DensiTune® Silt Density Probe:
The DensiTune® Silt Density Probe is an accurate, easy to operate system to determine the internal density of liquid silt layers. The measurement system is based on the “tuning fork” principles.
One of the legs of the fork vibrates with a specific frequency, the other leg responds with a frequency which depends on the density of the medium in which the DensiTune® is inserted.
The system measures vertical density profiles in liquid silt layers while lowered.

The DensiTune® can be used to:

• Determine the nautical depth in navigation
channels.
• Determine density of silt layers in dredge
/dump areas.
• Accurate monitoring of siltation in ports,
marine traffic areas and waters monitored
and controlled by water authorities.

The DensiTune® can be operated from a vessel to carry out point measurements. Stationary installations for environmental monitoring are possible as well. Density profiles from the DensiTune® can be imported into our SILAS® software, to calculate the exact density layers for your entire
survey area.

References:
• Mumbai Port Trust, India
• Maritieme Autoriteit Suriname, Suriname
• Shanghai Dredging, China
• Tianjing Survey & Design Institute, China
• Port of Bristol, UK
• US Army Corps of Engineers

Silt Density Probe

Software:

DensCal - Calibration
Prior to surveying in a new area, the DensiTune® has to be calibrated with a locally obtained silt sample. DensCal converts calibration values to a calibration file, which is used by the software during the measurements and post-processing.

DensLog - Data Acquisition
This module is used during the actual measurements with the DensiTune®. The module converts raw data into representative parameters, which are displayed in graphs and tables. Also, this module takes care of data collection, computer interfacing and various print options.

DensEdit - Data Processing

Density measurement data is processed with this module. All necessary functions are available to edit data rapidly. Density versus depth profiles can be generated for presentation purposes.

DensExport - Data Exporting
Export of data to DTM or CAD.
Specifications:
Accuracy <1% of measured density
Range 1000-1800 gr./ltr.
Stability < ±0,0005 gr./ltr./year
Temperature range 0¥ tot +60¥ C
Max. Depth 200 m
Viscosity range 0-10000 cP
Measurement update rate 7Hz per second
Power supply 24 - 27 V DC, 50 mA
Dimensions (max) 650 mm x 150 mm diameter
Housing Stainless Steel
Weight (dry) 25 kg.
Accuracy Pressure sensor <0.15% of measured depth
Angle measurement Two single axis inclinometers