Copenhagen Subsea A/S is a newly created company with the purpose of bringing a range of innovative products to the subsea industry. The products are based on many years of experience with building products for the demanding subsea industry.
The first product series presented by Copenhagen Subsea is the rim driven thruster. Due to its simplicity, the rim driven thruster has for years been seen as the ideal thruster concept, but it has proved to be difficult to implement. Several attempts of implementing the rim driven thruster concept has failed over the years, but due to technological advances in materials science and production techniques, Copenhagen Subsea A/S has succeeded in implementing the concept resulting in an ultra-reliable thruster with unique features.
Due to the extreme harsh environment to which a subsea thruster is exposed — the realization of the rim driven concept has involved the utilization of materials with very specific characteristics. The development team behind the thruster has many years of experience with subsea equipment but had to look at other industries in order to find the right combinations of materials and production techniques, which could give the right compromise between reliability and performance required in the subsea industry.
Today one of the limiting factors in the utilization of ROV and AUV is the reliability of the thrusters. The thrusters are equally critical to the ROV operation as the rest of the sub-components — but due to the complexity of the thruster coming from moving parts; it is harder to achieve the same level of reliability as can be achieved in the non-moving parts of the system. The reliability of thrusters used in the ROV industry today is also a result of the small batch sizes in which they are produced. Copenhagen Subsea has successfully developed a series of industrialized thrusters with a significantly higher level of reliability.
• Low Acoustic Noise Signature:
Due to the fact that the rim driven propeller has a low tip speed of the propeller blades the noise emission from the propeller is significant lower than a normal propeller. Beside the propeller, the motor has no gears or other mechanical moving parts.
The low number of components in the thruster means that the reliability of the thruster is high.
The thrusters are responsive, powerful and easy to integrate and will provide vehicles with a unique combination of silent power and high maneuverability.
The thruster is easy to integrate the thrusters can be orderen in two versions either as a stand alone thruster for easy integration or in the compact form where the thruster can be closely integrated into the vehicle
A unique feature or the rim driven thruster is the symmetrical construction — which means that there is no preferred front or back — the thruster will deliver the same thrust going forward as it will when going backwards
There is no oil or other fluid inside the thruster, which can leak and pollute the surroundings.
The hub-less propeller is open in the middle, which gives the advantage that seaweed and pieces of rope can pass right through the thruster with a low risk of entanglement.
Since 2005, Teledyne Marine has grown in size and scope, adding technology and capabilities through organic growth and acquisition. Now twenty three brands strong, Teledyne Marine is recognized as a preeminent leader in marine technology, delivering a vast spectrum of product solutions and technologies to resolve challenges in some of the most demanding scenarios and environments imaginable.
Do you remember navigating with a street atlas? What a difference GPS makes. And now it seems every other new gadget includes a GPS chip for supplementary input. Similarly, better navigation tools optimized operations that use unmanned underwater vehicles (UUVs). Plus better navigation permitted expanded capabilities and greater cost-effectiveness. Together these advantages delivered a major gain for users of tethered and untethered UUVs. These are Remotely Operated Vehicles (ROVs) and Autonomous Underwater Vehicles (AUVs).
Micro Electro-Mechanical System (MEMS) technology is at the heart of Teledyne CDL’s extensive range of motion sensors that includes a variety of specifications, accuracies and external aiding capabilities. Also available is a complete range of fibre optic gyro (FOG) and ring laser gyro (RLG) gyrocompasses, built for marine vehicle navigation. This wide range of commercially available products is mainly for use in subsea marine and in particular, remotely operated vehicles (ROVs) and autonomous underwater vehicles (AUVs). CDL products are also suitable for subsea gliders, offering combined motion and navigation requirements for all subsea vehicles.
Over the last few months, VideoRay LLC has rolled out two new additions to their product line – the VideoRay Voyager, an economy ROV system, and a brand new line of customized ROV systems called the Mission Specialist Series.
Autonomous, tethered, and towed vehicles are doing important work in defense and security, oceanographic research, offshore and onshore energy, and water resource markets. In fact, unmanned underwater vehicles have become an essential tool for a variety of tasks across all these markets, which is a testament to the evolution of robotics technology. Underwater unmanned vehicles are doing work that is impossible, expensive, or clearly too dangerous to humans.
If you look closely at any U.S. coastal nautical chart, you’ll likely find that the areas closest to the shore, shoals, and rocks do not have updated depth measurements. In many areas, safety concerns prohibit the use of NOAA ships or launches to survey shallow depths. In many areas, the water is too murky to be mapped with the airborne lidar systems used in clear waters. Now, however, charting those shallow areas is about to get safer, thanks to recent purchases of small, commercial off-the-shelf, unmanned survey vessels.