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Metal Detector Guide

Discrimination In Depth

Discrimination has to be one of the most controversial metal detecting subjects ever. One persons says this another says that and on and on it go’s. We will cut through all of that nonsense and present to you only facts and techniques that have worked for many successful and renowned hobbyists. Because this subject is so touchy we will only present facts and try to stay away from opinion. We... Continue reading »»»

Hobby Metal Detectors

The use of metal detectors as a hobby has grown quite a bit in the past few years or so. Metal detectors provide hobbyists a tool to find metal artifacts that have been lost or hidden by others throughout the years. Some of the more common types of this hobby are beach metal detecting, coin shooting and relic hunting. Each form metal detecting provides its own form of satisfaction and... Continue reading »»»

Security Metal Detectors

Metal detectors have been used as security devices for many years and have continued to become more common place in places like schools, court houses and airports. These metal detectors are among the most important of all. They keep our kids safe and prevent people from entering sensitive areas with metal objects that could be used as weapons. After the events of 9/11 security has been stepped up in many areas,... Continue reading »»»

Military Metal Detectors

The main purpose of metal detectors in the military are to locate potentially hazardous mines. There are many countries around the world that are burdened with the problem of active mine fields. These mines pose a threat to civilians and also effect the economics of these areas. Metal detectors and specialized operators are on the front lines in these countries with their metal detectors. Using metal detectors for de mining purposes... Continue reading »»»

Industrial Metal Detectors

There are countless types of metal detectors used in various industries today. From conveyer type metal detectors to hand-held type metal detectors, they can be found in almost all industries and serve various purposes. Industrial metal detectors work to help keep us safe and healthy. For instance above is a picture of a type of metal detector that is used to detect metals in timber before it go’s on to being... Continue reading »»»

VLF or Very Low Frequency Metal Detectors

Inside the metal detector’s loop (sometimes called a search head, coil, antenna, etc.) is a coil of wire called the transmit coil. Electronic current is driven through the coil to create an electromagnetic field. The direction of the current flow is reversed several thousand times every second; the transmit frequency “operating frequency” refers to the number of times per second that the current flow goes from clockwise to counter... Continue reading »»»

BFO or Beat Frequency Oscillator Metal Detectors

BFO “Beat Frequency Oscillator” metal detectors are about the most basic of all metal detector technologies, in fact one can build one of these type metal detectors with relative ease. Because of the simplicity of BFO metal detectors they are relatively cheap. One can easily purchase a BFO hobby type metal detector for $25 to about $200. Don’t be fooled by the simplicity of this technology though BFO metal detectors... Continue reading »»»

P.I. or Pulse Induction Metal Detectors

PI “Pulse Induction” metal detectors are a less common type of metal detector that have found their home mostly among hobbyists. PI metal detectors work well in the water, on beaches and in gold fields. Many hobbyists swear by pulse PI technology. Pi metal detectors are definitely in a class of their own! How Pulse Induction Works PI “Pulse Induction” metal detectors can work by using one coil working solo or by... Continue reading »»»