The metal detector frame is veryoften - at train stations, in shops and clubs. Such devices work by creating an electromagnetic field, when in the event of the appearance of metal objects it is distorted. More advanced and reliable in the work are stationary models, which are also called arched.
The metal detector is placed in the pass zone or immediatelyAfter the door, or in a special fenced area. Power is provided by an alternating current. The installation features of these devices include a flat surface that does not emit vibrations, and remoteness from any metal products. In general, the main way to protect crowded spaces is the frame-metal detector. The instruction of each model prescribes attention to a number of trifles concerning the setting and competent installation. All stationary models have a common operating principle, and the differences are expressed only in technical characteristics:
A metal detector is a device thatdetermines and classifies the metal. The wire lies inside the transmission frame, and the electric current moves through it - it creates an electromagnetic field. If a metal object is near the frame, the magnetic field will begin to change, resulting in an electric current being produced. They will create a magnetic field that will move in the opposite direction to the transmitter's main field, and the metal will be detected. The outer frame-metal detector also has a coil that maximally neutralizes the effect of the transmitting coil-it is called a receiver. When choosing this equipment, it is important to take into account the quality of discrimination, that is, the detector must recognize and classify the detected objects.
How does the frame-metal detectors work? In fact, the principle is simple: from one wall of the frame to another, a radio signal is sent, which is then returned. But radio waves can not pass through metal, so when colliding with metal products, the reflected signal will return much faster. When the reflection time of the sent signal decreases, the device immediately works.
In this scenario, the framework will respond toany metal products - from rivets on clothes to zippers on a bag. Setting the frame-metal detector can reduce the sensitivity of the device, which at the same time does not affect its effectiveness. It turns out that all the large items of metal that will be carried through the frame, will immediately show up.
Today, it is increasingly said thatframe-metal detector harms human health. Experts say that the degree of harm depends only on the principle of operation of a particular device. Most frames fix changes in the magnetic field if metal objects are introduced into it. When we pass through the framework, we are permeated by an electromagnetic field, but it is of low intensity. It turns out that the frame-metal detector harm can not cause.
This is the simplest, but at the same time effectivea metal detector manufactured in the USA. The upper part of the arch is supplemented with a control unit. You can adjust the frame to respond to any weight of metal - from several grams to a kilogram and more. The stationary frames of metal detectors GARRETT Magnascanner CS-5000 have a number of features:
Frame-metal detector GARRETT MagnascannerCS-5000 is made in the form of an arch, the panels of which are located at a distance of 80 cm from each other. The control and display unit located on top is protected from external influences. Many buyers choose the products of this proven brand, noting the modernity of design, practicality of coating and impact resistance. When metal hits the field of view, a light and an acoustic signal signal it.
The stationary frame-metal detector "Search-VP"easily detects firearms and large metal objects, which are often hidden under clothing. The peculiarity of the model is that it can also be used outdoors under the influence of external natural factors. The distinctive features of this framework include the following:
Arched metal detector has a microprocessor control and is widely used when it is necessary to detect metal objects when people are being searched.
The model has a modern design andpossibility of operation in any temperature conditions. The installation of metal detector frames is simple, besides the equipment has a number of additional features:
These metal-detector frames are portable, andmobility is the main advantage that many users have noted. The construction itself is demountable and consists of 7 elements. Thanks to the circuit, which is controlled by the microprocessor, a uniform and high-quality response to metal objects located in the range of the device is ensured. The advantage of the model is the possibility of working with a battery. In addition, thanks to a light weight, you can transport the device even in the trunk of the car. The capacity of the frames of the metal detector of this model is 40-60 people.
Stationary arched metal detector of this brandallows you to check a person and identify any metal objects. The system operates in six zones and has an adjustable sensitivity, itself counts passengers and the number of alarms. The manufacturer guarantees absolute safety when passing a person through the frame. Signal processing is carried out with the help of a perspective block, due to which the device works reliably and stably under any conditions.
This frame detects metal objectsIt is easy, and the information on the detected objects is displayed on the front panel thanks to a 6-zone indicator. The peculiarity of the model is the possibility of adjusting the sensitivity in a wide range.
These systems are designed specifically for equipping stations, stations, stadiums, banks, schools, hospitals and any establishments where there are many people. The distinctive features of this framework include:
High selectivity is the main feature,which distinguishes this metal detector frame. The principle of operation of this equipment is the same as that of the other analogs. Buyers say that these frames are ideal for installation where there is high traffic - in hotels, museums, concert halls. The second advantage, in the opinion of buyers, is an aesthetic design that seamlessly fits into any interior. The system allows to regulate the degree of sensitivity, and the installation is simple, not requiring preliminary and periodic calibration.
Modern technologies open largeopportunities to ensure good throughput of people in various institutions and at the same time to prevent emergencies. The most important thing is that all the frames-metal detectors are safe for people, which is confirmed by quality certificates. Simplicity of installation allows to provide safety in any crowded place, in due time revealing illegally carried metal objects.
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