Underwater

HDT’s expertise in robotics has enabled us to extend our reach to include applications for underwater work typically done by humans, as well as sensitive motion sensing and silent maneuvering capabilities.

  • HDT Adroit® manipulators work underwater. The Adroit-M version of HDT’s single arm is rated for operation in 150 m of sea water.
  • The Adroit-M’s underwater end effector can grasp and use almost any tool made for human divers allowing Remotely Operated Vehicles (ROVs) to efficiently perform tasks that have otherwise required divers
  • Working for the US Navy’s Office of Naval Research (ONR), HDT has developed a completely new type of underwater sensing, based on a very low-power electrical field that many fish use to find their prey
  • HDT’s “electrosense” detection system provides highly accurate short-range detection of objects in the water, on ship’s hulls, and even under sand, silt, and mud
  • The composition of the detected object can also be sensed, based on how it interacts with the weak electrical field
  • By using frequency hopping, the electrosense signal level is below the background noise in the ocean and is completely undetectable to anyone else
  • In a related project for ONR, HDT developed a completely new, bio-mimic form of propulsion based on a fish’s tail fin
  • HDT’s GhostBot has a rigid hull with an undulating body fin (emulating the Black Ghost Knifefish) enabling precise underwater maneuvering and propulsion