General Ocean News

Sonardyne revolutionises small marine robotics navigation with launch of SPRINT-Nav U

World's smallest hybrid acoustic-inertial navigator packs powerful performance into ultra-compact form factor

Sonardyne International Ltd is proud to announce the launch of SPRINT-Nav U, the world's smallest hybrid acoustic-inertial navigator designed specifically for compact marine robotic platforms.

This groundbreaking technology delivers the proven performance of Sonardyne's industry-leading SPRINT-Nav family in a package measuring just 135 mm tall by 114 mm in diameter and weighing only 600 grams in water.

SPRINT-Nav U represents a significant advancement for operators of small ROVs, AUVs, towfish, and USVs, who can now access survey-grade navigation capabilities previously available only to larger platforms. The system combines four critical instruments—AHRS, DVL, INS, and pressure sensor—into a single unit with one connector and one cable, dramatically simplifying integration while optimising size, weight, and power consumption.

"SPRINT-Nav U transforms what's possible for small robotic platforms. Operators can now conduct complex inspections and surveys around offshore structures, ports, and harbours with exceptional accuracy and reliability, without the need for large-scale vessel deployments." Aidan Thorn, Business Development Manager – Marine Robotics, Sonardyne.

Key features and benefits

• Ultra-compact design: Measuring 135 mm x114 mm and weighing only 0.6 kg in water (1.98 kg in air), SPRINT-Nav U fits into spaces traditionally occupied by just a DVL
• True north seeking: Maintains accurate heading even in ferrous environments where MEMS-based navigation systems struggle
• Survey-grade performance: Delivers 0.1% error for distance travelled during typical surveys, with heading accuracy of 0.15°
• Extended altitude range: 500 kHz DVL maintains bottom lock at up to 100 m altitude
• Rapid deployment: Aligns in just 5 minutes with DVL bottom lock
• Easy operation: Familiar web user interface shared with SPRINT-Nav Mini, with outputs compatible with third-party software

Game-changing capabilities for offshore energy
SPRINT-Nav U is particularly valuable for offshore wind operations, where its compact FOG-based IMU provides continuous, high-accuracy position, orientation, and velocity data even when operating in and around steel structures. This capability enables operators to conduct thorough inspections of wind turbine foundations, cables, and other subsea infrastructure without the interference issues common to magnetic-based systems.

"The ability to maintain accurate navigation in and around ferrous structures is a game-changer for operations such as offshore wind farm monitoring and maintenance. SPRINT-Nav U ensures operators can collect consistent, high-quality data near steel components where other systems would fail." John Houlder, Senior Product Manager, Sonardyne.

by AHayward

SBG Systems unveils the world's First MEMS-based Gyrocompassing IMU at Ocean Business 2025

SBG Systems and Inertial Navigation Systems (INS), is proud to introduce the world’s first MEMS-based North seeking IMU, capable of operating without GNSS aiding—a breakthrough in MEMS technology. This leap forward paves the way for future products, including AHRS and INS solutions, to further expand the possibilities of MEMS-based navigation.

This innovation marks a major milestone in inertial navigation by bringing the benefits of MEMS sensors to the world of high-performance navigation and orientation.

Unprecedented Performance & Innovation

This MEMS-based IMU provides unparalleled precision, achieving a heading accuracy better than 1° secant latitude without GNSS aiding, and an INS heading accuracy better than 0.01° when combined with SBG Systems’ state-of-the-art navigation and orientation algorithms.
Furthermore, this is a true MEMS-based gyrocompass with no moving parts, that doesn’t rely on carouseling or May-tagging, ensuring durability and reliability in all environments.

Key benefits of SBG Systems’ MEMS-based Gyrocompassing IMU include:

• Unmatched SWaP (Size, Weight, and Power) optimization: miniature form factor (52 x 52 x 36 mm, <150g) with low power consumption (2W), making it the most compact and efficient solution in its category.
• Volume ready: designed for high-volume production, enabling broad adoption across industries and competitive pricing.
• Robustness: no moving parts, ensuring long-term reliability even in the most demanding conditions.
• ITAR-Free – For unrestricted global deployment.

