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Ultrasonic gel for NDT application. Various types of ultrasonic agents. Starsonic SS2, SS3

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Technical Discussions
Nasrul Salman
Nasrul Salman
00:34 Oct-05-2007
Test (UT) deviation

Hi, Just would like to know how do you calculate UT thickness(spot) readings deviation for accuracy. Some people are telling me to take the (Max Reading - Min. Reading) / Average reading.
While some are practising the standard deviation formula in mathamatics.
Just would like to know the actual practice so that I can get an analysis of % deviation in thickness spot readings.

thanks guys


    
 
 

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