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An overview of underground metal detectors
- Nov 30, 2017 -

Underground metal detectors are used advanced technology, it has a wide range of detection, accurate positioning, strong resolution, easy to operate and so on. Metal detectors are mainly used to detect and identify buried underground metal objects. In addition to military applications, it is also widely used in: safety inspection, archaeology, prospecting, search for scrap metal. Also known as "Exploration Iron" is a good helper for waste recovery.


Underground metal detectors using sound alarm and instrument display, the depth of the probe is closely related to the area, shape and weight of the metal being explored, generally speaking, the larger the area, the larger the quantity, the greater the corresponding depth of detection; Conversely, the smaller the area, the less the quantity, the smaller the corresponding depth.

Metal buried in the ground, through thick soil to detect, is bound to be affected by the geological structure. The strata contain a wide variety of minerals, and they also cause the metal to detect signals that will mask the metal's signal and create a false impression. Using the old metal detectors have this experience, with the probe near the mound, stones, bricks will be issued alarm sound, this phenomenon is called "mineralization reaction." For this reason, old-fashioned metal detectors can only detect metals in shallow soil and are powerless to target metal buried underground. Underground metal detectors are equipped with advanced ground balance system, which can eliminate the interference of "mineralization reaction" and greatly improve the detection depth and effect of the instrument.