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SOCIETY FOR
UNDERWATER TECHNOLOGY
Vol 19 No3
Editor: John Howes
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Editorial
Zoltan Vinegar
Research
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CONTENTS
22
COVER STORY: Deep Sea
Energy
SubCtech Battery
Storage Skid lifted
into ocean by support
vessel after successful
re-charging campaign
NEWS from the
OceanBusiness show
inSouthampton……
…..and Global Offshore
Wind
UNDERWATER IMAGING
Luxus IP Camera,
SmartSight, Deep vision
SOLAR POWERED USVs
Blue Trail, Openocean
Robotics
Seasats,Seatraac,
Echoblue
TRENCHERS
Amphibious HiTraq jetter,
100th Plough, Jet -it, NKT
T3600, Pretrenching
26
30
40
As global demand for deep-sea
energy, surveillance, and
infrastructure expands, the
subsea technology market is
undergoing a transformation.
Subsea power systems must
evolve to support more
autonomous platforms, operate
at greater depths, and reduce
emissions—while remaining
compact, efficient, and fail-safe.
SubCtech, founded in 2010 by
applied physicist Stefan Marx, has
positioned itself as a global
leader in advanced underwater
energy solutions. Based in Kiel,
Germany, SubCtech specialises in
subsea power ands batteries
custom engineering, and rigorous
prototype validation for a wide
range of subsea applications.
With a growing team and
expanding global reach, the
company delivers smart, field-
tested systems that reduce
CAPEX, OPEX, and CO₂
emissions—a win for industry,
security, and sustainability.
AUVS, OFFSHORE ASSETS &
OCEAN MONITORING
SubCtech’s Ocean Power product
line includes lithium-ion battery
systems, energy storage
solutions, and telemetry tools
built for:
● Offshore Oil & Gas CCS
● Environmental monitoring
● Autonomous and remotely
operated vehicles (AUVs, ROVs,
USVs)
At the core of this portfolio is the
INNOVATIVE AND SUSTAINABLE TECHNOLOGIES FOR THE
RAPIDLY-GROWING UNDERWATER MARKETS
DEEP SEA ENERGY
Battery Storage Skid lifted into ocean by support vessel for
first deployment
NEWS
PowerPacks line—robust, long-
lifespan battery systems (up to 25
years) that power everything from
portable sensors to large-scale
underwater platforms.
Engineered for operation in harsh
subsea environments, the
PowerPacks come in a variety of
pressure-tolerant housings
including:
● Titanium: for ultra-deep
missions up to 6000m
● Super-Duplex Stainless Steel:
rugged and corrosion-resistant,
also to 6000m
● Marine-grade Aluminum:
optimized for shallower
operations up to 1000m
BUILT FOR POWER, PROVEN IN
THE FIELD
SubCtech’s battery systems
undergo extensive qualification
testing—including resistance to
shock, vibration, thermal
variation, and electromagnetic
interference. All systems are built
to meet or exceed:
● UN T38.3 (transport safety)
● API17F / API17Q (subsea
equipment reliability)
● MIL-STD, DNV 2.7-3 (portable
offshore units)
The Li-Ion-based PowerPacks
offer automatic protection
against overvoltage,
undervoltage, overcurrent,
overheating, overcharging, and
short circuits and smart algorithm
for complex ESS system.
An intelligent Battery
Management System (SmartBMS)
constantly monitors and
optimizes performance from
individual cells to full module
arrays.
These systems also support AI-
based predictive analytics and
remote diagnostics—enhancing
reliability while minimising
downtime.
PowerPacks can deliver higher
peak currents, operate in sub-
zero temperatures, and support
long-term deployments with
minimal maintenance.
SUBSEA ESS: POWERING THE
ENERGY TRANSITION
A major milestone for SubCtech
is the development of a modular,
scalable Subsea Energy Storage
System (ESS)—the first of its kind
to be certified under API17F and
reach TRL 6 (Technology
Readiness Level 6), validated in
real-world offshore deployment.
