The first in-depth book on metal detectors technology since 1927, and a lot has changed since then! Ok, maybe that's a slight exaggeration, but there is no doubt that information on metal detectors design has been virtually non-existent outside of the companies that produce them. This book covers the following:
- Induction and eddy currents, the very essence of metal detection
- BFO and off-resonance
- Induction balance and VLF, currently the most popular technology
- Phase discrimination or how to ignore junk
- Ground balance, or how to ignore mineralization
- Pulse Induction, the technology for deep seekers
- Coil types and construction
- Dowsing and long-range locators, fact, fiction or fraud?
- Experiments and construction projects throughout to give practical results.
Authors: George Overton and Carl Moreland