The DVL-A125 is the world’s smallest long range Doppler Velocity Log.
With an extremely wide operating altitude of 5 cm to 125 meter, the A125 is the “swiss army knife” of DVLs!
Offering a very high maximum velocity of 9 meter per second, the A125 is the ideal DVL not only for ROVs but also for USVs and fast AUVs.
Finally a DVL that does it all!
The A125 is designed with small and medium sized ROVs/AUVs/USVs in mind where it can easily be mounted without significantly affecting the vehicle.
While the A125 is the perfect fit for small and medium sized vehicles looking for professional navigation features, the combination of low cost and high performance makes it very attractive also for much larger vehicles.
Advantages by using DVL on your vehicle
- Accurate position hold for professional inspections and/or tooling interventions
- Accurate micro movements like “move 1 inch to the right”
- Travel over great distance and use “dead reckoning” to create the travelled path
- Find home even while being out of reach of acoustic positioning systems like Underwater GPS
- Accurate flight path which pairs very well with sonar imagery
|Device diameter||: 125 mm|
|Device height||: 30 mm|
|Device weight (air)||: 986 grams|
|Device weight (submerged)||: 730 grams|
|Depth rating||: 3000 meters|
|Materials||: Stainless steel 316 (housing)
: PEEK (transducer caps)
|Operating temperature||: -5 to 60 °C|
|ELECTRICAL / INTERFACE|
|Input voltage||: 10-30 V|
|Power consumption||: 0.25 A at 12V|
|Power-on current surge||: 1.25 A at 12V|
|Physical interface||: 8 wires (pwr/serial/Ethernet)
: 3 meter cable (PUR 7.8 mm diameter) with interface module
|Indicator||: Status LED (Power, Lock)|
|Communication||: UART 115200 baud serial 3,3V
|Protocols||: Water Linked API|
|ACOUSTIC / PERFORMANCE|
|Transducer frequency||: 420 kHz|
|Transducer setup||: 4-beam convex Janus array|
|Transducer beam angle||: 22.5 degrees|
|Ping rate||: 1-26 Hz (adaptive to altitude)|
|Sensor assist||: Integrated AHRS/IMU (Yost Labs TSS-NANO)|
|Min altitude||: 5 cm|
|Max altitude||: 125 meters
(Performance at altitudes > 110 meter is dependent
on seabed conditions, salinity levels etc.)
|Max velocity||: 9 m/s|
|Velocity resolution||: 0.1 mm/s|
|Long term accuracy||: ±1.01 % (Standard version)
: ±0.1 % (Performance version)
Downloads / Resources
|Document / File||Download||Link|
|3D STP file (dvl)|
|Pressure rating certificate|
|Certificate of origin|
|Export license declaration|
We have made a section dedicated to the DVL where you can read about how it works and other aspects.