Is
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March 2024 - Marine Technology Reporter page: 4th Coverfuorescence and ynamic range and exceptional backscatter sensor. With improved dynamic range and exceptional ght conditions, the RBRtridente is endurance under a wider variety of light conditions, the RBRtridente is easily integrated into RBR CTDs or your favourite vehicle platform.ur favourite
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March 2024 - Marine Technology Reporter page: 45. The new agreement will address speci? c techni- cal gaps in the UUV defense and offshore energy markets especially for long duration, multi-payload mission opera- tions where communications are often denied or restricted. As part of the new alliance, Metron’s Resilient Mission Autonomy portfolio will
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March 2024 - Marine Technology Reporter page: 44London. Pictured (L-R): Cellula Robotics, President, Eric Jackson, Metron Inc. President and CEO, Van Gurley, and Cellula Robotics CEO, Neil Manning. Chris Blake, VP Survey, Unique Group; Martin Wien Fjell, President, Kongsberg Discovery; Sahil Gandhi, CEO Unique Group; Che Keong Lee, Senior Sales Greensea
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March 2024 - Marine Technology Reporter page: 39Photo courtesy Global Ocean Design Figure 7 A 35Ah AGM lead-acid battery is tested using the West Mountain Radio CBA to show the effect of simply ? lling the battery voids with mineral oil as a compensating ? uid. The CBA is programmed to cut-off at a voltage of 10.50v. The top line (red) shows the
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March 2024 - Marine Technology Reporter page: 38have a lower nom- ment System) the batteries are individually balance charged inal cell voltage of 1.2v/cell. They can be recharged up to and balance discharged on the same two-wire bus. 2,000 cycles. Self-discharge rate is 20%/month. They have a QUANTIFYING BATTERY CAPACITY reasonably high power-to-weight
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March 2024 - Marine Technology Reporter page: 37miscible barrier ? uid heavier than seawater (sg=1.026) and lighter than the battery electrolyte (sg=1.265). The original cell vent cap was screwed into the top of the riser pipe to vent the gases associated with charging. Wires were soldered to the lead (Pb) posts. The lead-acid battery was additionall
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March 2024 - Marine Technology Reporter page: 36can be a challenge, and offered in a “pouch” design, with a soft, ? at body. The pouch IATA regs vary with the batteries inside or outside an instru- is vacuum-sealed, with all voids ? lled by a gelled electrolyte. ment housing. Freight companies, including DHL, FedEx, Thus, there are no implodable
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March 2024 - Marine Technology Reporter page: 351 A self-righting vehicle design with buoyancy high and weight low, WHOI’s SeaBED AUV captures the attention of a pair of curious Antarctic penguins as it is deployed from the British research vessel James Clark Ross. Vehicle designers allowed for temperature reduction of battery capacity. Rechargeable
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March 2024 - Marine Technology Reporter page: 34Singh / Woods Hole Oceanographic Institution. By Kevin Hardy, Global Ocean Design LLC n ocean lander has many strengths including that produces the current is irreversible. Examples include ? exibility of deployment location and tremen- alkaline and lithium cells. Secondary cells can be recharged dous sea
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March 2024 - Marine Technology Reporter page: 33worked with Oil States Industries to calculate cost per tonne ? gures for prospective customers. Patania II uses jet water pumps to Oil States’ Merlin riser systems were lift nodules into a collection drum. successfully deployed on both the TMC / Allseas and JAMSTEC 2022 pilot projects. They also hold
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March 2024 - Marine Technology Reporter page: 32signed a binding MoU with hydraulic technology. Paci? c Metals Corporation of Japan for a feasibility study on The company’s SMD Q-Collector range is available in a vari- processing 1.3 million tonnes of wet nodules per year, and the ety of sizes to suit vessel and client requirements. Engineered
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March 2024 - Marine Technology Reporter page: 30. The LARS can operate in up to 3.5m wave Company CEO Gerard Barron. In-? eld collection system tri- height signi? cant. The physical connection and disconnection als conducted in 2022 where TMC collected 3,000 tonnes of between collector and power umbilical is performed subsea, nodules have helped
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March 2024 - Marine Technology Reporter page: 27SEA-KIT USV Maxlimer returning from HT-HH caldera in Tonga. © SEA-KIT International data and further assess ecosystem recov- ery. What is known, noted Caplan-Auer- bach, is that the impact of submarine vol- canoes on humans is rare. “The HT-HH eruption was a tragedy, but it was very unusual. It let us
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March 2024 - Marine Technology Reporter page: 26INSTRUMENTATION & SENSORS Kevin Mackay, TESMaP voyage leader and Center head of the South and West Paci? c Regional Centre of Seabed 2030. Kevin in the seismic lab at Greta Point looking at the Hunga Tonga-Hunga Ha’apai volcano 3D map completed with data from the TESMaP voyage on Tongaroa and later ?
