Skip to main content

Overview

Pitch deck

SBIRs

Distributed Acoustic Sensing

Based on distributed acoustic sensing

  • Prisma Photonics
    • uses 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 fiber and measuring 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

Microphone

Back to top