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Technical Discussions
aldo
Engineering
Italy, Joined Jan 2009, 39

aldo

Engineering
Italy,
Joined Jan 2009
39
11:35 Jul-08-2009
hall effect meter tangential field

Hi everybody..
I have a question on intensity magnetic field for MPT...
Most specific call for a field strenght of 30Gauss to 60Gauss to have a perfect magnetization of part. The question is:
Is correct to say: 30 Gauss Tanks and best regard
Aldo

    
 
 
kamran
Engineering,
United Arab Emirates (UAE), Joined Jun 2009, 21

kamran

Engineering,
United Arab Emirates (UAE),
Joined Jun 2009
21
19:25 Jul-08-2009
Re: hall effect meter tangential field
In Reply to aldo at 11:35 Jul-08-2009 (Opening).

hi aldo
better way to measure the intensity of magnetic field is placing a QQI on the surface of part, at a point where u got a clear indication that will be ur exact value in gauss can be measured with help of gauss meter can be in between 30 ~60 OR 30 gauss

    
 
 
Amy
NDT Inspector, - -
USA, Joined Jan 2009, 87

Amy

NDT Inspector, - -
USA,
Joined Jan 2009
87
20:05 Jul-08-2009
Re: hall effect meter tangential field
In Reply to kamran at 19:25 Jul-08-2009 .

Aldo,
FYI, most procedures specify the 30-60 gauss out of old versions of ASTM E 1444. The 2005 version has the 60 gauss maximum requirement removed. I've found that with using the QQI's, the current needed to properly see the QQI indication is usually greater than 60 (or sometimes much less than 30 G). It all depends on the material in question. QQI's is definitely the way to go, especially with irregular geometries.

    
 
 

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