Difference between revisions of "Discharge - ultrasonic Doppler FlowTracker"
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| − | |[[Image:flowtracker.JPG|right|220px| | + | |[[Image:flowtracker.JPG|right|220px|Flowtracker]] |
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* comparatively light rods, all packed in single sturdy case | * comparatively light rods, all packed in single sturdy case | ||
* easy-to-use software with basis visualisation capabilities | * easy-to-use software with basis visualisation capabilities | ||
| + | * standard AA-batteries | ||
==Disadvantages:== | ==Disadvantages:== | ||
* depth scale of fixed rod hard to read (no numbers) | * depth scale of fixed rod hard to read (no numbers) | ||
| − | * scale of adjusting rod confusing and useless for everything but 1-point-verticals | + | * scale of adjusting rod confusing and useless for everything but 1- and 2-point-verticals |
* high sensitivity to mud-clouds | * high sensitivity to mud-clouds | ||
* sensor contact with the mud may produce very high velocity measurements | * sensor contact with the mud may produce very high velocity measurements | ||
| Line 35: | Line 36: | ||
==Price:== | ==Price:== | ||
| − | * ~ 11000 € (2008) | + | * ~ 11000 € (2008, Germany) |
==Links== | ==Links== | ||
Latest revision as of 11:41, 19 September 2016
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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: -