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metal detector |
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metal detector [′med·əl di‚tek·tər] (electronics) An electronic device for detecting concealed metal objects, such as guns, knives, or buried pipelines, generally by radiating a high-frequency electromagnetic field and detecting the change produced in that field by the ferrous or nonferrous metal object being sought. Also known as electronic locator; metal locator; radio metal locator. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Instead travelers pass through a metal detector gateway and their bags through an X-ray machine, with a random sample also checked for explosives residue using trace particle detectors. First, the Machine-Mounted Separator (MMS) is an electronic metal detector that senses and rejects all types of metal--not just those that respond to magnetism. The district is to have card-reading machines, which are to be set up at each entrance and metal detector, where students will have to swipe their cards upon entering. |
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