Recently we have carry out an inspection of boiler tubing with Eddy Current and Ultrasonic method...
However some of the tubing do not have any reading....
What can cause this no reading of the tubing?? is it due to wrong eddy current/ultrasonic frequency or there is to much deposit/foulings on the surface of the tube wall that resulted in no reading?? Received on Fri Nov 29 17:17:00 2002
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