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will be equipped with Cellula’s hydrogen fuel cell technology, supporting sustainable, long duration operations with zero carbon emissions • Teledyne Marine Acquires Valeport Teledyne Marine agreed to acquire Valeport a leader in the design and manufacture of underwater sensors and pro? l- ers. Valeport
NEW TECH OCEANOLOGY INTERNATIONAL 2024 Image courtesy Metron/Cellula Teledyne Marine acquires Valeport: Matt Quartley, MD, Valeport and Ole Søe-Pedersen, VP & Image courtesy Teledyne Marine GM Teledyne Marine announce the deal in London. Pictured (L-R): Cellula Robotics, President, Eric Jackson, Metron
Image courtesy Kongsberg Discovery Image courtesy Teledyne Marine New Products Teledyne Marine had its traditional mega-booth at Oi, busy start to ? nish. Image courtesy Greg Trauthwein offers quality sub-bottom pro? ling capability without the need tion of offshore windfarms. GeoPulse 2 introduces new
DVL technology with tion module allows detecting objects in the side-scan sonar additional position-aiding sensors for reliable vehicle control. www.marinetechnologynews.com 41 MTR #3 (34-47).indd 41 4/4/2024 2:25:27 P
.com>. FEEDBACK Readers are encouraged to share their ocean lander experi- ence, projects, inventions, and feedback by writing to Kevin Hardy @ [email protected]. www.marinetechnologynews.com 39 MTR #3 (34-47).indd 39 4/4/2024 11:11:26 A
LANDER LAB #10 Photo courtesy West Mountain Radio Photo courtesy of Clarios/AutoBatteries.com Figure 6 The West Mountain Radio Computerized Battery Analyzer (CBA V) attaches to a Figure 5 laptop by a USB-B cable, and to a battery by Powerpole® Connectors. Exploded view of an AGM lead-acid battery.
if pressure compensated, though this author has nev- deep sea tide capsule with expendable ballast frame and er tried that. lead-acid batteries, 1968. www.marinetechnologynews.com 37 MTR #3 (34-47).indd 37 4/4/2024 10:53:09 A
LANDER LAB #10 Of special interest for marine applications, LiPo batteries are Shipping any kind of lithium battery can 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 ?
, and much safer than primary lithium cells. They are used in ap- plications requiring lightweight and high-power drains. They COMMON BATTERIES IN MARINE APPLICATIONS Certain chemistries have found wide use in the marine ? eld do require built-in protection against overcharging and over for their
LANDER LAB #10 BATTERY PACKS, CHARGING, AND CAPACITY TESTING Photo Credit: Hanumant Singh / 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
developments include the vessel’s launch and recovery system (LARS) which deploys and recovers the col- lector and feeds its power and control um- www.marinetechnologynews.com 29 MTR #3 (18-33).indd 29 4/4/2024 2:10:29 P
, subsea technology helped scien- This indicated the resilience of certain tent of impact and inform future manage- tists uncover the behaviors of underwa- marine ecosystems, providing a new ment and recovery both in Tonga and the ter volcanoes. “We can use hydrophones baseline for monitoring future recovery
elatively inactive since 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
2024 Editorial Calendar January/Februay 2024 February 2024 March/April 2024 Ad close Jan.31 Ad close March 21 Ad close Feb. 4 Underwater Vehicle Annual Offshore Energy Digital Edition ?2?VKRUH:LQG$)ORDWLQJ)XWXUH ?2FHDQRJUDSKLF?QVWUXPHQWDWLRQ 6HQVRUV ?6XEVHD'HIHQVH ?6XEVHD'HIHQVH7KH+XQWIRU ?0DQLS
lifespan prediction for every CP anode pro- life of sacri? cial anodes), Recommended time to next inspec- tecting the entire subsea infrastructure. www.marinetechnologynews.com 19 MTR #3 (18-33).indd 19 4/4/2024 9:55:02 A
TECH 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)
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 marine growth streams demand can have implications across the board, from and/or corrosion products, or due to the anode being buried in reducing the risk
TECH FEATURE IMR Image courtesy FORCE Technology OPTIMIZING CATHODIC PROTECTION SURVEY USING NON-CONTACT SENSORS By Svenn Magen Wigen, FORCE Technology he principle behind sacri? cial anodes, which are water structures, reducing the need for frequent repairs and used to safeguard underwater pipelines
large buoyancy engine and optional thruster capa- bility will keep the glider on track. It is expected that the Slocum Sentinel Glider will con- MARINE tinue the upward trajectory of glider use in a variety of ap- TECHNOLOGY plications, including new, non-traditional ? elds for glider use, such as
customers,” said Dan Shropshire, Vice President Business largest buoyancy engine, with a volumetric capacity of 4 li- Development and Program Execution, Marine Vehicles, “The ters – more than double any other available glider buoyancy Slocum Sentinel Glider represents the next generation in per- engine.
. TWR has delivered over 1,100 Slocum Gliders to scienti? c, academic, and defense customers in the past 25 years, with over 50 sensor and www.marinetechnologynews.com 13 MTR #3 (1-17).indd 13 4/4/2024 9:39:23 A
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).indd 12 4/4/2024 8:53:52 A