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Here's a detector that may detect broken needles

Does anybody have anyidea what "Linear detection technolgy" is all about? I checked for patents assigned to this company and have not found any either in Europe or the USA.
 
Hi Russ and Dave,
I know Adams Electronics and met John Adams, the founder, many years ago. They are a UK company and well know in field of airport security detectors. I've no idea what "linear detection technology" is all about. Many of their earlier detectors were variations on the BFO principle. I'll get in touch with them and see if they will tell me <IMG SRC="/forums/images/wink.gif" BORDER=0 ALT=";)"> Also interested in how small a bit of needle they will find.
Eric.
 
Hi guys,
Word from a friend in Germany is that Linear Detection Technology is indeed BFO based. The way my friend described it, the difference frequency is multiplied many times using a phase locked loop. This can give EXTREME sensitivity to tiny targets in air. The technology is not however applicable to detecting in ground as it would also multiply the ground mineral effects. This sadly would seem to limit it to industrial usage such as detecting metal in foodstuffs and other non ground detection systems. It does however go to show that the venerable old BFO is still alive and well, Dave. * * *
 
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