Description
Key features
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Datasheet
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Description
The Water Linked A50 is the world’s smallest Doppler Velocity Log (DVL). By utilising the latest technology WaterLinked has been able to reduce the size and cost of the DVL, while delivering a level of performance previously not possible in a product so small.
Thanks to the size and weight of the A50, the smallest ROVs and AUVs can now benefit from increased navigation and control. This allows these small vehicles operating in water depths down to 600m to perform tasks that would have previously required a larger and more expensive vehicle. Although a clear benefit for small vehicles, larger vehicles requiring high-accuracy navigation features also benefit from the size, weight, and cost benefits of fitting this high-accuracy DVL.
While typically integrated fully to the ROV or AUV for enhanced control, the integrated Attitude and Heading Reference System (AHRS) within the A50 allows the DVL to be used for dead reckoning positioning. This feature allows the A50 to generate an accurate track plot of the vehicles movements without the need to fully integrate with the vehicle control system.
Included contents
1x DVL A50 (with selected options)
Specifications
| Mechanical | |
| Device diameter | 66 mm |
| Device height | 25 mm |
| Device weight (air) | 170 grams |
| Device weight (submerged) | 105 grams |
| Depth rating | 300 or 600 meters |
| Materials | PEEK (housing) Stainless steel 316 (back plate) |
| Operating temperature | -5 to 60 °C |
| Electrical / Interface | |
| Input voltage | 10-30 V |
| Power consumption | 4 W (average) |
| Power-on current surge | 35 W (maximum) |
| Physical interface | 8 wires (pwr/serial/Ethernet) 3 meter cable (PUR 6.7 mm diameter) with interface module |
| Indicator | Status LED (Power, Lock) |
| Communication | UART 115200 baud serial 3,3V Ethernet |
| Protocols | Water Linked API and PD6 |
| Acoustic / Performance | |
| Transducer frequency | 1 MHz |
| Transducer setup | 4-beam convex Janus array |
| Transducer beam angle | 22.5 degrees |
| Ping rate | 2-15 Hz (adaptive to altitude) |
| Sensor assist | Integrated AHRS/IMU (Yost Labs TSS-NANO) |
| Min altitude | 5 cm |
| Max altitude | 50 meters (Altitude > 35 meter is dependent on seabed conditions, salinity levels etc.) |
| Max velocity | 3.75 m/s |
| Velocity resolution | 0.1 mm/s |
| Long term accuracy | ±1.01 % (Standard version) ±0.1 % (Performance version) |
| Approvals | |
| CE | |
| RoHS compliant |
