Dear friends I'm working on eddy current testing of tube. How I should determine the frequency of probe? Assume tube thickness is= 1 mm, outside diameter= 20 mm and material of tube is copper alloy. Regards Kaveh
Re: Frequency of probe for ET of tubes Dear Mr.Kavesh You can use the formula, F90= 3 x Conductivity / txt Which will give you center optimum frequency. Frequency is related to thickness and material only. Its nothing to do with diameter. Thanks. Ikesh Patel.
Re: Frequency of probe for ET of tubesIn Reply to Michel Couture at 12:21 Nov-03-2017 .
Sir, please can u reply to some of my queries regarding Ect
1.while doing calibration,most of the time absolute channels will not get calibrated. What is the reason for that?
2.What is probe saturation?
3.In many cases, D90 channel will show a defect but the mixed channel will not show it as a defect although it is not a support.Should we consider the signal as a defect?