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949 views
04:53 Jan-26-2006

inspjob

Engineering, INSPECTION ENGINEER
supreme excel ndt services TRICHY,
India,
Joined Jul 2005
6
skin effect in MPI

Dears ,
can u explain what is skin effect


 
09:45 Jan-26-2006

graham

NDT Inspector, aerospace
defence,
South Africa,
Joined Jan 2002
1
Re: skin effect in MPI ----------- Start Original Message -----------
: Dears ,
: can u explain what is skin effect
------------ End Original Message ------------
Skin effect is the result of testing with A.C. and refers to the fact that A.C. does not penetrate- at least very little -into the item under test. Particles tend to remain on the item under test for a vey short time and need to be evaluated almost instanaeously.


 


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