Seafloor Platforms

Our seafloor platforms are chosen when a reliable deployment is required within extreme environments. Whether it is at coastal sites exposed to swell and sand drifts or within strong tidal streams over rocky seabeds you can be sure that you will get your valuable equipment and data back home.

Diodora is a low elevation, protected, stable and truncated pyramid mostly designed to mount up-looking acoustic Doppler profilers (ADP) within a gimbal.

Patella is a high elevation, stable and lattice pyramid mostly designed to mount down-looking short-range and high-resolution ADPs fixed at the top of the pyramid.

Both frames can also accommodate a high-resolution and short-range ADPs, Doppler velocimeters, acoustic or optical modems, CTDs, ARGOS or flash-light beacons, external battery packs, sediment traps, direct-reading or self-contained tilt sensors, etc.

We recommend whenever it is possible to avoid using divers to increase weather windows as well as to reduce costs of deployments and recovery. Our seafloor platforms are therefore designed with robust and redundant twin acoustic release pop-up buoy systems. They use low-cost and robust acoustic releases, standard trawl floats, cheap HDPE rope containers and strong Dyneema SK75 ropes. One recovery system failure is rare. By having two independent recovery systems the risk of failure becomes negligible. The acoustic releases have optional tilt indication to check your platform’s tilt is less than 15°, between 15° and 30° or greater than 30°.

The seafloor platforms are available in standard sizes depending on your transport or vessel constraints. They can be fully welded or in several parts to be bolted. They are made of stainless steel or aluminium. Finally, custom sizes and designs are available on request.


Product information sheet – Diodora and Patella