Downed aircraft location system and method
First Claim
Patent Images
1. An emitter comprising:
- six orthogonal coils;
six printed circuit boards forming a cube, wherein each of said six orthogonal coils is formed as a spiral on one printed circuit board;
an incompressible potting material filling said cube;
a DC power source within said cube;
an oscillating voltage source within said cube connecting the coils in parallel, and the oscillating voltage source being connected to said DC power source;
wherein said oscillating voltage source oscillates at a frequency between 30-200 hz;
wherein the coils and the oscillating voltage source together generate an omnidirectional EM signal at a frequency; and
wherein the potting material is at least semi-transparent to said EM signal.
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Accused Products
Abstract
An EM emitter includes at least three orthogonal coils driven by an oscillating voltage source, with the coils being electrically in parallel or series. When used in a vehicle, particularly an airplane, and the vehicle is lost, e.g., sinks, the emitter'"'"'s EM signal passes through water with little attenuation and can be detected and the vehicle located.
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Citations
5 Claims
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1. An emitter comprising:
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six orthogonal coils; six printed circuit boards forming a cube, wherein each of said six orthogonal coils is formed as a spiral on one printed circuit board; an incompressible potting material filling said cube; a DC power source within said cube; an oscillating voltage source within said cube connecting the coils in parallel, and the oscillating voltage source being connected to said DC power source; wherein said oscillating voltage source oscillates at a frequency between 30-200 hz; wherein the coils and the oscillating voltage source together generate an omnidirectional EM signal at a frequency; and wherein the potting material is at least semi-transparent to said EM signal. - View Dependent Claims (2, 3, 4, 5)
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Specification