The Magazine for Underwater Professionals
Coda Octopus, UK, reports the receipt of a follow-on sub-contract award from the Applied Research Laboratory (ARL) at Penn State, USA, a tenured US Department of Defense-designated University Affiliated Research Center, as part of a Naval Sea Systems Command (NAVSEA) programme.
The award is for the development of a prototype real-time 3D head-up display solution for divers, coined the 3D HUD system. The system will feature both real-time 3D sonar imaging hardware and real-time 3D augmented visualisation software by Coda Octopus.
“Coda’s proprietary technology is the sonar industry gold standard, the world’s only technology that enables real-time visualisation of moving objects in the water column in zero visibility conditions and high-resolution volumetric mapping,” said the company.
The 3D HUD system will feed directly into the Divers Augmented Vision Display (DAVD), a head-up display permitting advanced visualisation while underwater at any depth, which was created at the US Naval Surface Warfare Center Panama City Division (NSWC PCD). The DAVD is a high-resolution, see-through, head-up display embedded directly inside the diving helmet.
“This new combined capability enabled by our premier 3D real-time sonar technology – 3D HUD system feeding DAVD – will significantly advance diving operations and missions and bring increased productivity gains and health and safety benefits to these subsea naval operations,” said Coda Octopus.
The 3D HUD system prototype is expected to be ready for NAVSEA testing in the second quarter of 2018.
Coda Octopus said this application of its real-time 3D sonar imaging will provide comprehensive underwater scene awareness and management information in real time, irrespective of low or zero visibility conditions. Further, the 3D subsea information will be delivered in real time to multiple parties involved in the operations, including divers in the water and supervisors on the surface.
“This represents a first for both the Navy and sonar industry,” said the company.
The Coda Octopus software will also permit a mixed reality three-dimensional view of the subsea world, delivering real-time diver location with head tracking, virtual real-time modelling and on-demand mission data delivery to the dive supervisor on the surface.
BIRNS, USA, has announced the addition of a new 1.25-millimetre optical ferrule for its BIRNS Millennium connector series – a high-performance, high-density, dry-mate connector range suitable for applications to six-kilometre water depth. The series can be used with moulded or oil-filled cables in straight or 90-degree configurations and is available in high and low voltage, coax, fibre optic and hybrids of electro-coax, electro-optical and electro-opto-mechanical formats.
“The 1.25-millimetre ferrule provides single-mode and multi-mode options with low insertion losses for subsea applications in extremely high density pin configurations, while affording superior new exclusive precision alignment capabilities,” said BIRNS. “The new ferrule is available in addition to the existing 2.5-millimetre ferrule offered in the series, with both made of ceramic zirconia.”
Eric Birns, BIRNS president and chief executive officer, added: “With the enormous increase in high-density connector hybrid configurations from both our military and commercial customers, we are happy to offer yet another high-performance option for including the maximum number of contacts in a miniature, deep-submergence connector.”
UK-based Ocean Scientific International Ltd (OSIL) has announced the release of a new sediment corer designed to be mounted to the skids of ROVs or AUVs.
“The self-contained system will allow sediment samples to be collected during routine ROV operations and can be daisy-chained together to allow multiple core assemblies to be installed as one system,” said the company. “The assemblies are powered and controlled by the customers own skid control unit and have been pressure tested for use in depths of up to 1200 metres, with deeper units currently in development.”
The design is based around the industry standard multiple (multi) corer, and each assembly recovers a 400-millimetre sample containing 300-millimetre sediment and 100-millimetre supernatant water.
“Disturbance of the sample is minimal as the core tubes seal after sampling to preserve the sediment/water interface, and the rate of penetration can be adjusted to suit environmental conditions,” said OSIL.
Each complete assembly weighs approximately 12 kilograms in air and exerts a downward penetration force of up to roughly 15 kilograms. On recovery the core tubes can be recovered and replaced, and can either be sampled directly, or frozen and sampled subsequently.
Dutch multinational company AkzoNobel reports it is to develop a “revolutionary” fouling prevention technology that uses ultraviolet light-emitting diodes (UV-LED).
The pioneering solution – which uses underlying technology developed by Royal Philips, the Netherlands – will be applied to underwater surfaces to eliminate fouling growth, according to a spokesman.
“By teaming up AkzoNobel’s cutting-edge surface protection and adhesion know-how with Royal Philips’ unrivalled capabilities and intellectual property in UV-LED lighting and electronics, the two companies are aiming to develop an economically viable solution for underwater fouling prevention,” he said.
Teledyne Gavia, Iceland, has released a new navigation module for the Gavia AUV that incorporates the new iXblue, France, Phins Compact C3 with a Teledyne RDI, USA, 1200kHz Workhorse.
The Gavia AUV can be utilised in various applications, including geophysical surveys, cable and pipeline surveys, environmental surveys and under ice surveys, as well as mine countermeasures, rapid environmental assessment and intelligence, surveillance and reconnaissance surveys.
“Equipping the Gavia with the Phins Compact C3 and TRDI‘s Workhorse DVL offers a 0.3 per cent CEP50 distance travelled navigation accuracy in a very compact module that lowers the weight and size of the vehicle from previous navigation options,” said a spokesman. “The Phins Compact C3 is the second inertial navigation system from iXblue that Teledyne Gavia has integrated into the Gavia AUV. Teledyne Gavia has had great success with the iXblue C5, so the company is excited to extend the portfolio of iXblue technology available on the Offshore Surveyor with the introduction of the Phins Compact C3.”
Hydroid, the USA-based manufacturer of marine robotics, has announced the release of the REMUS M3V compact, one-man portable AUV.
According to Hydroid, the new micro AUV supports numerous applications including search and survey, intelligence, surveillance and reconnaissance (ISR), marine research and multi-vehicle missions.
“The REMUS M3V can dive up to 300 metres in depth. It is a true A-size vehicle with no fins or appendages outside the A-size envelope and can be used for multi-domain deployments,” the firm said.