Metal detector "Fisher": features, reviews

A metal Detector is the device that allows its owner to find metal objects of different sizes and at different depth. The parameters depend on the modification of the device.

The remainder of this article will examine why you need such a device, its functions, characteristics, and models of metal detectors American "Fisher".

What are the metal detectors?

Depending on what the aim is, in each case, you will need your own instrument. From its technical characteristics will depend on the quality of the job.

Metal Detectors are of such types:

• Deep – they're versatile, cover a depth of six meters;
• Ground & ndash; easy to use, but working on a small distance from the surface of earth – it is to such devices include metal detectors "Fisher";
• Pinpointer – specialized professional device that can find the smallest metal objects down to pieces;
• Underwater – fully sealed unit to scan the waters.

Principle of operation

The action of the detector is comparable to the principle of operation of radar-it detects on the calculated depth of stationary metal objects using electromagnetic waves emitted by the search coil. On the surface of a metal object under the influence of these waves causes eddy current flow producing a secondary electromagnetic field that lowers and modifies the configuration of the main field coil.

The Waves are reflected from the surface of objects and fall into the field of analysis of special microprocessor that processes the incoming information.

After that become well-known technical and physical characteristics of the thing – the composition, shape and depth at which the object is detected. The composition is determined by changes in specific conductivity of the object.

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The fact that there has been a detection, the device reports the light and sound signals.

Fields of application devices

Specialized devices for searching of metal objects, including metal detectors "Fisher", are not widely used in production, but can be of great help in your professional or everyday terms.

A metal Detector is useful in the following cases:

• More complex professional tools to work with greater depth will require archaeologists;
• Useful such a device search units for the detection of metallic relics of the wars of different historical times;
• If the clearing from foreign objects need of infield – for this useful the simple soil model the type of metal detector “Fisher F2";
• Use such devices to search for lost items on the beaches-vacationers often lose jewelry because of carelessness;
• Metal detectors are used in crowded places to search for explosive devices – airports, railway stations, shopping centers.

About the firm “Fischer”

The American company Fisher with one thousand nine hundred and thirty-first year, is a reputable and well known manufacturer in the field of devices for search items. Her technologically advanced devices are used in a variety of fields-from security to search for treasures.

The Company produces a family of analog, digital, multi and single-frequency devices. Among them are full-fledged notebooks and portable devices of the type Fisher MScope – the world's only foldable Hiking metal detector "Fisher". Reviews about it the most favorable: instantly folds up and moves thanks to integrated wheels, is charged by a standard network or batteries. Widely used – in schools, in factories, in military operations.

Also, the company's products are used to search for underground communications – magnetometers, tracers, detectors, and correlators leak level indicators, metal detectors. Devices find application in the areas of water and gas facilities.

Ground metal detectors – assignment

In the modern world some time ago has spread a new kind of hobby – search for devices. It's an entertaining lesson on the discovery of things hidden in the ground and abandoned structures. A dream to find that treasure and treasures. In addition, this hobby promotes unity and communication related to one matter, a useful finding in the fresh air.

The Earth keeps a lot of mysterious, and the deeper you find some thing, the more expensive it is.

With the help of ground metal detectors can determine the location of modern and ancient coins. And if the first is equal to the nominal values, then the second, if lucky, can cost a lot of money. Often under the ground find a Royal silver coins and pennies.

Search teams in their missions often find military weapons, medals, a number of historic insignia and other items.

Currently, the series ground metal detectors "Fisher" is the arrangement of levels:

• Primary – F2;
• Semi-professional – early models of the F4, F5 and top – F11, F22, F44;
• Professional – devices premium F70, F75.

Features of new model F22

The Device of this series is the second in a series of three models last year.

This device presents a brand new feature:

• Digital display
• Sound choice of four keys;
• Setup of the device;
• Built-in memory;
• Volume control;
• Partially waterproof.

A metal Detector “Fisher 22” differs from the third model – F44 fact that it does not have manual balance mode illumination and ground, and the coil is smaller. It has three built-in programs, and one – for self-configuration. Powered by two standard AA batteries for twenty-five hours.

An Interesting feature of this device is the one that after switching on the screen for a few seconds indicates the serial number – so the manufacturer has secured the symptom by erasing from the body. In case of theft now to find a device will be easier.

After enabling, the detector allows the user to adjust the volume and tone of sound, sensitivity to electromagnetic interference. Custom settings allow you to remove out of sight the unwanted objects.

The Device is equipped with a coil of a different type – its new form allows you to explore a larger surface than the old one. At the end of the coil click activates pinpointer.

F44 metal Detector

This detector has three tribes, which are connected to spring-loaded buttons firmly fastened using collet clamps. This design allows you to eliminate any backlash. Metal detector “Fisher 44" the reviews confirm this fact, performed quite efficiently, soundly and is now the best choice in its price category.

The Device has a waterproof coil complex oblong shape, called the pear-shaped, weighing in at three hundred and fifty grams. The engineers who created this device claim that this form will allow you to conduct searches in hard to reach areas – under the roots of trees, among rocks or in corners of building foundations.

A Power like the others in this series, but the headphone Jack is at the side, which is much easier than in other models – rear. The display is well segmented and has several lighting settings and quite informative.

Metal Detector premium F75

A metal Detector “Fisher 75” belongs to the class of professional equipment. Despite this, it is easy to operate and learn. Those who use it, say the one downside – a sharp sound. But it is justified by the sensitive coil that allows to find even small metal objects at great depth.

Also, users report that this device works great on metal littered territories and almost instantly processes the signals.

In General, it can be noted that the company's products has good performance and is suitable for both beginners in search, and professionals in various fields.