Inside the Metal Detector offers hard-to-find information on the technology behind metal detectors. The basics of induction and eddy currents are explained, plus the major categories of BFO, TR, motion VLF, and PI are covered. Included are hands-on experiments and complete metal detector projects in every category. A list of resources includes web sites, books, magazine articles, and patents. Note: This book is the 2nd edition; there is a 3rd edition available which is greatly expanded, mostly re-written, and with new and different projects. Because the projects are not duplicated in the 3rd edition, this edition will remain available for those who want the additional information.