Beat Balance Metal Detector

Published:2012/9/13 21:07:00 Author:Ecco | Keyword: Beat Balance, Metal Detector | From:SeekIC

Various embodiments of the BB metal detector have been published, and it has been widely described in the press as a new genre. Instead of using a search and a reference oscillator as with BFO, or Tx and Rx coils as with IB, it uses two transmitters or search oscillators with IB-style coil overlap. The frequencies of the two oscillators are then mixed in similar fashion to BFO, to produce an audible heterodyne. On the surface of it, this design would seem to represent little more than a twinned BFO metal detector. Source: NEXT.GR



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