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Consumer metal detectors have a round head known as the "search coil," which is the part that actually does the detecting. There are two parts to the coil, the transmitter coil and the receiver coil.
The best metal detectors have a range of frequencies to detect different metals in different locations for a chance for find lost rings, old coins and gold 7 Best Metal Detectors of 2023, Reviewed ...
The development of transistors, discriminators, modern search coil designs, and wireless technology significantly impacted the design of metal detectors as we know them today: lightweight, compact, easy-to-use, and deep-seeking systems. The invention of a tunable induction device was the most significant technological advancement in detectors.
Metal detectorist picks up signal in Romania — then unearths almost 5,000 ancient coins 2,000-year-old cemetery — full of Gothic treasures — unearthed in Poland. See photos
Magnetometers can be used as metal detectors: they can detect only magnetic metals, but can detect such metals at a much greater distance than conventional metal detectors, which rely on conductivity. Magnetometers are capable of detecting large objects, such as cars, at over 10 metres (33 ft), while a conventional metal detector's range is ...
A stud finder (also stud detector or stud sensor) is a handheld device used with wood buildings to locate framing studs located behind the final walling surface, usually drywall. While there are many different stud finders available, most fall into two main categories: magnetic stud detectors and electric stud finders.
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