Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate
2009-05-12
2011-11-01
Allen, Andre (Department: 2855)
Measuring and testing
Vibration
By mechanical waves
C073S627000
Reexamination Certificate
active
08047078
ABSTRACT:
There is provided a flaw detection testing method applied to a slot dovetail portion of a turbine generator rotor shaft. The flaw detection testing method includes an angle determining step of determining a slot angle of the slot dovetail portion using a variable-angle ultrasonic probe, a flaw detection performing step of, on the basis of a determination result in the angle determining step, using an angle ultrasonic probe or a phased array probe to perform flaw detection to detect a flaw in the slot dovetail portion, and a flaw depth measuring step of, when the flaw is detected in the flaw detection performing step, using an angle ultrasonic probe to measure a depth of the flaw from a surface of the slot dovetail portion.
REFERENCES:
patent: 5442286 (1995-08-01), Sutton et al.
patent: 5558500 (1996-09-01), Elliott et al.
patent: 6745622 (2004-06-01), Smith et al.
patent: 7026811 (2006-04-01), Roney et al.
patent: 7579830 (2009-08-01), Roney et al.
patent: 2003/0221497 (2003-12-01), Murphy et al.
patent: 2004/0083801 (2004-05-01), Smith et al.
patent: 2006/0280604 (2006-12-01), Roney et al.
patent: 2007/0089545 (2007-04-01), Roney et al.
patent: 2001-116728 (2001-04-01), None
Koinuma Hiroaki
Matsuyama Koji
Allen Andre
Kabushiki Kaisha Toshiba
Ohlandt Greeley Ruggiero & Perle L.L.P.
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