Impulse News

Underwater bulkhead connectors and mating in-line connectors come in a myriad of shapes, sizes and pin patterns from several companies. The system designer is faced with a daunting challenge to select the one best suited to their application. Credit: HPA Subsea

Lander Lab: Selection Criteria for Underwater Cable and Connectors

(Google Electro Oceanics Cooper)Hydro Group Systems https://www.hydrogroupsystems.com/ Marsh Marine The original. The name is still around.Souriau-Sunbank (Eaton) https://usa.souriau.com/en-en/products/connectors/underwater-connectors TE/SEACON (Google “TE SEACON”)Teledyne Impulse https://www.teledynemarine.com/brands/impulse WeTechnologies https://wetechnologies.com/ AcknowledgementsI learned a lot from Ray Hayworth, General Dynamics Electric Boat Division, who shared his experience broadly, spoke at MTS cable and connector conferences, and published design guidelines

Nexans supplied the high-voltage direct current (HVDC) cable for TennetT’s DolWin6 project.
Image courtesy TenneT

Upscaling Power Subsea: Cables and Connectors

introducing health monitoring into its products to boost asset management capabilities. This could allow a customer to get data feedback from sensors in a connector system that tells if it is working well or has performance issues such as running too hot or being subject to adverse shock.Teledyne Impulse-PDM specializes in high-performance subsea fiber optic connectors and interconnect systems, and Andy Cackett, Teledyne Impulse-PDM European Business Development Manager, says he is seeing growing demand for solutions that can perform reliably in less-than-ideal installation conditions. Expanded

WHOI Postdoctoral Investigator Carolin Nieder holds a 3D-printed shark jaw made by staff in DunkWorks Lab within the George & Wendy David Center for Ocean Innovation. Credit: Daniel Hentz, Woods Hole Oceanographic Institution

WHOI: New Discovery Reveals Sharks May Detect and Produce Sound

sounds serve, is not yet understood. Tests of this animal’s hearing range reveal that the clicks produced by rig sharks exceed their low-frequency sensitive hearing range. This raises doubts about whether these sounds play a role in communication between individuals. However, because the initial impulse contains lower frequencies, it's possible that rigs may still be able to hear at least part of them.Nieder’s team is analyzing contextual clues to understand the clicks' purpose. While rigs that were handled produced clicks, and produced significantly more during the first 10 seconds

Omicron optical fiber connectors used to assist a deep ocean-rated camera system to capture ground breaking underwater content for BBC Studios. 
Image courtesy Teledyne Impulse-PDM

Connectors Facilitate Camera System for BBC Underwater TV Series

Teledyne Impulse-PDM supplied its Omicron optical fiber connectors to BBC Studios for use in its upcoming underwater natural history series, set to air in 2026. Filming required custom-built camera technology designed to capture extraordinary marine footage from the depths of the Arctic, facilitated by the Rev Ocean’s Aurora ROV.To capture groundbreaking underwater content BBC Studios and Marine Imagine Technologies designed a deep ocean-rated camera system integrated with a telemetry bottle, the central hub for communications on the submersible. However, during the Arctic expedition

L- R: Tony Laing of NSRI, David Rennie of Scottish Enterprise and Neil Gordon of Subsea UK. (Photo: Subsea UK)

Japan, Scotland Invest in Subsea Technology

, platforms etcSustainable Marine Energy with IHI (£1 million)Developing a template anchoring system and robotic installation tooling for deep water floating offshore wind market in Japan. IHI are also developing a turbine system for use in ocean current renewable power.ECOG / SME / Precision Impulse / Texo / Tritech / Sensor Works and Yokogawa (£8.3 million)Developing an offshore and subsea Internet Of Things infrastructure with autonomous vehicles, sensors, communications and power systems for offshore and subsea infrastructure including renewables, hydrocarbons and aquaculture.Bridon

Image: Grupo Lindley / Administração dos Portos do Douro, Leixões e Viana do Castelo

Case Study: Floating top marks for piles in flooding rivers

of the river. Generally, the narrow and shallow sections occur close to dams on the downstream side and deeper water close to dams on the upstream side.The development hinges around the concept of a floating top mark that acts as a buoy when moored to the top of the pile. When water level rises the impulse of the top mark-buoy will release the unit from the pile at which point it will float away down river until the mooring line is taught.  The unit will then act as a buoy remaining vertical and upright when afloat in low current speeds, although it is improbable the unit will remain vertical

Mike Read (Photo: Teledyne Marine)

5 Minutes with Mike Read, President, Teledyne Marine

boundary penetrators, cable assemblies, cable terminations, and custom-engineered encapsulation and molding. They are available as stand-alone items, or as complex higher-order solutions that integrate cross-platform technologies into advanced, value-added systems. Interconnect brands include: DGO, Impulse, Impulse PDM, ODI, Cable Solutions, and new tech for 2018 includes:Teledyne ODI developed the new FlameGuard P5-200 as a key enabling technology for a 5 kV - 200 A, three-phase dry mate electrical feedthrough system.Teledyne Cable Solutions developed a range of National Electric Code (NEC) and Canadian

Gemini 720im (Photo: Tritech)

Tritech Unveils New Multibeam Imaging Sonar

based on user specified speed of sound   Interface Supply voltage: 12 to 48V DC Power requirement: 4.5W – 17W (7.5W average) Main port protocol: Ethernet (100Base-T) and/or Serial (RS232 or RS485) Auxiliary port protocol: Serial (RS232 or RS485) Connector type: Main - Seacon HUML-12, Impulse MKS(3) & Tritech Micron; Aux - Tritech Micron   Physical specification Depth rating: 300m Weight in air: 0.435kg Weight in water: 0.244kg Temperature rating: -10 to +35°C (operating), -20 to +50°C (storage

(Image: EIVA)

EIVA Cable Telemetry Kit Available as an OEM Product

Topside (2U rack unit) with 300 W power supply, and Modem for Ethernet over power cable (4-5 Mbit/s via a single wire 4,000 m coax, with higher bandwidths – up to 7 Mbit/s – possible via shorter cables) 600 m-rated pressure bottle with subsea electronics with nine Teledyne Impulse interface connectors, with a mixture of Ethernet and serial ports; Modem for Ethernet over power cable; eight-port multiplexer, Ethernet to RS2323 or RS485; two DC output power modules each at 130 W (one is preconfigured to 24 V, the other is customizable, allowing for 12-48 V)  

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