NuvoSonic
Encyclopedia
It has swimmer detection, underwater hailing by voice, and non-lethal deterrent.

It uses a sonar system called Parametric Port Security Sonar System (P2S3), which uses a narrow-beam sound technology called Parametric Array
Parametric array
The parametric array is a nonlinear transduction mechanism that generates narrow, nearly sidelobe free beams of low frequency sound, through the mixing and interaction of high frequency sound waves, effectively overcoming the diffraction limit associated with linear acoustics...

 Sonic Echo Ranging (PASER, which is a tradename).

It claims to be able to detect divers at distances up to 2 kilometers = 1.24 miles.

NuvoSonic has developed several products:-
  • To secure a large area around objects surrounded by water.
  • Sonar barriers to monitor choke points.http://nuvosonic.com/Images/barrier-w-diver.jpg
  • Distributed acoustic barrier systems.
  • Smaller sensors for scanning the underside of tanker
    Tanker (ship)
    A tanker is a ship designed to transport liquids in bulk. Major types of tankship include the oil tanker, the chemical tanker, and the liquefied natural gas carrier.-Background:...

    s, cruise ship
    Cruise ship
    A cruise ship or cruise liner is a passenger ship used for pleasure voyages, where the voyage itself and the ship's amenities are part of the experience, as well as the different destinations along the way...

    s, and other surface vessels.
  • Small sensors that can be carried by a diver
    Underwater diving
    Underwater diving is the practice of going underwater, either with breathing apparatus or by breath-holding .Recreational diving is a popular activity...

     or by an Autonomous Underwater Vehicle
    Autonomous Underwater Vehicle
    An autonomous underwater vehicle is a robot which travels underwater without requiring input from an operator. AUVs constitute part of a larger group of undersea systems known as unmanned underwater vehicles, a classification that includes non-autonomous remotely operated underwater vehicles...

    (AUV), e.g. by a patrol diver looking for submerged unauthorized divers.

External links

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