System Operation Manual
SAT-DN-00434, Rev. B
LOBO
2017-05-16
Page 23 of 86
Copyright
2017 Sea-Bird Scientific. All rights reserved.
Normally, Sea-Bird Scientific will provide an ICD or other documentation describing the as-shipped
configuration of the Continental. The ICD includes a procedure for reconfiguration of the sensor if required.
It is expected that the end-user will change the configuration to match the actual operating environment.
Specifically, the number of measurement cells, the cell size, and the profile interval (essentially averaging
duration) are all expected to change. Note that if the number of cells is modified, the size of the data frame
will change and the STOR-X configuration will have to be adjusted accordingly.
4.2.2
Aquadopp Profiler
The Aquadopp Profiler is a sensor manufactured by Nortek AS, used for water current profiling. As with the
Continental profiler, the Aquadopp uses the Doppler Effect to measure water current velocity by
transmitting short pulses of sound, listening to their echo and measuring the change in frequency of the
echo. The Aquadopp is available in several configurations, depending on the deployment conditions and
desired measurements. For example, the Aquadopp normally used on the RiverLOBO platform is a 2 MHz
right-angle model intended for shallow water applications. The Aquadopp can be seen mounted in
RiverLOBO below in Figure 9, while Table 2 provides a summary of specifications. Please refer to the
manufacturer’s documentation for complete specifications.
Figure 9: Aquadopp mounted in RiverLOBO
Table 2: Example Aquadopp Specifications
Manufacturer
Nortek AS
Model
Aquadopp
Input Voltage
9
–
16 Vdc
Transmit Power
0.3
–
20 W
Operating Power
0.2
–
1.5 W + Transmit Power
Operating Temperature
-5°C to +35°C
Acoustic Frequency
2 MHz
Maximum Profiling Range
4
–
10 m
Cell Size
0.1
–
2 m
Number of Cells
1
–
128
Velocity range
±10 m/s
Accuracy
1% of measured value ±0.5 cm/
Max. Sampling Rate
1 Hz
Ancillary sensors
Temperature, compass, tilt, pressure
Serial Interface
RS-232 at 9600 bps (configurable)
Dimensions (approx)
24.7” long x 2.95” diameter
Aquadopp
Mounting
Brackets (x2)
