DVL | Pathfinder

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Underwater ROV Add-Ons

Super stabilize your REVOLUTION ROV with a Doppler Velocity Log. Combined with onboard sensors, it is able to provide more capability to fight current, hold station and hold and measure an altitude from the seafloor.


Doppler Velocity Log for Stabilization and Autonomy on your REVOLUTION ROV

  • 0.2 – 89 M Altitude
  • Precise USBL Position
  • Station Keeping
  • Better Navigation in Current
  • Auto Altitude Holding Mode

The DVL mounts on the bottom of the REVOLUTION and sends four acoustic beams on angles downward. Reflections then calculate the altitude (depth from bottom) and provide an estimate of the speed and direction of movement.

Combined with Deep Trekker BRIDGE sensor technology, the DVL provides more accurate and precise positioning and station holding – even in current.


DVL for Search and Recovery Missions

During a search and recovery mission, the DVL will help maintain an optimal altitude for the imaging sonar, such as 15 M above with the sonar on a 15 degree angle downward.

Position/Station Holding with DVL

A DVL also is used to help hold position, say when performing an inspection and wanting to hold against current, or when using a manipulator or laser scanner where it is easier to be dead steady.

Automatic Altitude Hold

Use a DVL on the ROV to help stay on course in current, maintain an altitude above the sea floor. This is important for benthic surveys to get a clear picture without crashing into the bottom and stirring up sediment, making the survey more difficult.



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