Revolutionary Gyrocompass Alignment Algorithms

SBG Systems has developed cutting-edge and patent pending algorithms to provide ultra-fast gyrocompass and INS alignment in all conditions:

• Pure north-finding algorithm: capable of rapid initialization in both static and dynamic conditions down to one minute.
• Advanced GNSS/INS algorithm: takes full advantage of gyroscope performance, to provide exceptional single-antenna heading accuracy even in non-dynamic scenarios.
“With this breakthrough, we are pushing the boundaries of MEMS technology. This IMU lays the foundation for a new generation of compact, cost-effective, and high-accuracy navigation solutions for marine, autonomous systems, and georeferencing applications.” said Thibault Bonnevie, CEO of SBG Systems.

Target Markets

• Subsea applications: ideal for ROVs (Remotely Operated Vehicles) and AUVs (Autonomous Underwater Vehicles) that require precise navigation in extreme environments.
• Geospatial & marine surveying: enables high-performance single-antenna marine surveys with unparalleled accuracy, making it the perfect choice for hydrographic, dredging, and offshore operations.

by AHayward

Exail secures first sale of Gaps M3 USBL system to major Asian offshore construction group

Exail has secured its first sale of the Gaps M3 compact USBL (Ultra-Short Baseline) positioning system to a major offshore construction group in Asia. The system will be deployed for a subsea cable laying project, providing precise underwater positioning in a dynamic coastal environment.

The Gaps M3 was specifically selected for its ability to deliver high-precision subsea tracking while remaining cost-effective. Integrated with a vessel’s existing attitude and heading reference system, the Gaps M3 will provide the same accuracy as Exail’s high-end Gaps USBL models, offering an ideal solution for operations that require reliable subsea navigation at a lower cost.

“This first sale of the Gaps M3 reflects the growing demand for compact and affordable subsea positioning systems that maintain high performance,” said Lucy Xi, Regional Sales Manager at Exail. “With its versatility, ease of deployment, and cost-effectiveness, the Gaps M3 is a valuable tool for offshore operators seeking efficient and accurate tracking capabilities.”

Designed for both permanent and opportunistic installations, the Gaps M3 excels in coastal and nearshore projects, where space, budget, and operational flexibility are crucial. Its ability to track targets at high elevations makes it particularly well-suited for dynamic offshore environments, such as subsea cable laying, pipeline installation, and marine construction.

With this milestone, Exail continues to expand its portfolio of inertial and acoustic positioning solutions, reaffirming its commitment to delivering accessible, high-performance navigation technology to the offshore and subsea industries.

by AHayward

Cerulean Sonar Unveils the Omniscan 450 Compact: Expanding the Omniscan Family with Convenient Form Factor and Enhanced Connectivity

Cerulean Sonar recently announced the launch of the Omniscan 450 Compact, the latest addition to its Omniscan family. The "Compact" introduces a new form factor and advanced connectivity and diagnostic features that simplify deployment on modern small ROVs.

The Omniscan 450 Compact features three external ports and an internal Ethernet switch, allowing users to daisy chain up to two additional Ethernet devices while utilizing only a single vehicle Ethernet port. This configuration offers streamlined integration with other onboard systems, reducing cabling complexity and enhancing deployment efficiency. One of the additional ports can also accommodate a variety of pressure and temperature sensors, further broadening the Compact’s versatility.

The new form factor matches common FLS devices supported by most small ROVs, thus easing integration efforts. Finally, a new externally visible LED provides clear power indication and additional diagnostic feedback, ensuring quick and effective troubleshooting during operation.

The entire Omniscan family, including the FS, SS, and Compact models, employs a fixed, single, narrow, tall “fan beam.” Scanning with Omniscan is under the direct control of the ROV operator so they can focus on specific areas of interest. As the ROV or surface vessel moves, SonarView “paints” a clear, detailed image of the scanned area, providing exceptional situational awareness even in the murkiest underwater conditions. Omniscan has superior image quality and longer range than multibeam FLS sonars costing 10 times more.

For underwater vehicles lacking positioning information, Omniscan's patent-pending Doppler Motion Tracking technology offers translational data in the direction of the beam. When paired with two Omniscan 450FS units—one facing forward and one oriented 90 degrees to the side—users can achieve full 2D motion tracking. Additionally, the system supports position-hold functionality when integrated with compatible ROV systems.

