O-Ring Seal Design: Face Seals for External Pressure
It’s a mechanical problem first. If the seals don’t work, what’s inside doesn’t matter anymore.Right off the bat: Parker Seal Company literally wrote the book on o-ring seals. There is no better design reference for o-ring seal design than the Parker O-ring Handbook (ORD-5700). A pdf is available for free at <www.parker.com>. It is mandatory reading for ocean engineers, and contains much more detail than possible in this article. Zoom in on the sections relevant to your work, then come back later and explore other seal designs, such as dovetail grooves, SAE Boss seals
Kongsberg Discovery Upgrades Argeo Listen Electromagnetic Sensor
Kongsberg Discovery has upgraded its Listen electromagnetic sensor system. Formerly known as Argeo Listen, the system has undergone hardware and software enhancements, delivering improved data processing and visualisation capabilities. The platform agnostic technology is now available for a range of applications across the ocean science, defence, energy and minerals sectors, amongst others.Users familiar with Argeo Listen will recognize the enhanced software environment, now integrated with Kongsberg’s Blue Insight ecosystem. The upgraded suite enables streamlined, end to end workflows
Taking Quantum Logic to the Edge
mission-critical applications that need to provide real-time situational awareness. “People think a lot about quantum computers, and we work on things that they are well suited for, but it’s not necessarily an important distinction for us,” he says. The quantum logic that is useful for many maritime applications is very powerful on different types of computer architecture. “You don’t need a quantum computer to do quantum logic.”In January, Entanglement, Inc. completed its acquisition of Applied Ocean Sciences (AOS), a leading ocean science and ocean acoustics company
Kongsberg Discovery Upgrades Kongsberg Listen Electromagnetic Sensor
Kongsberg Discovery has upgraded its Kongsberg Listen electromagnetic sensor system, enhancing data processing and visualization capabilities for inspections, surveys and knowledge acquisition in complex underwater environments.The system, formerly known as Argeo Listen, has undergone hardware and software improvements following Kongsberg Discovery’s acquisition of Argeo’s electromagnetic sensing technologies and recruitment of its staff in August 2025. The company said it has focused on integrating the technology into its existing portfolio while accelerating innovation.The upgraded
Cellula Robotics Joins Canadian Technology Accelerators UK Maritime Defense Program
Cellula Robotics has been selected to participate in the Maritime Defence and Security Applications of Ocean Technologies program in the United Kingdom through the Canadian Technology Accelerators (CTA) initiative.Led by the High Commission of Canada in the United Kingdom and delivered in collaboration with BMNT, the program supports Canadian companies developing advanced ocean technologies that align with shared Canada–UK maritime defense priorities.As maritime security challenges evolve, structured collaboration between allied nations and industry partners is increasingly important. The CTA
Cellula Robotics Shortlisted for Vimy Forge Black Flight Cohort
Cellula Robotics Ltd. was shortlisted for Vimy Forge’s inaugural Black Flight (Cohort I), Canada’s sovereign defence and national security innovation accelerator.Vimy Forge supports Canadian companies developing technologies relevant to defence and national security by facilitating structured engagement with operational stakeholders and improving access to defence-focused capital.Cellula specializes in long-range, fuel cell-powered autonomous underwater vehicle (AUV) systems designed for persistent subsea operations. Its platforms support applications including subsea monitoring
Martens en Van Oord Purchases Autonomous Survey Vessel From Demcon unmanned systems
Martens en Van Oord, a contractor in roadworks, civil and hydraulic engineering, is taking a step toward further sustainability and modernization of its fleet by investing in the latest generation of the V4000 autonomous unmanned survey vessel (USV) from Demcon unmanned systems, a specialist in high-tech autonomous vessels for hydrographic and maritime applications. The selected 4‑meter variant provides increased range and longer endurance thanks to the additional hull length, enhanced autonomy, and an enlarged moonpool, offering full flexibility for customer‑specific survey configurations.Martens en
Seafloor Systems Inc. as US Channel Partner for GeoAcoustics
GeoAcoustics Ltd, a leader in hydroacoustic survey technology, has announced a new channel partnership with Seafloor Systems Inc., a California-based specialist in integrated hydrographic survey solutions. The agreement sees Seafloor Systems represent the entire GeoAcoustics product portfolio in the United States, including the GeoSwath 4 bathymetric sonar, GeoScan side scan sonar, and GeoPulse sub-bottom profiler systems.Founded in 1999, Seafloor Systems is known for uncrewed systems, survey-grade integration, and customer-focused engineering. With a strong base in the US hydrographic and
Fincantieri, WSense Partner on Underwater Monitoring Systems
Fincantieri has signed a strategic agreement with Italian deep-tech company WSense to jointly develop and commercialize advanced wireless technologies for underwater applications, strengthening the shipbuilder’s position in subsea monitoring and protection systems.The agreement covers both the co-development of wireless underwater communication solutions and a commercial framework for deploying the technology in environmental monitoring and infrastructure integrity applications through Fincantieri Infrastructure.Under the partnership, Fincantieri will integrate WSense’s wireless technologies
December 2025
