One of the most unique features of the book is a dedicated chapter on dowsing and Long Range Locators (LRLs). In interviews, the authors described themselves as "confirmed skeptics" where these topics are concerned and were prepared for questions on this subject. The chapter is designed to provide a scientific and critical analysis of pseudoscientific claims, aiming to educate readers about the empirical results and why such methods are not considered valid.
The immense value of this book stems from the elite expertise of its authors, who are pillars of the DIY electronics community:
High-powered current pulses are sent through the coil, creating a magnetic field. The current is then abruptly switched off.
By analyzing the phase shift between the transmitted and received signals, VLF detectors can differentiate between ferrous (iron) and non-ferrous (gold, silver, copper) metals. 2. Pulse Induction (PI) One of the most unique features of the
One oscillator uses the search loop as its tuned circuit, while the second reference oscillator remains stable inside the control box.
Clear explanations of induction, eddy currents, and how magnetic target responses work in different field situations. Detector Topologies: In-depth coverage of major technologies, including: (Beat Frequency Oscillator)
“Hello, I am looking for a full PDF copy of ‘Inside the Metal Detector’ by George Overton and Carl Moreland. This document is often referenced in metal detecting electronics circles, possibly from Geotech or similar hobbyist sites. Does anyone have a clean, complete version they could share or point me to? Thank you.” The immense value of this book stems from
Uses a single coil (or two co-axial coils) acting as both transmitter and receiver.
A deep dive into continuous wave induction balance, phase shifts, and ground mineralization rejection.
Unlike standard hobbyist manuals, this book focuses on the engineering and "operating principles" of the devices. It covers: It covers: At its core
At its core, the book is a masterclass in geotech engineering tailored for the DIY community. It bridges the gap between basic hobbyist tutorials and advanced, math-heavy academic textbooks. Authors George Overton and Carl Moreland use their extensive backgrounds in electronics to demystify how these machines sense hidden targets beneath the soil. Key Book Specifications
The First In-depth Book on Metal Detector Technology Since 1927
How Eddy currents form and react to different metals (gold, silver, iron).
