Best Metal Detectors - What Everyone Should Know

When it comes to finding the best metal detectors, the basic question is to assess the purpose for which it will be used. Modern Metal Detectors employ various technologies and come with different sets of features suitable for detection of metal contaminants or even artifacts beneath ground. Based on these applications, the different types of Metal Detectors are as follows:

• Treasure Metal Detectors

• Underwater Metal Detectors

• Industrial Metal Detectors

• Security Metal Detectors

Metal detection is all about the balance between sensitivity to detect the smallest articles and detecting useless trash. So there is no All Rounder Metal Detector as such that works best with every types of material or surface. That is why; Special Purposes Metal Detectors are demanded by treasure hunting enthusiasts and industrial buyers alike.

Based on the technology for metal detection, Metal Detectors are also classified as:

• Very Low Frequency Metal Detectors: Suitable for diverse purposes, they have a coil that sends low-frequency magnetic field onto the ground which is reflected by a metal object, if present. The other coil amplifies this signal and an alarm is sounded.

• Pulse Induction Metal Detectors: These are used for detecting items buried deep under the ground and consist of a single coil for very accurate detection that can deflect stray signals.

• Beat Frequency Oscillation Metal Detectors: They have two separate wire coils and are considered to be simple in functioning, a little inconsistent in comparison to others and inexpensive.

Gold Metal Detectors have a type of higher gain in the unit for higher sensitivity to minute pieces of gold but this may be problematic for coin hunters who will be alerted for every small piece of scrap metal while using them. At times, Metal Detectors developed for one task may be useful for other type of metal detection as well. General Purpose Metal Detectors on the other hand cannot pick up grain-size metal objects but work very well with rubbish metal rejection as compared to Gold Metal Detectors.

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