in a state that the blade fork portion is still inserted into the disc fork portion; and performing eddy current testing for at least part of an internal surface of the hole by using the probe.
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Adachi Yuuji
Isaka Katsumi
Kodaira Kojirou
Koike Masahiro
Kumasaka Kenji
Hitachi , Ltd.
Hitachi Engineering & Services Co. Ltd.
Mattingly & Malur, P.C.
Whittington Kenneth J
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