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How the frame detectors work in the subway and railway stations
Metal detectors, simply put, the framework that we see at airports, railway stations and in the subway, can catch any dangerous substances and objects. But still the main thing remains the human factor-only competent specialists will be able to identify the offender in a large stream. Experts have told about principles of work of metal detectors and tasks of employees of public safety.
How the frame detectors work in the subway and railway stations
There are two types of metal detectors on most public transport facilities and buildings in large establishments: the frame (arch) through which the flow of people passes and manual for personal inspection. The very principle of operation of arch and manual detectors is identical. They differ only in the level of sensitivity. And, for example, in case of doubtful result of passing through a frame the representative of protection can additionally scan by a manual device.

The use of such detectors is regulated, in particular, by the law "on transport security".

portable and hand-held metal detectors, Analyzing and chemical equipment, as well as other devices that provide detection of weapons, explosives or other devices, items and substances in respect of which are prohibited or restricted to move to the zone Transport security.
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Through metal detectors will be held in the school children
Through metal detectors will be held in the school children
Soon the students will begin to pass through metal detectors at the entrance to the schools.
Accessories for detector and other useful
Accessories for detector and other useful
They are especially useful when working in places where strong noise
(motor transport, sea surf, Storm River, etc.)
How To Make a Homemade Metal Detector
Make a Homemade Metal Detector

The process of creating your own detector cheerful and instructive. If you know how to make a metal detector with your hands at home, you can not only save thousands on its acquisition, but also enriched, finding the treasure.
Homemade Metal Detector Without Radio
Homemade Metal Detector Without Radio

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How to make homemade metal detector
How to make homemade metal detector

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Homemade Metal Detector Simple & Sensitive
Homemade Metal Detector Simple & Sensitive

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Simple metal detector on two chips NE 555
Simple metal detector on two chips NE 555
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simple vlf metal detector circuit
simple vlf metal detector circuit

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