Intro to Eddy Current Machine

[@deltaforceee]

we never got the chance to do eddy current during my education on NDT which we all complained about. Thank you for giving me a good idea how it works :)

[@FJB_GFY2024]

I came here by accident and I feel like I learned more than I needed to know lol

[@aimranomar8724]

very useful bro since now i have to work with this thing...

[@JClasenCowleyNDT]

You should look at changing filters such as high and low pass, just be aware that when you apply the the high pass filter, you are going to lock the signal on the screen wherever you have set the dot at. Let me know if that helps Joe

[@fatanaljafar868]

Can the Nortec 500D detect other precious metals for example gold or copper?

[@yessicabesares9237]

Nice video! Congratulations

[@darshandipalidilipdudhane1077]

Dear Sir, why we are set hole on 40 degree and 1volt for differential channel and why we are set absolute channel 0.1 volt at 40 degree for internal tube inspection by bobbin probe. Can you please explain it

[@Xododeadnight]

Hello i tried to do this practice with my nortec 500d and a MP905-60 1-3MHZ probe and a CBM-6 cable and a calibration standard (0.008"-0.02"-0.04") but i dont have good results, i see the dot and the lift-off, edge effect but very small i, vary the frequency, gain, filter but the signals representations in the screen cotinue very small i cant see clearly the signal of the discontinuities

[@1proudinfidel]

What is the manufacturer and part number of your test sample kit you are using for this video?

[@cjf2848]

Hello, great video... I am using same machine, and am trying to sort different classes of steel for UT calibration purposes. How can i get the signals to seperate more, so they stick out better when i go from one class of steel to another.Thanks...

[@spankyspangenberg5512]

good afternoon Joe, i am self learning how to use Nortec 500 and i am curious to know if i am capable with this equipment of measuring the depth of a crack in plate steel

[@davetorres7029]

im not joe but yes you can. anything thats ferrous metal

[@anilkumarah1051]

Hi sir , your video s about ET is very very very useful. I m following all steps which u explained in nortec500D m/c . I need more information about frequency settings and selection of frequency in finding surface cracks

[@lancercool1992]

can i get a voltage vs penentration depth graph using this machine? is the vertical gain some sort of an equivalent to penetration depth?

[@JClasenCowleyNDT]

Wei, I don't have a voltage / penetration graph for this machine and really I don't think you need one because there are calculations out there that will allow you to calculate standard depth of penetration. The gain could be thought of as a depth, but not the best way to look at things. Joe

[@lancercool1992]

Joe Clasen Thank you for the reply. I'm trying to do residual stress measurement with eddy current, but I don't know what equipment to purchase. All the articles I found are very vague about the use of equipments and the calculation of residual stress from conductivity. The reason I asked you if it gives voltage/pen. depth graph is that I read in a paper that there is a linear relation between the residual stress and eddu current voltage, so was wondering if I can get the voltage first and then worry about the residual stress. So it doesn't give the graph I want ...Can you extract the data though? like a txt file of the readings of the probes? and is it able to plot anything else or convert the readings? Thank you Wei

[@joeclasen1977]

Wei Wang I would get in contact with Olympus, they would be more than willing to help! We don't do anything like that! Sorry!

[@ingenierodevuelo]

the settings are similar to the nortec 2000d+?

[@tarcisiofneto]

Great video.

[@joeclasen1977]

Thanks

[@jockellis]

Joe, on the pencil probes, do you place any protective coating like Teflon tape?

[@Cowleyelearning]

I typically do, but on some of these probes I haven't and have ruined the end of the probe so I surely do now!

[@louisorcino642]

Joe, it's been plenty of moons since I performed surface eddy current and a little rusty on what frequencies to set my machine at. Could you tell me what is the optimum frequency to test for carbon steel?

[@JClasenCowleyNDT]

+Louis Orcino Louis, Steel is going to be a little weird because of the permeability, but you can get by with 100 - 200 khz and start there. Thanks! Joe

[@TheYitxiang90]

thanks man, great job

[@qamarkhan2546]

hello guys i have question .some body help me please can we use eddy current machine on pd eyes to detect crack ? because i heared that we can detect only on soft and perfectly smooth surface .

[@joeclasen1977]

Qamar, You can really use eddy current on any surface you want to as long as it is conductive. Now with that being said you are going to possibly deal with alot of noise in your signal, but I am sure willing to give anything a try. Toss me an email [e-mail]

[@ramonaguilan3020]

You may need some teflon tape on the probe tip to protect the tip from wearing.

[@dhanasekaranarunachalam4610]

Thank you sir

[@arjunpatil6646]

Material shorting setting

[@marksierra3522]

its a really expensive etch a sketch

[@Airman..]

turn Auto erase please