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FIBER OPTIC FUEL DETECTION SYSTEM

  • US 20090076744A1
  • Filed: 08/13/2007
  • Published: 03/19/2009
  • Est. Priority Date: 08/13/2007
  • Status: Active Grant
First Claim
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1. An optical fuel detection system comprising:

  • an outer tube having a reflective inner surface capable of reflecting light and configured to allow a liquid fuel to enter an interior of the outer tube on which the reflective inner surface is located;

    an inner tube located within the outer tube in which an area is present between the reflective inner surface; and

    a set of optical fibers mounted to an outer surface of the inner tube wherein each optical fiber in the set of optical fibers has a core that is exposed on each part of an optical fiber opposite to the reflective inner surface and wherein the optical fiber has a refractive index that is lower that the liquid fuel but higher than a gaseous form of any gas that may enter the area.

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