What Is Walk Through Metal Detector?

Going other countries or cities, we take our luggage and go to the station, and the walk through security gate metal detector is the way we must pass before taking the transportation.

What is walk through metal detector?

The walk through security gate metal detector is a way to detect whether personnel are carrying metal objects. The detection device is also called archway metal detector. Metal detection security gates are mainly used in airports, stations, large conferences and other public places with large crowds to check metal objects hidden on the human body, such as guns, controlled knives, etc.

The few high-end security gates on the market can make the security gate immediately alarm when the inspected person passes through the security gate and the metal carried on the person exceeds the parameter value preset according to the weight, quantity or shape. The location of the metal that allows the security personnel to discover the metal objects that the person is carrying in time. Most factory-specific security gates only identify whether metal objects are carried, locate and call the police to prevent products from being taken out of the factory in violation of regulations. The best-performing security gate can detect paperclip-sized items.

Application

• Production enterprises: including electronics (such as hard drives, mobile phones, MP3, translators, voice recorders, electronic devices, etc.), wires and cables, electrical appliances, gold and silver jewelry, cigarettes, medicines, ink cartridges, industrial and mining, hardware, electroplating, Die casting, plumbing equipment, precious metals (copper, aluminum, etc.) and their processing related industries.

• Government departments: including public security bureaus, procuratorates, courts, prisons, detention centers, labor camps, drug rehabilitation centers, etc.

• Public places: including stadiums, entertainment venues (disco halls, dance halls, etc.), airports, railway stations, bus stations, ports, exhibition halls, museums, banks, oil depots, power stations, etc.

Advantages

Strong sensitivity, simple installation, convenient and practical

Features

Check the metal objects carried by the body. How to use Pass through the door under normal working conditions!

Use guide

Pass through the door under normal working conditions!

Working principle

The principle of security gate is 3.5-4.95M sine oscillation generated by crystal oscillator, which is divided into 7.6K sine wave by frequency divider. After the power is amplified by triode and coil, it is input into the large coil of door panel (zone 7) for electromagnetic wave emission. The coils in 1-6 areas receive respectively. After receiving, the received signal is compared with the reference signal. After the change is found, the output level of the capture card is changed. The CPU scans the data of the 6 location capture card within 280 milliseconds, determines the location of the metal and outputs the display.

Structure

1. Door structure: It is composed of 1 large coil, 6 small coils, compensation coil and graphite. 2. Chassis structure Security door

Work process during detection

CPU detection→a group of infrared blocked→check whether the data of each acquisition card changes→alarm→check another group of infrared→reset and re-detect.