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While traveling airplane you have to pass through a walk-through metal detector for security check up. These security devices have also been used in multiple places like schools, events hall, government offices … etc. They are part of a total security system that includes CCTV, door access control, and so on.<\/p>\n
How They Work<\/p>\n
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How Walk through Metal Detectors Work,Walk-through metal detectors<\/a> are using pulse induction<\/strong> (PI) technology. The PI systems\u00a0send powerful, short bursts (pulses) of current through the coil of wire. Each pulse generates a short magnetic field. When a piece of metal passes through the magnetic field, a reflected magnetic field is created. This magnetic field then reacts with the receiver coil, which, in turn, triggers the alarm system. This subsequent current is called the reflected pulse<\/strong> and lasts only about 30 microseconds.<\/p>\n The multi-zone walk-through metal detectors contain multiple coils that create the separate detection zone. They can detect multiple objects, and display all the areas where they can be found. Systems are available with up to 33 zones.\u00a0There are alarm lights on the side of the unit making it much easier for the security person to find the object.\u00a0 To learn more, take a look at our video\u00a0about \u201cHow Walk-through Metal Detectors Work<\/em><\/a>.\u201d<\/p>\n <\/p>\n How Walk through Metal Detectors Work<\/p>\n The Health Physics Society wrote a fact sheet on airport security that said, \u201cEven though magnetic fields [created by metal detectors] are a form of radiation, the radiation the machine emits is nonionizing and does not cause biological damage. Therefore, even repeated exposure to metal detectors has no associated radiation risk.\u201d With this in mind, airport metal detectors provide a very effective and safe method of enforcing security in airports, schools, and businesses.<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" How Walk through Metal Detectors Work While traveling airplane you have to pass through a walk-through metal detector for security check up. These security devices have also been used in multiple places like schools, events hall, government offices … etc. They are part of a total security system that includes CCTV, door access control,…<\/p>\n","protected":false},"author":5,"featured_media":4909,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[121],"tags":[],"_links":{"self":[{"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/posts\/4477"}],"collection":[{"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/comments?post=4477"}],"version-history":[{"count":1,"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/posts\/4477\/revisions"}],"predecessor-version":[{"id":5933,"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/posts\/4477\/revisions\/5933"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/media\/4909"}],"wp:attachment":[{"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/media?parent=4477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/categories?post=4477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gold-rush.ae\/en\/wp-json\/wp\/v2\/tags?post=4477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/gold-rush.ae\/wp-content\/uploads\/2020\/10\/03_pd6500i_gallery.jpg\" "\\"\\"")
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