For more information about the Omniscan 450 Compact and the full range of Cerulean Sonar products, visit www.ceruleansonar.com

by AHayward

Sidus Solutions llc announces strategic partnership with industrial device investments, llc

SIDUS is an integrated systems provider of security and video surveillance systems for the energy, nuclear, scientific research, military, and petrochemical industries. SIDUS designs, services, and manufactures complete, integrated security and surveillance solutions for any marine, defense, and subsea application.

IDI is a family investment office specializing exclusively in industrial product companies. With a focus on fostering innovation, IDI supports companies leveraging emerging technologies, operating from a proven playbook, to enhance industrial processes and drive growth.

The investment by Industrial Device Investments in SIDUS Solutions was crafted to meet the unique needs of SIDUS’ seller, Leonard Pool, who will be staying on as the company’s president while IDI seeks to build infrastructure and continue the company’s strong growth. IDI's Managing Director Charles Aiken led the closing of the deal.

John Dalton, Managing Partner of IDI, said, “We are delighted to have invested with Leonard and the SIDUS team. SIDUS is an excellent company with a clear plan, operating in a defined niche, and is a great fit for IDI. We worked to achieve Leonard’s goals and create a strong platform for growth for IDI, and now we are very proud that IDI is six companies strong.”

Leonard Pool, seller, shared, “We are thrilled to have successfully completed this transaction. While the process was challenging, our collaboration with IDI has been outstanding. They took the time to understand my goals as a seller and crafted a deal that aligned with both of our objectives. Their strategic approach and deep understanding of our business were key in making this partnership a success. I'm excited about the future and look forward to a long and productive relationship.”

by AHayward

SeaClear 2.0: Cleaning Our Oceans bottom with Uncrewed Autonomous Systems

With approximately 25 million tons of plastic waste polluting our oceans and over 90% of marine litter resting on the seafloor, tackling this issue has never been more urgent. The SeaClear 2.0 project is at the forefront of innovation, combining robotics, AI, and sustainability to develop ground-breaking solutions for cleaning our oceans.

The Mission to Restore Our Oceans

SeaClear 2.0 addresses one of the Mediterranean Sea's most pressing issues: plastic pollution. Every year, an estimated 600,000 tons of macroplastics and microplastics enter European seas, with the Mediterranean being the hardest hit due to its semi-enclosed geography and intense coastal activity.

As part of the European Mission to restore, protect, and preserve the health of our oceans, seas, and waters by 2030, SeaClear 2.0 is pioneering a comprehensive approach to reduce marine litter. The project aims to:

• Decrease pollution in the Mediterranean and beyond.

• Advance innovative, cost-effective solutions for ocean clean up.

• Demonstrate collaboration between the original SeaClear and its enhanced successor, SeaClear 2.0.

• Engage stakeholders, empower citizens, and provide actionable policy recommendations.

Subsea Tech's Contribution to SeaClear 2.0

As a key partner in the project, Subsea Tech brings its expertise in autonomous and robotic systems to support SeaClear 2.0’s mission. The company provides two advanced robotic solutions:

SeaCAT USV

The SeaCAT is an autonomous and remote-controlled Uncrewed Surface Vehicle (USV) that serves as the central hub for SeaClear 2.0. It coordinates and deploys multiple robotic assets to detect, classify, and collect marine litter.

• Dimensions: L 6.83 m x W 3.1 m x H 2.15 m
• Weight: 1,200 kg (without payload and fuel)
• Fuel capacity: 400 l
• Payload capacity: 500 kg
• Max. speed: 6 knots
• Endurance: Up to 10 days
• Sea state tolerance: Up to sea state 3 (operation), 5 (transit)
• Deployed systems:
o Mini TORTUGA ROV for underwater mapping and environmental monitoring
o Autonomous UAV for aerial mapping and detection
o Motorised Grapple system for handling marine waste up to 250 kg
o Collecting net for floating debris

Mini TORTUGA ROV

The Mini TORTUGA is a compact and highly manoeuvrable Remotely Operated Vehicle (ROV) deployed by the SeaCAT to map the seafloor and identify debris before collection operations.

