Aperçu
The Fusion DVL1000 is a sensor package that has all the necessary sensors and data products to aid in subsea navigation and vehicle control. This includes estimates of distance from the surface and bottom, attitude, heading and velocity.
- Currents
- Bottom track
- Altimeter
Points forts
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Small size
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Complete sensor suite
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Proven performance
Utilisation
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Small ROV
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Micro AUV
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Coastal USV
Integration
Unlike typical DVLs, the 300m rated Nucleus1000 is equipped with a pre-calibrated and pre-synchronized AHRS, temperature and pressure sensors, bringing users closer to true navigation while greatly reducing integration work. For those requiring a full positioning solution, the Nucleus can be provided with an optional INS firmware feature.
Reliability
The Nucleus1000 provides many of the features of a Nortek DVL, including water track in case of bottom track loss, rigorous testing in the demanding conditions of the Oslo fjord, and multiple data quality checks, all in a compact package.
Results
Integration of a guidance and navigation system on small vehicles becomes achievable, effective, and affordable with the Nucleus1000, enabling those vehicles to perform longer and more efficient missions. The Nucleus1000 software provides visualization of outputs and sense-checks of sensors, including a 3D visualization of the sensor’s AHRS.
Maximum altitude |
50 m |
Minimum altitude |
10 cm |
Long-term accuracy |
>1% (license-free), <0.3% (export-controlled) |
Velocity resolution |
0.01 mm/s |
Single ping standard deviation |
0.5 cm/s |
Maximum ping rate |
8 Hz 1) |
1) Maximum ping rate is range dependent |
Minimum accurary |
0.5% of measured value / +-0.5 cm/s |
Minimum range |
2.0 m |
Minimum accuracy |
0.5% of measured value / +-0.5 cm/s |
Velocity resolution |
0.1 cm/s |
Interval |
User specified Nth ping |
Maximum range |
30 m |
Blanking |
0.1 m |
Cell size |
0.2-2.0 m |
Max # cells |
150 |
Range |
50 m |
Accuracy |
1% of measured value |
Resolution |
1 cm |
Position accuracy of distance travelled |
2%2) |
Output rate |
Configurable |
2) Nominal position error, given as % of Distance Travelled. Value given is a reflection of a given set of operational conditions. Note that deviations from this specification can be expected in line with varying environmental conditions and integration parameters. INS functionality currently only available as export controlled |
Pitch and roll accuracy |
0.35 deg |
Heading accuracy* |
0.5 deg |
Output rate |
Configurable |
|
Pressure accuracy |
0.3% FS (precision better than 0.003% of full scale per sample) |
Temperature |
-4° to +40 °C ± 0.1 °C |
Range |
800 μT |
Repeatability over ±200μT |
20 nT |
Noise |
50 nT |
Sampling |
75 Hz |
Range |
40 g |
Bias - repeatability |
6 mg |
Velocity random walk |
0.039 m/sec/√hr |
Bias instability |
135e-6 m/sec² |
Scale factor stability |
0.10 % |
Sampling rate |
100 Hz |
Range |
2000 deg/sec |
Bias - repeatability |
1.4 deg/sec |
Angular random walk |
0.3 deg/√hr |
Bias instability |
8 deg/h |
Linear acceleration effect |
1.02x10-3(deg/sec)/(m/sec²) |
Vibration rectification error |
5.6x10-6(deg/sec)/(m/sec²)² |
Sampling rate |
100 Hz |
Operating temperature |
-4 to +40 °C |
Storage temperature |
-20 to +60 °C |
Depth rating |
300 m |
Height |
42 mm |
Diameter |
90 mm |
Weight in air |
535 g |
Weight in water |
295 g |
Voltage range |
10-28 Volts |
Average power |
< 4 W |
Maximum peak power |
35 W |
Serial |
RS-422 / RS-232 |
Ethernet |
10/100 Mbits Auto MDI-X.TCP/IP, UDP/IP. Fixed IP /mDNS/DHCP client /Auto IP address assignment. (Multiple simultaneous data format transmission possible). Data formats Nortek proprietary. |
Frequency of operation |
1 MHz |
Beam width |
3.4° |
Vertical beam angle |
20 deg |
RS422/Ethernet
RS232/Ethernet