hi everyone
recently i was working on miniPulse plus rev-D, i build the circuit and did air test every thing was just fine except i encountered an expected problem when i did soil test. the problem was the detector have strong response to the soil. of course this problem is not issue when i move...
4 results in 0.0019 seconds.
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ground balance capability
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Ground Balance to negate effects of ground mineralisation
My question is how do metal detectors using the PI technique ground balance ? is there a foolproof method used by most, or are there many various methods ?
I am currently in the preliminary stages of building the TWINLOOP TREASURE SEEKER, this design uses two coils to negate effect of mineralisation... -
PI detectors and a possible new approach
All the PI detector information I see, involves generating a pulse (which is a ringing damped sinusoid) and damping it so it doesn't ring. Then extracting information from the decay slope.
This is leaving valuable information behind. This post should be considered prior art for anyone thinking... -
Fisher F2 Ground balance mod
hi, i just bougth the fisher f2 and open it up, and as stated in another thread its the same pcb as the F4, minus some things..and i noticed that there is a place for the ground balance pot like on the F4, but instead there is a regular resistor there giving it a fixed value...
the resistor is...