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What is Understanding Metal Detectors about?
A metal detector uses electromagnetic induction to detect metal objects buried underground. When an alternating current is passed through the search coil, it creates a changing magnetic field. This induces currents in any nearby metal objects, which in turn create their own magnetic fields detectable by the search coil. Simple pulse induction detectors pass a current through the search coil then quickly switch it off, creating a pulse of magnetism that causes currents to flow in buried metal targets. The ef
- Author
- Lan Hoang
- Language
- EN