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Metal Detectors
General Metal Detector Discussion
What VLF to compliment PI?
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<blockquote data-quote="SteelPat" data-source="post: 287307" data-attributes="member: 4467"><p>Hey Simmo</p><p></p><p>Sorry but current PI technology can not offer discrimination with any coil. Unlike a VLF which is basically looking for a change in the transmitted signal, PI machines look at the decay signal from the target. </p><p></p><p>I can see it the future that there will be discrimination but as it stands its not possible with current designs.</p><p></p><p>The reason most PIs use mono coils is that they offer deeper penetration of the ground. DD coils are naturally quieter, less sensitive to ground noise but does not punch as deep.</p></blockquote><p></p>
[QUOTE="SteelPat, post: 287307, member: 4467"] Hey Simmo Sorry but current PI technology can not offer discrimination with any coil. Unlike a VLF which is basically looking for a change in the transmitted signal, PI machines look at the decay signal from the target. I can see it the future that there will be discrimination but as it stands its not possible with current designs. The reason most PIs use mono coils is that they offer deeper penetration of the ground. DD coils are naturally quieter, less sensitive to ground noise but does not punch as deep. [/QUOTE]
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Metal Detectors
General Metal Detector Discussion
What VLF to compliment PI?
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