UB-Lab 2C - The velocity vector profiler
The UB-Lab 2C profiler measures accurate quasi-instantaneous co-located two (2C) components velocity profiles in the laboratory.
- High spatial and temporal resolution
- two components (2C) velocity profiles
- Web interface
The compact and splash-proof (IP65) enclosure of the UB-Lab 2C is adapted to harsh environments. This scientific instrument can be used within a laboratory. It breaks new ground by offering the user new capabilities in the fields of turbulence study.
The device is configured through a dynamic web interface and integrate an internal logger (3Go) which allows the storage of a large amount of data, enabling days or months of monitoring (depending on configuration).
Ethernet communication goes through RJ45 cable. The device can behave like a DHCP server when connected directly to the computer, or it can be connected to the network and behave like a DHCP client. Depending on the network configuration, connection to the device through WiFi is possible.
The UB-Lab 2C can be equipped with 1 emitting transducer and 2 couples of receiving transducers. The multi-bistatic technique provides an instantaneous two component (2C) velocity vector measurement along a single beam (1D profile) at a high spatial and temporal resolution. This technique is also known as ADVP (Acoustic Doppler Velocity Profiler).
The emitter and a pair of receivers are provided with the device, as well as the holder to ensure an optimal installation.
|Measurement Performances||UB-Lab 2C|
5 to 500 mm at 1MHz
|Number of cells||2 to 100|
|Cell size||1.4 to 20 mm|
see Nyquist conditions.
Example of average velocity ranges for turbulence intensities of 8%:
|Velocity accuracy||0.2 to 1%|
|Velocity resolution||0.1 ppm (floating point representation with 7 significant digits)|
|Sampling rates||up to 100 Hz *|
|Signal Processing||Coherent Doppler with phase coding|
|Number of configurations||5|
|Raw acoustic signal||no|
|Trigger IN/OUT||1 BNC connector|
|Temperature||1 BNC connector for 2 wires PT100 probe|
|Number of transducer connectors||5 (1 in emission and 1 or 2 pairs reception)|
|Type of transducer connectors||BNC|
|Frequency range||0.8 to 1.2 MHz|
|Beam width||around 3° half angle depending on the emitting frequency|
|Dimensions||5.5 x 11.3 x 38.5 cm|
|Cable||10 m typical (up to 50 m upon request)|
|Communication||HTTP and TCP-IP protocols through Ethernet|
|Internal data logger||3 Go (more than 20 000 profiles)|
|File format||ASCII CSV (compatible with Excel, Matlab …) and binary for raw data|
|Velocity||Velocity profile data (relative to acoustic beam directions) per beam and cell|
|Echo||Backscattered echo RMS amplitude per beam and cell|
|Data Quality||Profile data quality indicator per beam and cell|
|Input||110-230V AC, 48V POE|
|Consumption||Maximum 12 VA|
UB-Lab 2C - Sheet-flow
This video shows an example of setup for measurements in a sheet-flow condition in an open-channel flume with the UB-Lab 2C from UBERTONE.
In this paper, new data set of co-located 2C velocity and sediment concentration time-resolved measurements under steady uniform turbulent rough clear water and sheet-flow, performed with an Acoustic Concentration and Velocity Profiler (ACVP) and a prototype for a commercial ADVP, the UB-Lab 2C, are presented ... read more
A big step has been taken for ultrasonic instrumentation thanks to the ANR Astrid-ASMA project M.E.S.U.R.E (Métrologie mES hydroacoUstiques opéRationnElles - Operational hydroacoustic SSC metrology)! First results on the measurement campaign in the laboratory facility of the LEGI ... read more
UB-Lab 2C - userfriendly GUI
This video explains geometrical GUI setup for measurements with the UB-Lab 2C from UBERTONE.
You will find here how to install the UB-Lab from UBERTONE. The UB-Lab communication and powering go through a POE cable and supply.
Overall presentation - UB-Lab User Interface
You will find here how to start the graphical user interface of the UB-Lab from UBERTONE. It is an embedded web interface. And you will get an overview of this interface.