• Max. depth: 300 m
• Dimensions: L 672 mm x W 310 mm x H 381 mm
• Weight: 19 kg (ROV only)
• Max. speed: 4 knots
• Mission: Underwater mapping, debris detection, and environmental monitoring
• Sensors: Full HD video, high-resolution imaging sonar, side-scan sonar, magnetometer

By integrating these cutting-edge robotic solutions, SeaClear 2.0 can autonomously detect, classify, and collect marine litter, even in challenging underwater environments. The system is capable of operating at depths of up to 300 meters and lifting objects weighing up to 250 kilograms.

Revolutionising Ocean Cleanup

SeaClear 2.0 is a direct evolution of the Horizon 2020-funded SeaClear project. With its fleet of autonomous surface and underwater robots, it represents a technological breakthrough in ocean clean-up efforts. By leveraging AI and robotics, the project supports the EU’s Zero Pollution Action Plan, aiming to reduce plastic litter by 50% and microplastics by 30% by 2030.

Furthermore, the project aligns with the Marine Strategy Framework Directive, ensuring that marine litter no longer poses a threat to marine ecosystems and human activities.

Looking Ahead

As SeaClear 2.0 enters its second phase, the project is preparing for its first system pilot in Hamburg, Germany, in May 2025. Following this, the technology will be demonstrated across five Mediterranean locations, Marseille, Venice, Dubrovnik, Ashdod and Tarragona, where it will prove its versatility in diverse underwater environments. These pilots will also highlight the SeaCAT’s potential for future applications, including geotechnical surveys, seabed mapping, and marine environmental monitoring.

About Subsea Tech

Subsea Tech is a leader in innovative underwater technologies, specializing in tailored solutions for infrastructure inspection and environmental restoration. Known for its agility and rapid response, the company is a trusted partner in advancing sustainable marine operations worldwide. With its SeaCAT USV and Mini TORTUGA ROV, Subsea Tech is contributing to the future of autonomous marine clean-up solutions, helping industries and governments meet their environmental objectives.

For more information, visit https://www.seaclear2.eu/ or contact us at [email protected]

by AHayward

Falmouth Scientific’s AquaPulseTM Surpasses 10 Million Shots Without Maintenance or Performance Degradation

Falmouth Scientific announces that its AquaPulseTM Acoustic System has exceeded 10 million shots in a recent survey without maintenance, failure, or any change in acoustic output. This highlights superior reliability and consistency for marine geophysical surveys.

AquaPulse delivers high-resolution, bubbleless acoustic pulses for sediment profiling. The high energy low frequency source output was able to produce acoustic images to depths of 1000m below the seabed in 10m water depth. The AquaPulse stands out among other acoustic sources in the survey space that also utilizes traditional seismic sources, such as sparkers, boomers, and air guns. These devices require tip replacement, source plate energy degradation and mechanical parts replacement, and rebuilds. The AquaPulse does not require any of these maintenance tasks to maintain a repeatable acoustic output signature. No specialized power source is required for vessel integration. The AquaPulse operates on a standard 120V/220V outlet with minimal energy consumption (1-2 kW). Pre- and post-project testing confirmed no change in the system’s acoustic signature after 10M shots, proving outstanding, consistent, repeatable performance.

See Falmouth Scientific at Booth W86 or contact [email protected] for more information.

by AHayward

Deep Trekker and Navtech Radar Join Forces at Ocean Business 2025

Deep Trekker is excited to announce its co-exhibition with Navtech Radar at Ocean Business 2025, a premier event for ocean science and technology professionals. This collaboration brings together two Halma companies dedicated to advancing maritime safety, efficiency, and innovation. Attendees will have the opportunity to explore state-of-the-art underwater and radar technologies designed to address the evolving challenges in the maritime sector.

A New Era of Maritime Navigation and Inspection

Deep Trekker and Navtech Radar each bring unique expertise to the maritime industry. Deep Trekker’s Remotely Operated Vehicles (ROVs) deliver high-precision underwater inspections, offering stability and maneuverability for ship hull surveys, port security, and offshore asset monitoring. Navtech Radar provides advanced sensor solutions for real-time navigation, obstacle avoidance, and situational awareness, supporting both crewed and autonomous vessel operations.

