FlowQuest Acoustic Current Profilers



FlowQuest is a line of Acoustic Current Profilers manufactured by LinkQuest Inc
The FlowQuest current profilers are ideal for measuring currents and flows in oceans, harbors, lakes and rivers. With its capability for significantly longer range, standard deepwater depth rating and seamless integration with third-party sensors and LinkQuest acoustic modems, the FlowQuest system is not just a current profiler. It also serves as a focal point for your underwater deployments.
  • 75, 150, 300, 600 or 1000 kHz Operating Frequency
  • Range up to 900 meters
  • Accuracy up to 0.25% +/- 2.5 mm/s
  • Highly Robust Acoustic Doppler Technology
  • Significantly Longer Range When Compared Against Similar Products
  • Highly User Friendly And Cost Competitive
  • Standard Depth 800 Meters
  • Optional Depth 1500, 3000 or 6000 Meters
  • Bottom Tracking Option For Vessel-mounted Applications
  • Optional WaveQuest Directional Wave Spectrum Measurement Function
  • Optional Discharge Measurement Function
  • Data Fusion Function To Interface To Multiple Third Party Sensors
  • Optional Integrated LinkQuest High Speed Acoustic Modem
  • Optional Integrated Relocation Transponder
  • Low Power Consumption DSP Technology


FlowQuest Studio Windows Software
The FlowQuest Studio software is an integrated environment for FlowQuest configuration, real-time data display and off-line data analysis. The software is very user friendly and efficient, with abundant useful features. It supports current profiling, bottom tracking and wave measurement. The user can easily communicate with the FlowQuest system, configure the parameters, download data from the data logger, and monitor the FlowQuest deployment in real-time. It also provides tools for off-line analysis, calibration, diagnosis, and system reset. FlowQuest data are displayed as graphics and also can be exported to other formats.

Discharge Measurement Using FlowQuest Acoustic Current Profilers
For the discharge measurement application, the standard FlowQuest 600 or 1000 acoustic current profiler is steadily deployed on a moving vessel such as a catamaran, a small floating platform or a small boat with the transducer pointing downward. The profiler measures the water velocities, the ship's velocities, the depth and other related information required for discharge measurement by doing current ensemble and bottom tracking pings alternatively. Advanced algorithms are utilized to calculate the sectional discharge and the total discharge in real-time. The sectional discharge, total discharge, the ship's trace, the bottom depth and related velocities are displayed in the FlowQuest software. The FlowQuest Discharge Measurement software can also be used for user friendly off-line analysis. The user can select different measurement starting and ending points and different models to revise and optimize the discharge calculation results. With very fast ping rate, automatically adjusted cell size and no ambiguity error, the Discharge Measurement function in the FlowQuest profilers is capable of more accurately measuring both normal and unsteady (or tidally affected) flow. It is also dramatically faster than conventional discharge measurement systems and has improved accuracy.

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