Method for non-destructively assessing the condition of a turbin

Details Method for non-destructively assessing the condition of a turbin Method for non-destructively assessing the condition of a turbin

1991-06-24

1992-08-18

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetic sensor within material

324209, 324227, 324232, G01R 3312, G01N 2790

Patent

active

051402645

ABSTRACT:
The present invention provides a method and apparatus for performing nondestructive material assessment of service exposed combustion turbine blades. According to the invention, the testing is accomplished by inserting eddy current (EC) probes into the blade's cooling holes, and evaluating the eddy current response of the blade. The eddy current probes are preferably coupled together in a differential mode. The measured response is then compared with a previously determined response corresponding with a known material condition. An assessment of the blade is made on the basis of this comparison.

REFERENCES:
patent: 3407352 (1968-10-01), Smith
patent: 4086527 (1978-04-01), Cadot
patent: 4095181 (1978-06-01), Harris et al.
patent: 4194149 (1980-03-01), Holt et al.
patent: 4418315 (1983-11-01), Edwards et al.
patent: 4460869 (1984-07-01), Buser et al.
patent: 4528856 (1985-07-01), Junker et al.
patent: 4578643 (1986-03-01), Junker et al.
patent: 4746858 (1988-05-01), Metala et al.
patent: 5028100 (1991-07-01), Valleau et al.

Affiliated with

Also associated with

Rating

Method for non-destructively assessing the condition of a turbin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for non-destructively assessing the condition of a turbin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for non-destructively assessing the condition of a turbin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1251352