Of course, everyone has their own unique needs, goals and preferences when choosing a metal detector. The ideal device for one user may not be suitable for another user. Therefore, when choosing metal detectors to search for treasures, it is important to consider many factors. First of all, you need to navigate the large selection of models available for ordering in specialized stores. Let’s find out together what metal detectors are and how to use them.
How to choose the best metal detector: what are its types and principles of operation
Novice and experienced treasure hunters should fully understand the types and principles of operation of metal detectors.
What are metal detectors?
A metal detector for searching for valuables is actually an electronic device designed to detect metals in soil, water, or other environments. It is widely used in various fields, including archaeology, geology, security and treasure hunting.
There are several types of devices, each with its own features and applications. Here are the most common types of metal detectors today:
Each type of metal detector has its own features and advantages depending on the specific task. The choice of the ideal model depends on the needs of the user, the type and depth of the metal objects detected, as well as the conditions of use.
We select the best metal detector based on the principle of operation
What is the principle of operation of a metal detector? Before we go into more detail, let’s get to know the basics. The basis of most metal detectors is the principle of induction – a change in the electric current in the winding in the presence of a metal object.
Metal detectors usually have a built-in signal source that generates a high-frequency electromagnetic field. It is created with the help of an alternating current flowing through the transfer coil (coil). Typically, metal detectors have several transfer coils, which can be arranged parallel or perpendicular to each other to ensure better sensitivity and accuracy.
When a metal object is located in an electromagnetic field of action, a reaction occurs between the field and the metal. Then, the electrical signal received from the detector coil is sent to the electronic circuit of the device for processing. Determines whether there is a metal object in the field of work.
For most metal detector models, the manufacturer provides the ability to adjust sensitivity and operating frequency. This allows you to use a single device to search for different types of minerals in any environment. For example, in some cases it is necessary to increase sensitivity to detect small objects, and in others to reduce them in order to rule out false positive results.
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