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Overview

Pitch deck

SBIRs

Distributed Acoustic Sensing

Based

    on
  • See more at distributed acoustic sensing

  • Primarily used for perimeter security
  • Mostly doing intensity analysis
    • PrismaLumaTech Photonicsis
        doing
      • usesfrequency, fiber optic cables as an acoustic sensor to detect different conditions (unsure what conditions)
      • Israeli company
    • Optasense
      • same as prisma photonics
      • Fiber-optic distributed acoustic sensing (DAS) systems work by pulsing light into a fiberphase, and measuringpolarity the backscattered light along the fiber length. An acoustic pressure wave that contacts the cable will create a small strain in the fiber and change the backscatter profile. The strain can be measured at surface, depth-matched using the speed of light in the fiber, and converted back into an acoustic signal.
      • they send a pulse and then check to see what kind of light is sent back early
        • that's what backscattering is
      • Acquired by Luna
    • Line Vision, inc.
      • LIDAR and weather measurements
      • monitors transmission lines
    • Silixa
      • DAS for oil and gas
      • Acquired by Luna
    • Luna
      • Buying up all the smaller DAS companies, like Silixa and Optasense
    • Luma Tech
      • going straight to the fiber-optic cable companiesanalysis

    Microphone

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