Originally posted by matabele
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http://www.geotech1.com/forums/forumdisplay.php?f=53
This is working well and gives good discrimination.
I would like to improve on that method and extract 10 or even 20 samples in quick succession to capture a whole time section.
The reason for this can be better explained when you look at the pictures at:
http://www.geotech1.com/forums/showthread.php?t=15441
Where I try to show that there is a lot of information available, if one knows where to look for it.
When locking at the oscilloscope screen, I can see movement at certain spots in time that indicate the TC of the target and if it is iron or non magnetic metal. Sampling at these spots let's me extract this information.
This information has thought me how to produce a TX pulse of a different shape, that gives more information about the target, because it excites core eddy currents not only skin effect eddy currents.
I believe that if this is taken a step further, like you indicate, recording a significant section of the decay curve, much more information can be extracted and much better compensation for mineralized ground and other PI problems could be designed.
Unfortunately, I am not capable of doing the programming. Are you?
Tinkerer
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