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March 2024 - Marine Technology Reporter page: 23since 2014, the Hunga Tonga–Hunga Ha‘apai (HT-HH) submarine volcano began erupting on December 20, 2021, reaching peak intensity on January 15, 2022. This triggered tsunamis throughout the Pa- R ci? c, destroyed lives and infrastructure, and generated the largest explosion recorded by modern instrumentation
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March 2024 - Marine Technology Reporter page: 22FEATURE OCEANOGRAPHIC INSTRUMENTATION & SENSORS Aerial view of HT-HH volcano, showing new multibeam depth data overlaid on islands satellite image. © SEA-KIT, NIWA-Nippon Foundation TESMaP 22 March/April 2024 MTR #3 (18-33).indd 22 4/4/2024 9:08:10 AM
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March 2024 - Marine Technology Reporter page: 19About the Author vey with the pipe tracker is not required, resulting in signi? - Svenn Magen Wigen is a Cathodic Protection and corrosion control cant cost savings, mainly related to vessel charter. expert having worked across The major advantage of using FiGS on any type of subsea engineering, design
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March 2024 - Marine Technology Reporter page: 18TECH FEATURE IMR There are also weaknesses in terms of accuracy because of FiGS Operations and Bene? ts signal noise and the ability to detect small ? eld gradients. In Conventional approaches to evaluating cathodic protection this process there is a risk that possible issues like coating (CP)
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March 2024 - Marine Technology Reporter page: 17• Integrity assessment, and otherwise covered, e.g., by rock dump. As for depletion of • Mitigation, intervention and repair. sacri? cial anodes, this can be dif? cult or even impossible to Selecting the best method for collecting the data these work- estimate due to poor visibility, the presence of
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March 2024 - Marine Technology Reporter page: 15sensor options for longer mission periods. About the Author For glider users working in ? sheries and conservation, Shea Quinn is the Product Line Manager the Sentinel can run several high-energy passive and active of the Slocum Glider at Teledyne Webb acoustic sensors, on-board processing, and imaging
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March 2024 - Marine Technology Reporter page: 14sensor or hardware integrations. tions,” said Quinn. “The size of the Sentinel gives it the energy capacity to in- The Slocum Sentinel Glider uses the established piloting, crease mission length to over 2 years; or users can ? t more ? ight control, and communications architecture of the Slocum high-energy
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March 2024 - Marine Technology Reporter page: 13nyone familiar with glider hardware options integrated for a broad Glider answers that need,” said Shea autonomous underwater ve- range of missions. Quinn, Slocum Glider Product Line hicles (AUVs) is certainly “As the use of Slocum Gliders grew, Manager at TWR. A familiar with the popular- so did
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March 2024 - Marine Technology Reporter page: 12TECH FEATURE TELEDYNE SLOCUM GLIDERS Teledyne Webb Research Engineers deploy the Slocum Sentinel Glider in Cape Cod Bay for testing. Teledyne Webb Research AS THE GLIDER COMMUNITY GROWS, SO DO GLIDERS By Shea Quinn, Slocum Glider Product Line Manager, Teledyne Marine 12 March/April 2024 MTR #3 (1-17).
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March 2024 - Marine Technology Reporter page: 11assist in identifying mines and act as a neutralization device. About the Author Bottom mines pose even greater chal- David R. Strachan is a defense analyst and founder of lenges. Unlike contact mines, bottom Strikepod Systems, a research and strategic advisory mines utilize a range of sensors to