Discharge - ultrasonic Doppler FlowTracker

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Flowtracker


Contents

Parameter to be measured:

Flow velocity (, discharge)

Method:

2D/3D ultrasonic Doppler

Equipment:

  • sensor + display unit
  • adjustable wading rod

Advantages:

  • on-site discharge computation
  • powerful quality checking, configuration and data storage options
  • self-explaining menu system, well-labelled keys
  • velocity measurement with 2D or 3D components
  • convenient sensor height adjustment from above the water
  • comparatively light rods, all packed in single sturdy case
  • easy-to-use software with basis visualisation capabilities
  • standard AA-batteries

Disadvantages:

  • depth scale of fixed rod hard to read (no numbers)
  • scale of adjusting rod confusing and useless for everything but 1- and 2-point-verticals
  • high sensitivity to mud-clouds
  • sensor contact with the mud may produce very high velocity measurements
  • sensor and display-unit cannot be separated - impractical when handling the unit for data-retrieval
  • heavy and bulky transport case

What to watch out for:

  • sensor contact with bottom sediment, cloudy water, confusing scale, annoyed freshwater bats

Price:

  • ~ 11000 € (2008, Germany)

Links

Discharge - comparison of measurements (C2, Flowtracker, Flowsens, ADC, tracer, dipping rod)

Other related web sites:

Projects that used the above equipment: -


References

http://www.sontek.com/flowtracker.php

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