Pulse Induction Metal Detector
by J. A. Corbyn
This two-part article not only gives the construction details for a pulse induction metal detector, but also has a decent amount of theoretical explanantion on how the field of a PI coil and the target response behave. It was published in the March and April, 1980 issues if Wireless World, a popular British electronics magazine that was purchased by the publisher Reed Business Information and merged with Electronics World. I would like to thank Reed publishing for giving me permission to post this online version.

You will immediately notice that the on-screen PDF image of Part 1 is not very readable. However, once you print the PDF file the printouts are of acceptable quality. I will try to obtain a better copy when I return to the library, then rescan the whole thing and combine Parts 1 & 2 into a single PDF. I would appreciate feedback from anyone who has built this detector, especially if you have any comments on improvements. I will post any feedback on this page.