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Nexus Lite

Nexus Lite is an Ultra Short Baseline (USBL) underwater positioning and tracking system centred on a multi-element, single transducer that transmits and receives acoustic signals to dynamic subsea targets from which range, bearing and depth informati

Applied Acoustics
Gapton Hall Road
NR31 ONB Great Yarmouth
United Kingdom of Great Britain & Northern Ireland
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Description

Nexus Lite is an Ultra Short Baseline (USBL) underwater positioning and tracking system centred on a multi-element, single transducer that transmits and receives acoustic signals to dynamic subsea targets from which range, bearing and depth information can be determined. It incorporates Sigma 1 Spread Spectrum technology to provide a secure acoustic link. By incorporating Sigma 1 technology the wide bandwidth transmissions reduce the system's susceptibility to interference. Designed for ease of installation in a vessel's operations room, the surface console has been mounted within a rugged 1U enclosure for connection to a laptop or tablet PC.

Specifications

  • Date of first release
    2017
  • Mounting
    Hull mounted & Portable
  • Retractable
    Y
  • Diameter [mm]
    100
  • Height [m]
    0.5
  • Min. external power [Voltage]
    100
  • Max. external power [Voltage]
    240
  • Max power consumption [W]
    110
  • Type of system
    USBL
  • Frequency {kHz}
    18-30
  • Spread spectrum technology
    Y
  • Min. operation range {m}
    1
  • Max. operation range {m}
    2000
  • Operation beam angle {deg}
    180
  • Angle accuracy (degr) @ 20 dB
    0.8
  • Focussed beam forming
    N
  • Number of active elements
    5
  • Number of transponder channels
    8
  • Multi user functionality
    N
  • LBL-functionality
    N
  • Horizontal accuracy (in % of the water depth)
    1
  • Vertical accuracy (in % of the water depth)
    1
  • Ray tracing
    N
  • Real-time integration of SV-profile
    Y
  • Motion sensors compatible to the system:
    Internal AHRS + external options
  • Compatible hardware
    Multiple
  • Compatible software
    Nexus Lite v3.2
  • Real-time access procedure
    Windows OS
  • Inertial interfacing
    N
  • Dimensions {mm}
    74 x 410
  • Dry weight {kg}
    3
  • Depth rating {m}
    1500
  • Additional functions
    Depth
  • Inside deployment pole available
    Y
  • Diam gate valve {mm}
    100
  • Outside deployment pole available
    Y
  • Recommended distance below keel {m}
    1
  • Distinguishable features
    Runs off end user Windows tablet or PC.

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