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XARION Laser Acoustics

XARION Laser Acoustics is a provider of unique, laser-based acoustic sensors. The membrane-free optical microphone uses an IP-protected principle of operation: it detects sound based on its ability to change the speed of light. Since no mechanically movable or deformable parts are involved in this approach, the sensor comes with a linear frequency response free from mechanical resonances. The microphone shows an unprecedented frequency bandwidth exceeding state of the art solutions by a factor of ten.

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  • SNAPSHOT
  • Austria
    2012
    Private
    < $10m
    11 - 50
    Open website
  • TECHNOLOGY STACK
  • XARION Laser Acoustics’s Tech Stack maps XARION Laser Acoustics’s participation in the IoT tech stack.
    • Application Layer
    • Functional Applications

    • Cloud Layer
    • Platform as a Service
      Infrastructure as a Service

    • Edge Layer
    • Automation & Control
      Processors & Edge Intelligence
      Actuators
      Sensors

    • Devices Layer
    • Robots
      Drones
      Wearables
    • Supporting
      Technologies
    • Analytics & Modeling
      Application Infrastructure & Middleware
      Cybersecurity & Privacy
      Networks & Connectivity
    Technological Capability
    None
    Minor
    Moderate
    Strong
  • IOT SNAPSHOT
  • XARION Laser Acoustics’s IoT Snapshot maps the range and focus areas of XARION Laser Acoustics’s IoT business across Technologies, Use Cases, Industries, and Services. Only categories with active products will be shown. Missing categories indicate that there is no activity in those areas.
    Technologies
    Sensors
    Lidar & Lazer Scanners
    Optical Sensors
    Functional Applications
    Remote Monitoring & Control Systems
    Use Cases
    Visual Quality Detection
    Functions
    Quality Assurance
    Industries
    Automotive
    Healthcare & Hospitals
    Services
    Testing & Certification
  • IOT SOLUTIONS
  • For the detection of sound waves, conventional microphones use membranes or other moving parts as intermediaries between the incoming acoustic and the resulting electrical quantity. For acoustic ultrasound sensors based on piezoelectric crystals, the approach is similar: the acoustic wave mechanically deforms the crystal. In contrast, the patented idea behind XARION’s Optical Microphone is to exploit another, completely different property of sound: the fact that sound changes the speed of light! In a rigid Fabry-Pérot laser interferometer consisting of two miniaturized mirrors, sound pressure changes the refractive index of the air. This alters the optical wavelength and the light transmission which consequently leads to the respective electrical signal. In contrast to conventional microphones, the Optical Microphone is the world's first microphone without any moving parts. No mechanically movable or physically deformable parts are involved. By consequence, the sensors exhibit a compelling frequency bandwidth, free from mechanical resonances. The sensor principle is highly sensitive. In fact, refractive index changes below 10-14 can be detected with this technology. This corresponds to pressure changes as small as 1 ?Pa.

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