Silver AND Gold?

[Anonymous]

When setting are made to a pulse induction metal detector to make it "hot on gold", especially lowering the pulse delay, does this make it less sensitive to other metals in return (esp. silver)? What coins or metals become harder to detect with a low pulse delay? I like to dive the old Spanish shipwrecks looking for gold and silver coins and gold jewelry, however, I would hate to think I am missing silver coins (esp. the small 1 reales and 1/2 reales) because I am using a detector with a pulse delay designed to find thin gold chains or rings. Can anybody give me a short answer to what I imagine is a fairly complex question?

 

[Anonymous]

Hi Pete,
The question is simple but the answer is complex <IMG SRC="/forums/images/smile.gif" BORDER=0 ALT=""> The sensitivity to an object not only results from the pulse delay but also from the width of the sample pulse, the delay to the second sample pulse (most PI

 

[Anonymous]

Eric,
What if you took a detector design such as the CS7 and fitted it with a swept or stepped tuning arrangement? Would the automatic tuning do the job? Also, what if the detector while tuning itself had automatic means to optimize it's tuning for each target? Trust me to think up such an off the wall question! Dave. * * *

 

[Anonymous]

Hi Dave,
Maybe a detector that you held stationary over the type of object you wished to find and the pulse generator scanned the TX width, delays etc etc until it found the optimum setting and then locked. This would need to be done in a non-motion mode, but then you could switch to motion after the optimisation cycle.
Eric.