AWAC 2 - 1 MHz

Real-time current profiles and directional waves for shallow water

The AWAC 1 MHz 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 35 m maximum range for wave measurements and 4 Hz sampling of the surface elevation, the AWAC 1 MHz is the optimal tool for shallow current and wave measurements. The AWAC 2 design offers future-proof electronics, improved performance and easier instrument maintenance.

Nortek

Rud, NO

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Description

Highlights

Real-time current profiles to 30 m range
Real-time directional waves to 35 m range
Acoustic surface tracking (AST) with vertical beam
Can be used both with fixed frames and subsurface buoys

Usage

Online, real-time measurements of currents and waves
Design data for planning of new coastal structures
Site studies for offshore wind platforms
Coastal erosion studies
Monitoring of transient waves for channel wall protection

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Specifications

Physical Properties: Length [cm]

17.5

Operating temperature: min. [°C]

-4

Operating temperature: max. [°C]

40

Housing material

POM with titanium fasteners

General: Area of Application

Real-time current profiles and directional waves for shallow water

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

2024

Languages Supported

English

Operating properties: Sampling rate

1Hz or 2Hz

Max. depth rating [m]

300

Telemetry

Digital

Power supply and communication: Power supply (internal/external with specs)

DC: input 12-48V. DC maximum peak current: 1.5 A. Avg. power consumption: 15mW. sleep current: < 100 μA

Output interface {eg. rs232}

Ethernet, RS-232, RS-422

Hardware/software requirements: Dedicated software

Y

Compass sensor: Range

0 - 360 °

Resolution

2° for tilt <30° /0.01°

Current sensor: Range

±10 m/s horizontal, ±20 m/s upon request

Accuracy

±1% of measured value ±0.5 cm/s

Temperature sensor: Range

-4 to +40 °C

Accuracy

0.1 °C

Resolution

0.01°C

Pressure sensor: Range

0-100m (inquire for options)

Accuracy

0.5% of full scale (optional 0.1% of full scale)

Resolution

0.1% FS / Better than 0.002% of full scale