Explosive Detecting Technology and Development Summary

Strengthening security checks currently is the important thing especially in the world of important places, major events, such as the vital departments, airports, railways, subways, major international events, state events, major celebration activities. Liquid explosives particularity makes worldwide for further study of liquid explosive detecting equipment.

X-ray security inspection device , baggage x ray, security doors, ion mobility spectrometry bomb detection equipment is still about the most important, the most common, and most importantly the security of explosives detection equipment and technical means. These conventional equipment and techniques, to have a particular shape, metal detonating device, less complex and more volatile background explosives inspection results are more favorable, but the liquid explosive detecting equipment have certain technical drawbacks.

"Magic goes, the road climbs." For prevention of liquid explosives is not helpless. Countries have targeted to strengthen technology research, microwave detection technology, X-ray CT liquid detection technology, X-ray backscatter detection technology and other promising technologies and equipment have been gradually developed, to further improve the camp proof security equipment and technology systems.

At present, domestic liquid Inspection equipment means in accordance with the principles of the different techniques are the following: electrochemical detection technology, X-ray security detector, neutron detection technology, electromagnetic detection technology and other four categories. The following summarizes the rapid development in recent years, the application of stronger types of technical feasibility and corresponding liquid explosive detecting equipment research quiet conditions.

Electrochemical detection technology is divisible by capturing volatile liquid vapor fried particles or attached to the article residue trace detection technology using its property analysis to determine the existence of explosives and analyze specific ingredients. Electrochemical explosive detecting equipment with mature technology, simple detection of more volatile liquid explosives detection sensitivity is up to pg level.

 Portable metal detector is the most widely used explosion-proof safety inspection department and the largest number of conventional explosive detecting equipment. Principle of such equipment and technology is more mature, but the technology is still in continuous improvement and development which can be used raw liquid explosives detection technologies have dual energy CT scan, backscatter imaging technology.

While the work principle of neutron liquid Inspection equipment is: the use of neutron irradiation is detected by elemental decay, in order to determine what the ratio of the test object in C, H, O, N element content is and determine whether contains explosives contents. The advantages of this technique are: good penetration ability, high recognition rate, and good reliability and it can be used to detect explosives sealed liquid metal or high-density materials which are not easily affected by the anolyte packaging; the neutron liquid explosive detecting equipment is small, easy to carry.

Neutron detection of liquid explosives technology is a very promising technique. In China, neutron bomb technology research agencies have only a few applications in the field of explosion. That means the neutron liquid explosive detecting equipment is still in the exploratory stage.

Electromagnetic explosive detecting equipment refers to the use of special physical phenomena electromagnetic transmission, reflection, scattering to detect liquid explosives, the physical properties of the object are to be detected to obtain the modulation characteristics of images and patterns to identify the type of object shape and purpose.

In the long period of time, the baggage scanners will remain widely used and more new technology products will be put into use, and steady market share; variety of technology integration approach is the development trend of examination. It’ll achieve rapid detection of liquid explosives, long-range detection, covert detection which is a hot security technology; liquid security technology products and liquid explosive detecting equipment and the worsening security situation in the world, between the increasing security requirements, there is a relatively large gap.