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can anyone please explain how the xlt can so accurately display the depth of a coin iv been tinkering with electronics for a while and I understand how most things work but this just isn't sinking in other than maybe they sampled the response time and told a microcontroller display this depth for this response time? anyone?
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there is simple formula on a depth. something like a logarifmic.... it was released in analog form yet in 5900 di pro and I think still earlier. anyway, you have to search all patents at this site (Geotech) and find out one you need of. I have them all, but do not find needful right away. may be Carl will give you a number of the patent. -
Better yet, maybe Carl can start an XLT project! It IS out of production.....Comment
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Most TID detectors work the same way. If a certain target produces a VDI of, say, 78 (White's scale) then the detector assumes it's a US dime and calculates depth based on strength of signal. If it really was a dime then the depth readout is usually pretty good. If it wasn't a dime then all bets are off.Comment
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OK definitely makes sense to me I appreciate the I'm assuming whites does this all digitally because when I tore down the xlt this morning I only seen one tuning pot on the board. the reason I'm wondering about all this is so I could make my own type of I guess vdi readout with the arduino that would do the same thing. I haven't found any schematic of anything like this but I'm sure I'll figure it out, it would be a nice addition to the minelab xs 2a pro that I have. if anyone has any suggestions please let me know and thanks againComment
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