10 Best metal detector of 2018

  • V-Break, Variable Tone Breakpoint
  • Pinpoint Mode with Depth Indicator
  • FeTone, Adjustable Iron Audio
  • BOUNTY HUNTER
  • BOUNTY HUNTER
  • All metal & Discrimination mode - In all-metal mode, all...
  • Pinpoint Function - Accurate location can be detected by...
  • Adjustable sensitivity - In order to detect the target...
  • Dimensions: 2 diam. x 9H in.
  • Ideal for beginners
  • Waterproof to 10 ft.
  • Quest Metal Detectors
  • V-Break, Variable Tone Breakpoint
  • Pinpoint Mode with Depth Indicator
  • FeTone, Adjustable Iron Audio
  • FIND BURIED TREASURE and feel the thrill of discovery when...
  • EASY TO USE for all ages, sizes and skill levels from...
  • COMPACT, LARGE WATERPROOF 10" COIL, LIGHTWEIGHT and...
  • 【All-Metal Mode &Discrimination Mode 】- meets your...
  • 【HIGH-ACCURACY 】- Metal can be detected once coil...
  • 【WATER PROOF SEARCH COIL】 - Both the stem and the coil...
  • ★360° SIDE-SCAN& PINPOINT TIP DETECTION - metal detector...
  • ★EASY OPERATED,SINGLE BUTTON - Single button. the LED...
  • ★PORTABLE, TAKE IT ANYWHERE YOU LIKE - 9 in x 1.5in size...

Metal detector guide

Metal detectors are devices for locating

invisible metallic parts. They are used to control persons, to trace lines in buildings, in archeology and in treasure hunts.

historical development

Metal detectors were invented at the end of the 19th century. They promised themselves advantages, especially in mining. But until the 1930s, usable metal detectors were developed. In 1937, the technician Fischer was issued the first patent for a metal detectors. Fischer had recognized that layering ore interfered with radio waves. But still such devices were very heavy and unwieldy. Only the invention of the induction balance system brought a great leap in development for the metal detector. The operation was simple: two coils were brought into an electrical balance. Metal in the immediate vicinity destroyed this balance. At about the same time, devices based on pulse induction were developed. High-voltage pulses are sent to the area to be examined. When metallic objects are near, an eddy current is generated which causes a signal in the receiving coil.

The construction of metal detectors

Modern metal detectors consist mainly of two components: a coil and an electronic circuit. The coil is traversed by an alternating current in low frequency. This coil is available in different versions. Flat to scan the floor or people or stretched in a cylinder to find metal in hollow spaces or shafts. The coil and the electronics are connected by means of a line. For better transport and use, the coil and electronics are mounted on a linkage.

The function of a metal detectors

In principle, two modes of operation are distinguished. During pulse measurement, high-voltage pulses are emitted. As a result, eddy currents are generated in metal objects. These are registered by the receiving coil. Due to the duration and the course different metals can be distinguished. It is also possible to draw conclusions about the size of the object. The second alternative is based on AC excitation.

The use of metal detectors

Metal detectors are used in many areas. You can find them in person control at airports and in football stadiums. They make an important contribution to finding mines or ammunition. Both professionally and privately, metal detectors are used in archeology and treasure hunting.

Examples of metal detectors

Metal detectors are available in various designs and equipment. For example, the fully automatic Metal DetectorDeep Target of Seben. The detection depth is up to two meters deep. Another device is the depth probe from FDS. The seeker head on this device is also suitable for searching in the water.

*Last update on 2018-07-30 / Affiliate links(we get a commission when you buy on amazon) / Images from Amazon Product Advertising API