- Types:
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metal detector
detector that gives a signal when it detects the presence of metal; used to detect the presence of stray bits of metal in food products or to find buried metal
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mine detector
detector consisting of an electromagnetic device; used to locate explosive mines
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electric eye, magic eye, photocell, photoconductive cell, photoelectric cell
a transducer used to detect and measure light and other radiations
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trace detector
a screening device for traces of explosives; used at airline terminals
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selenium cell
a photoelectric cell that uses a strip of selenium
