Sample 3D velocity at up to 200 Hz for use in hydraulic models and laboratory flumes


  • Hydraulic models and flumes
  • Inexpensive alternative to laser Doppler velocimeter
  • 200 Hz maximum sampling rate


  • The Vectrino is a high-resolution acoustic velocimeter used to measure 3D water velocity fluctuations within a very small sampling volume and at sample rates of up to 200 Hz. It can be applied in a variety of environments, from hydraulic labs – where it is regarded as standard equipment – to the ocean. It is ideal for near-boundary flow measurements or to capture any highly dynamic phenomena in a hydraulic tank.


  • 3D flow measurements in laboratory flumes
  • Flow measurements near boundaries and in areas that are difficult to access
  • Flow measurements in physical models in hydraulic laboratories
  • Measurements of laboratory flume bottom changes as a function of time
  • Water velocity measurements

    Maximum profiling range N/A
    Distance from probe 0.05 m, 0.1 m (field probe)
    Sampling volume diameter 6 mm
    Sampling volume height (user-selectable) 3-15 mm
    Cell size N/A
    Velocity range* ±0.03, 0.1, 0.3, 1, 2.5, 4 m/s (software-selectable)
    Adaptive ping interval N/A
    Accuracy ±0.5% of measured value ±1 mm/s
    Velocity precision N/A
    Sampling rate (output) 1-25 Hz (Std firmware),1-200 Hz (Plus firmware)
    Internal sampling rate N/A
    * The velocity range is not the same in the horizontal and vertical direction. Please refer to the configuration software.
  • Sensors

    Temperature: Thermistor embedded in probe
    Temp. range -4 to +32 °C
    Temp. accuracy/resolution 1 °C/0.1 °C
    Temp. time response 5 min
    Compass: N/A
    Accuracy/resolution N/A
    Tilt: N/A
    Accuracy/resolution N/A
    Maximum tilt N/A
    Up or Down N/A
    Pressure: N/A
    Standard range N/A
    Accuracy/precision N/A
  • Power

    DC input 12-48 V DC
    Maximum peak current 2.5 A at 12 V DC (user-selectable)
    Max. consumption 1.5 W at 200 Hz
    Typical consumption, 4 Hz N/A
    Sleep consumption N/A
    Transmit power N/A