At Ocean Business 2025, both companies will showcase how their respective technologies contribute to the future of marine operations, delivering reliable data and improving decision-making in complex environments.

Showcasing Cutting-Edge Maritime Technology

Deep Trekker and Navtech Radar will present a complete approach to marine monitoring and inspection. Deep Trekker’s advanced Remotely Operated Vehicles (ROVs) provide detailed underwater assessments, while Navtech Radar’s high-performance sensor solutions enhance surface navigation and situational awareness.

With these technologies, operators can achieve a more complete understanding of their environments - whether conducting infrastructure inspections, navigating complex waterways, or improving port security.

What to Expect at Ocean Business 2025

Attendees at Ocean Business will have the chance to see these technologies in action. Representatives from both companies will be available to discuss how these technologies support industry needs and address operational challenges in offshore energy, commercial shipping, and autonomous vessel navigation.

Featured Technologies:

Deep Trekker ROVs: Engineered for high-precision underwater inspections, Deep Trekker's robust ROVs deliver unmatched stability and maneuverability, making them essential for ship hull surveys, port security, and offshore asset monitoring.

Navtech Radar: Providing advanced radar solutions for real-time navigation, obstacle avoidance, and environmental awareness, Navtech Radar enhances maritime operations with highly reliable, mission-critical systems.

Live Demonstrations and Hands-On Experience

Attendees will have the opportunity to witness these technologies in action through on-water demonstrations and interactive booth experiences. Deep Trekker ROVs will showcase their agility and high-resolution imaging, while Navtech Radar will exhibit its precision navigation and obstacle detection capabilities. These live demonstrations will highlight the effectiveness of integrated autonomous systems in enhancing maritime operations.

Commitment to Innovation in Maritime Technology 

As part of Halma, Deep Trekker and Navtech Radar share a dedication to advancing ocean technology through innovation and reliability. By providing high-performance solutions for subsea and surface operations, both companies contribute to safer and more efficient maritime workflows.

Attendees from both companies - Serena Brown and Glynn Chisholm from Deep Trekker, along with Sam Wood, Rachael O’Connor, Jane Avery, and Zoe Waldron from Navtech Radar - will be available to discuss how these solutions address industry challenges and explore potential applications for maritime professionals.

Visit Stand W49 at Ocean Business 

2025

Deep Trekker and Navtech Radar are looking forward to engaging with industry professionals and showcasing how their technologies drive operational success. Don’t miss the chance to explore these innovations in person. Visit Stand W49 to engage with experts, explore cutting-edge technology, and discuss customized solutions for maritime challenges. For those interested in private demonstrations or further information, booking opportunities will be available on-site.

For more information, visit our exhibitor listing: Deep Trekker at Ocean Business

Exhibiting Name: Deep Trekker
Stand #: W49

by AHayward

GeoAcoustics Ltd gears up for new technology and service launches at Ocean Business 2025

British hydroacoustic technology manufacturer, GeoAcoustics Ltd, is planning to launch new sonar products and expanded services for OEM customers at Ocean Business 2025 in April.

Visitors to the leading hydroacoustic technology manufacturer’s stand can find out about the company’s first new side scan sonar systems in more than ten years. With a choice of two dual frequency models, the new sonar promises cost-effective high-resolution data for a wide range of diverse applications.

“Last year’s launch of GeoPulse 2 expanded our sub-bottom profiler range and we are keen to introduce more new developments at Ocean Business, this time for high-resolution side scan imaging,” said Richard Dowdeswell, Chief Commercial Officer, GeoAcoustics Ltd.

In parallel to new product developments, the Norfolk headquartered subsea technology veteran and long-time Ocean Business exhibitor will release details about an extensive upgrade and expansion of its cable moulding facilities.

“We have been working hard to establish new capabilities that will meet growing demand from OEMs for high-quality, professional services in this specialist field, and are looking forward to revealing more at Ocean Business,” adds Dowdeswell.

Ocean Business 2025 takes place at the National Hydrographic Centre in Southampton, 8-10 April. GeoAcoustics can be found on stand H4.

by AHayward