Magnetic induction mine arming, disarming and simulation system

  • US 5,027,709 A
  • Filed: 11/13/1990
  • Issued: 07/02/1991
  • Est. Priority Date: 04/26/1990
  • Status: Expired due to Fees
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First Claim
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1. A system comprisinga transportable search unit including a primary loop in which ac current is resonated to generate an oscillating magnetic field of at least one respective predetermined frequency,power supply means connected with said search unit for providing power to said search unit, including for said generating of said magnetic field,a mine device includinga secondary loop for being inductively magnetically coupled with said primary loop and to resonate at said at least one predetermined frequency when said search unit approaches said mine device,power conversion means for deriving power from said resonating secondary loop, andsignalling means powered by said derived power from said power conversion means for providing a signal indicating that said search unit attained sufficient proximity to said mine device as determined by the extent of the inductive magnetic coupling between said primary and secondary loops, andreception means transported with said search unit for receiving said signal, for indicating thereby said attainment of said sufficient proximity,wherein information is transferred from said mine device to said reception means at a frequency different from each said predetermined frequency of the resonation of the primary loop for the magnetic induction coupling with said secondary loop.

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