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Nortek AWAC - 400 kHz - Acoustic Wave and current profiler up to 100 meter depth

Real-time current profiles and directional waves for shallow water

The AWAC 400 kHz ADCP has become the standard reference technology in submerged wave-measurement applications. Thousands of these ADCPs have been deployed to capture the full wave spectrum, in combination with current profiles. With a 100 m maximum range for wave measurements and 1.5 Hz sampling of the surface elevation, the AWAC 400 kHz is the optimal tool for deeper-water current and wave measurements.

  • Nortek AWAC - 400 kHz - Acoustic Wave and current profiler up to 100 meter depth
Nortek
Vangkroken 2
1351 Rud
Norway
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Description

Highlights

  • Real-time current profiles and waves to 100 m range
  • Acoustic surface tracking (AST) with vertical beam
  • Can be used both with fixed frames and subsurface buoys

Applications

  • Online measurements of currents and waves
  • Design data for planning of new coastal structures
  • Site studies for offshore wind platforms
  • Coastal erosion studies
  • Measurement campaigns where the full wave spectrum is needed
  • Monitoring of transient waves for channel wall protection
  • Studies of tidal currents

For more information, download the technical specification (PDF).

 

Specifications

  • Area of Application
    Real-time current profiles and directional waves with up to 100 m range
  • Field of Use
    Online measurements of currents and waves, Design data for planning of new coastal structures, site studies for offshore wind platforms
  • Output parameters
    Real-time directional waves to 35m range
  • Direction wave or non-directional
    Directional
  • Year of initial development
    2001
  • Year of latest version
    2016
  • Languages Supported
    English
  • Type of wave recorder
    Radar
  • Dedicated software
    Y
  • Data provided / logged
    Pressure, one velocity along each beam, AST
  • Power supply (internal/external with specs)
    DC: input 9- 18V. DC maximum peak current: 3 A. Avg. power consumption: 0,65W. sleep current: < 100 μA
  • Output interface {eg. rs232}
    RS-232 or RS-422. software supports most commercially available USB– RS-232 converters
  • Weight in air [kg]
    6.1
  • Width [cm]
    21
  • Length [cm]
    17.5
  • Operating temperature: min. [°C]
    -4
  • Operating temperature: max. [°C]
    40
  • Housing material
    POM and polyurethane plastics with titanium fasteners
  • Weight in water [kg]
    2.9
  • Range
    0 to 10, 20, 30, 50, 100, 200 or 300 meter depth
  • Accuracy
    0.5% of full scale (optional 0.1% of full scale)
  • Resolution
    0.005% of full scale
  • Range
    -4 to +40 °C
  • Accuracy
    0.1 °C
  • Resolution
    0.01°C
  • Range
    0 - 360°
  • Resolution
    0.1° for tilt <15°
  • Range
    ±10 m/s horizontal, ±5 m/s along beam
  • Accuracy
    ±1% of measured value ±0.5 cm/s
  • Resolution
    0.001 m/s
  • Output data format
    NMEA, binary. Prolog provides same types also for processed wave and current data
  • Sampling rate
    Sampling rate velocity (output): 2Hz. sampling rate AST (output): 4 Hz. no. of samples per burst: 512, 1024 or 2048

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