The world's first metal detector was born in 1960, which was originally applied in industrial and mining, used as tools to check the purity of walkthrough metal detectors
to raise economic benefits. With the development of society and economy, the rate of crime is rising, metal detectors was introduced into a new field in 1970- - security detection, and this is the prototype of the walkthrough metal detectors today.In the 1970s, with the rapid development of aviation, hijacking and other dangerous events occurred, airlines and airport security gradually be taken seriously, therefore, walkthrough metal detectors got wide applications quickly, and played an important role in screening contraband. Because of walkthrough metal detectors’ good performance in the airport security detection, sports games, exhibitions and some important government departments began to use waterproof metal detector
as necessary security equipment. These applications in new fields of the Development of walkthrough metal detectors also put forward higher demands, require higher detection sensitivity and anti-interference ability. At last, coil design of walkthrough metal detectors continuously improved, and circuit for noise suppression ability has been greatly improved.Affected by the impact of the 911 terrorist attacks, security has been stepped up in all walks of life work. Among them, the safety of the public entertainment places attracted much attention of the society.
The traditional simple single walkthrough metal detectors cannot satisfy the requirement of security when taking protect the privacy of others into consideration at the same time. Security personnel need equipment can identify specific hidden location of metal object. So multi-location metal detection technology has been studied, as a consequence, multi-location walkthrough metal detectors was invented, which is a significant change in the development history of the walkthrough metal detectors once again, from the original simple magnetic field change into more and more luggage detector factory
. At the same time, with the relevant industry technology matures, all kinds of new type of integrated circuit and new signal processing technologies can be used in walkthrough metal detectors. Walkthrough metal detectors from analog to digital, single or mixing frequency continuous wave to pulse wave, its performance is more and more outstanding, leading more and more application area.With the development of security technology, more and more functions will be integrated into the walkthrough metal detectors. These changes will affect the direction of industry technological innovation. The following is basic trends in technology overall.1) Integration of network control. The technology will increasingly focus on the integration of network control in future development. Integration solutions, is multiple system ( such as walkthrough metal detectors and X ray baggage scanners) share a graphical user interface, sharing the common database in cross-platform, and independent system with some restricting factors will soon quit industry history stage, so the walkthrough metal detectors will also join the related technology, make its development towards the direction of the integration of network control, reduce staff costs and improve the work efficiency of the whole system.2) Safety information collection X Ray baggage scanner company
. In many special occasions, such as the important meeting, need to add the information acquisition function, in which the security is work as an information collection platform, such as card reader, monitoring camera etc. This can not only make notes of the participants accordingly, increase the safety of meeting, also can make synchronization record of personnel presented.