Walk through metal detectors, also known as door frame metal detectors or security archway walk through metal detectors, are intended to safeguard public gatherings, industrial plants, jails, sports arenas, and other locations where it is prohibited to bring metal objects by offering a hygienic method of inspection. They are efficient at screening large numbers of patrons, are able to examine all types of metals, reveal potential threats like firearms and knives, and are now playing more crucial roles in security screening than ever in a quick, precise, and cost-effective manner.
In order to identify metal items, walk-through metal detectors employ a pulse induction technology that sends a brief burst of current through a coil of wire positioned in the side of the archway, creating an electromagnetic field around the coil in the vicinity of the passageway. A person going through holding a metal object disturbs the pulsing magnetic field and reflects it, which is picked up by another coil of wire and causes an alert to signify that the individual is carrying something metallic.
In order to ensure uniform detection throughout the aperture, walk-through metal detectors are equipped with multiple independently adjustable zones. This, along with the detectors' powerful processing capabilities, enables quick information gathering from numerous metal objects passing through at once and precise threat resolution based on the items' characteristics. In contrast, they are highly immune to mechanical and electromagnetic interference, automatically detecting the mechanical and electromagnetic interference of the installation site environment, and automatically adjusting to the working environment.
As an excellent reputable walk-through metal detector manufacturer and supplier with excellent manufacturing and R & D capabilities, Jayda company offers a broad selection of security walk-through metal detectors with a range of specifications and prices for use in various applications. As we continue to produce new security walk-through metal detectors with fashionable designs each year, we also offer customization to meet the needs of our customers.
What is a walk through metal detector?
A walk-through metal detector, also known as a security walk-through metal detector or a door frame metal detector, is an electronic device that can identify metal objects concealed within a person. It is used to protect public gatherings, industrial facilities, prisons, sports venues, and other locations where it is prohibited to carry metal objects. It offers a hygienic method of screening people for potentially harmful metal objects. It allows a high flow rate of people through the gate with a minimum number of annoyance alarms (with personal items for example such as coins, keys, or belt buckles can pass through the mag). The security walk through metal detector is supplied with multiple separate overlapping metal detectors that more accurately and quickly identify metal while tracking metal moving position sound and light alarm. With a small and light form, it can fit into any environment and is aesthetically appropriate for even the most subtle applications.
How does a walk through metal detector work?
Pulse induction (PI) technology is used in walk-through metal detectors to detect metal objects. The pulse induction device places a coil of wire (the transmitter) on the side of the archway and delivers a brief pulse of current through it. This generates an electromagnetic field around the coil that envelops the space required for a passage beneath the arch. A PI-based system typically transmits 100 pulses per second, though this can change depending on the model and make. The pulsing magnetic field will be disturbed and reflected if a person passing through the arch is holding a metal object. Another coil of wire (the receiver) picks this up and uses it to start an alert to let the operator know that the person is carrying something metallic. The greatest security arches have dual-side detection, which places coils for transmission and receiving on both sides of the arch. It is significantly simpler to install and set up because of this function, which permits uniform detection across the arch and offers greater noise reduction.
The types of walk through metal detectorsSingle zone walk through metal detector: simply detects the presence of metal objects, but does not locate where the metal objects are on the person's body.
Multi-zone walk through metal detector: will locate the whereabouts of any detected metal objects. The more detection zones supported by the device then the more accurate the location
The advantages of a walk through metal detector
1. multiple independently adjustable detection zones to ensure uniform detection throughout the aperture;
2. outfitted with a display that pinpoints the left, right, or center position of the height where the object(s) pass through the metal detector, indicating the location of the detected metal object(s);
3. employ DSP digital signal processing technology, which has excellent immunity to electromagnetic and mechanical interference and can automatically scan and detect mechanical and electromagnetic interference of the installation site environment; no requirement for routine calibration, significantly increasing ability to withstand dryness;
4. offers numerous alarm sound selection modes to accommodate various occasions.
5. attractive, discrete, and lightweight;
6. quick, accurate analysis of all parts of the body of people in transit, from the shoe level to the crossbar;
7. High transit flow rates and the minimum need for intervention by inspection personnel
The applications of walk through metal detectors