The ESS includes:
● Two 1 MWh Battery Storage
Skids (BSS)
● Integrated Power Skid (AC/DC
converter)
FAULT FINDING • CONSTRUCTION • DECOMMISSIONING
Subsea Test Tools
www.c-kore.com
Tel: +44 (0)1904 215161 • Email: sales@C-Kore.com
Insulation Resistance
Electrical TDR
Optical TDR
Sensor Monitor
C-Kore’s patented test tools automate the entire
testing process, achieving significant cost savings. It’s
safe for use on all subsea infrastructure, giving you
better data much faster without extra personnel.
Now with
Optical TDR
● Auto-configuration via
SmartBMS and BCM (Battery
Control Module based on NetDI
technology)
● Redundant architecture for
continuous operation
● Modular expansion to 6 MWh
capacity
Built for a 25-year lifespan, the
ESS currently supports 2000m
deployments, with options for
3000m and 6000m depths. The
system has already been
successfully implemented in the
oil & gas sector, with an
immediate reorder confirming its
value and dependability.
FROM AUVS TO
INFRASTRUCTURE: FLEXIBLE
APPLICATIONS
SubCtech’s vehicle batteries and
subsea systems support a wide
array of defense and industrial
use cases:
● XXL-AUVs for surveillance,
mine detection, and deep-sea
intelligence (up to 12 modules at
100kWh each, totaling >1 MWh
at up to 1000V, in serial or parallel
configurations)
● AUVs with 416 mm, 310 mm or
260 mm battery modules
diameter for underwater
inspection or monitoring
● Docking-enabled AUVs and
ROVs, autonomously charging at
seabed stations without surface
recovery.
The ESS also provides buffering
for renewable energy sources like
wave, wind, and solar power, and
powers subsea compression,
injection, and monitoring
equipment—key to the offshore
energy transition.
ENGINEERING FOR EFFICIENCY
AND SUSTAINABILITY
By minimising the need for
vessel-based operations,
SubCtech’s systems dramatically
reduce both operational costs
and emissions. The ESS can
replace long umbilical
connections, reduce cable
infrastructure, especially long
tiebacks or CCS and extend
autonomous deployment
durations—all while maintaining
high safety and reliability
standards.
The redundancy concept ensures
uninterrupted supply to critical
subsea loads, and smart
telemetry systems enable
wireless underwater
communication via Acoustic
Telemetry Modems (ATM), with
ranges up to 6000m.
GLOBAL GROWTH, LOCAL
EXPERTISE
With 80 employees and tripling
production expansion in 2025,
SubCtech continues to scale
responsibly. Their UN-certified
battery systems are airfreight-
compatible and shipped globally,
supported by a professional
international sales network.
1 MWh Battery Storage Skid deployment
Battery Storage Skid
NEWS
Empowering
The professional portable underwater vehicle.
Seaeye Falcon
The Seaeye Falcon is the most versatile underwater electric
robotic system in its class. Compact, powerful, and depth-rated
to 300m or 1000m, it excels in demanding missions making it
the trusted choice for critical underwater tasks worldwide.
Learn more at: saabseaeye.com
OCEAN BUSINE
function ensures high contrast
across different seafloor types.
Both models include integrated
pitch, roll, heading and pressure
sensors for precise navigation
and depth measurement, helping
users to collect accurate, high-
resolution data in the most
demanding underwater
environments.
Typical applications for the
GeoScan family include Search
and Recovery (SAR), hydrographic
surveying, object detection and
identification, inspection and
engineering support, and marine
geology and archaeology.
It comes with a with a standard
50m tow cable.
GeoAcoustics also
has expanded of its
custom cable
moulding and
assembly services for
subsea equipment
manufacturers, marine
systems integrators
by acquiring a
specialist cable
moulding company
located near its
Yarmouth HQ.
Overmoulding
GeoAcoustics showed its new
sidescan sonar at Ocean
Business. Weighing only 25kg,
the GeoScan is able to be
carried by a single person. The
range currently features two
models, both offering
simultaneous broadband dual
frequency operation and
advanced sonar processing
features.
The GeoScan 2361 operates at
300 kHz and 600 kHz to
maximise range performance,
while the GeoScan 2491 runs at
400 kHz and 900 kHz to deliver
even higher image resolution.
