Doppler ocean current sensorHigh precision measurement of flow velocity and direction based on acoustic Doppler effect.

　　Doppler ocean current sensorApplied to marine scientific research

Research on Ocean Circulation and Dynamic Processes

Application requirements: Long term monitoring of global or regional ocean circulation (such as Kuroshio Current, Gulf Stream) for changes in flow velocity and direction, and analysis of the impact of climate change on ocean dynamic processes.

Technical advantages:

High precision measurement: Flow velocity accuracy of ± 1mm/s, supporting long-term continuous observation of small flow velocities (such as 0.1cm/s).

Multi parameter synchronization: Integrated temperature and salinity sensors, supporting coupled analysis of thermohaline circulation and dynamic processes.

Self contained deployment: supports built-in batteries and data storage, suitable for unmanned platforms such as buoys and submersible markers.

Typical case:

Deploy Andra DCS4420 sensors in the Kuroshio Extension area, combined with satellite remote sensing data, to reveal the impact of mesoscale eddies on material transport.

Tide and internal wave observation

Application requirement: To study tidal dynamic processes, generation and propagation mechanisms of internal solitary waves, and provide validation data for ocean numerical models.

Technical advantages:

Wide range coverage: Flow velocity range of 0-10m/s, adapted to the dynamic changes of tidal currents (0-3m/s) and internal wave currents (0-5m/s).

High sampling rate: Supports sampling frequencies of 1Hz-10Hz to capture instantaneous velocity fluctuations of internal waves.