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Gold Prospecting
Metal Detecting for Gold
magnetic shield for GPX's
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<blockquote data-quote="Metamorphic" data-source="post: 122150" data-attributes="member: 3682"><p>We all know metal detectors work on the principle of transmitting a magnetic field and analyzing a return signal from the target and environment. </p><p></p><p>The magnetic transmitter is in the form of a transmit coil, the receiver is in the form of a receive coil (Both are contained within the one coil in your typical Mono). The coils have a varying electric current flowing through them produced by transmit electronics (The control box). </p><p></p><p>Basically, this electrical current in the transmit coil causes a transmitted magnetic field which in turn, causes electrical currents to flow in metal targets (called eddy currents).</p><p>The receiver in your mono coil detects these magnetic fields generated by eddy currents as a very small voltage, this voltage is then processed by the control box which translates it as an audio beep.</p><p></p><p>Im not convinced that simply covering the control box (which is simply a processor), will alter any amount EMI being picked up by the coil?</p><p>It may help slightly, but i doubt it seeing the coil is being left out of this equation.</p><p></p><p>Just MHO!</p><p></p><p>Cheers</p></blockquote><p></p>
[QUOTE="Metamorphic, post: 122150, member: 3682"] We all know metal detectors work on the principle of transmitting a magnetic field and analyzing a return signal from the target and environment. The magnetic transmitter is in the form of a transmit coil, the receiver is in the form of a receive coil (Both are contained within the one coil in your typical Mono). The coils have a varying electric current flowing through them produced by transmit electronics (The control box). Basically, this electrical current in the transmit coil causes a transmitted magnetic field which in turn, causes electrical currents to flow in metal targets (called eddy currents). The receiver in your mono coil detects these magnetic fields generated by eddy currents as a very small voltage, this voltage is then processed by the control box which translates it as an audio beep. Im not convinced that simply covering the control box (which is simply a processor), will alter any amount EMI being picked up by the coil? It may help slightly, but i doubt it seeing the coil is being left out of this equation. Just MHO! Cheers [/QUOTE]
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Gold Prospecting
Metal Detecting for Gold
magnetic shield for GPX's
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