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Metal Detectors
Minelab
GPX Series Operating Frequency
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<blockquote data-quote="grubstake" data-source="post: 489962" data-attributes="member: 4012"><p>You're thinking in terms of analog AC circuits, whereas PI is closer to DC digital: current is either on or off. Have a look at this article by Reg Sniff - he explicitly deals with your query close to the beginning.</p><p></p><p>UNDERSTANDING THE PI METAL DETECTOR (Reg Sniff):</p><p><a href="http://chemelec.com/Projects/Metal-1a/Understanding-the-PI-Detector.htm" target="_blank">http://chemelec.com/Projects/Metal-1a/Understanding-the-PI-Detector.htm</a></p><p></p><p></p><p></p><p>This PDF includes a diagram showing some PI coil waveforms:</p><p><a href="https://www.prospectingaustralia.com/forum/doc/member-docs/4012/1558010451_data-sheet-pulse-induction-covermeters.pdf" target="_blank">Pulse Induction Metal Detectors - The Principle</a></p></blockquote><p></p>
[QUOTE="grubstake, post: 489962, member: 4012"] You're thinking in terms of analog AC circuits, whereas PI is closer to DC digital: current is either on or off. Have a look at this article by Reg Sniff - he explicitly deals with your query close to the beginning. UNDERSTANDING THE PI METAL DETECTOR (Reg Sniff): [url]http://chemelec.com/Projects/Metal-1a/Understanding-the-PI-Detector.htm[/url] This PDF includes a diagram showing some PI coil waveforms: [url=https://www.prospectingaustralia.com/forum/doc/member-docs/4012/1558010451_data-sheet-pulse-induction-covermeters.pdf]Pulse Induction Metal Detectors - The Principle[/url] [/QUOTE]
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Metal Detectors
Minelab
GPX Series Operating Frequency
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