Both include a fast 60 kHz
update rate, CW and Chirp
pulse options, no near-field
blurring, and a maximum
operating depth of 300m.
GeoScan features high-definition
capabilities that combines ultra-
short pulses and pulse
compression to enhance image
resolution and range definition.
A dynamic variable aperture
focusing system enables higher
resolution at shorter ranges and
improved image quality at
longer ranges, while an
automated image equalisation
GEOSCAN
This strategic move unlocks
increased capacity and
specialist expertise, enabling
the delivery of complex, high-
reliability cable mouldings
and terminations for a wide
range of marine and subsea
applications.
Cable moulding is a critical
process in the production and
use of underwater
equipment, involving the
sealing and encapsulation of
cable terminations to ensure
electrical integrity, water
ingress protection, and
mechanical durability under
harsh ocean conditions.
NEWS
SS
Gyrocompassing IMU
MRU
Norwegian Subsea’s Motion Reference Units
(MRUs) are now available integrated with
WASSP’s multibeam sonar systems, offering
enhanced motion data accuracy and
performance for offshore applications.
Designed for simple setup and operation,
Norwegian Subsea MRUs offer comparable
heave accuracy to RTK-enabled systems without
requiring RTK infrastructure.
This is said to be a game-changer for offshore
survey and deep-sea fishing, as precision depth
correction for multibeam data is possible when
external corrections are not available. Further,
the MRUs are ready calibrated and
maintenance-free, reducing downtime and
providing long-term reliability for users.
Well-known for striking a balance between cost
and performance, WASSP’s multibeam systems,
which target the sustainable fishing and marine
survey markets, now achieve higher accuracy
and performance through the integration of
Norwegian Subsea MRUs.
The package is especially beneficial for
customers operating offshore, as the MRUs
compensate for vessel motion with exceptional
precision even in challenging sea states.
WASSP
SBG Systems has unveilled the world's First
MEMS-based Gyrocompassing IMU.
SBG Systems, a leader in high-performance
Inertial Measurement Units (IMU) and Inertial
Navigation Systems (INS), has introduced 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.
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 fused with GNSS using 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, ensuring durability and
reliability in all environments.
MEMS IMU
10
Sonardyne has launched the groundbreaking
SPRINT-Nav U, one of the world's smallest hybrid
acoustic-inertial navigators designed specifically
for compact marine robotic platforms.
This technology delivers the proven performance
of Sonardyne's SPRINT-Nav family in a package
measuring just 135 mm tall by 114mm 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," said 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
SPRINT-Nav
●
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
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.
SPRINT-NAV U
NEWS
SONARDYNE
11
HYPERION 32
eBOSS
EDGETECH
EDGETECH
BURIED OBJECT
BURIED OBJECT
SONAR SYSTEM
SONAR SYSTEM
• Unmatched Clarity
See through the seabed with precision
• Compact & Efficient
High performance with reduced
size & weight
• Seamless Integration
Pairs with EdgeTech 2205 for
full-spectrum obstacle detection
Advanced 3D Imaging
Beneath the Seabed
Discover the power of
broadband, sediment-
penetrating Synthetic
Aperture Sonar (SAS) for
high-resolution imaging
of buried objects.
eBOSS
Redefining subsea imaging for faster,
more effective site clearance
Seabed
What eBOSS sees
UK-based environmental
monitoring instrument
manufacturer, Teledyne Valeport
Water has released the
Hyperion32, the latest addition to
its Hyperion range of high-
performance optical instruments.
Designed specifically for inland
water and shallow marine
environments, the Hyperion32 is
depth-rated to 50m offering a
cost-effective alternative for users
who don’t require deep-sea
capability.
Its streamlined 32 mm diameter
housing also offers a lighter, more
compact form factor, making it
ideal for a broad range of water
quality monitoring applications
where space, ease of deployment
are key considerations.
The Hyperion range is an industry
leading suite of optical sensors,
packaged in Teledyne Valeport’s
signature Titanium housings,
offering precise measurement of
an ever-increasing number of
parameters. With the Hyperion32,
Teledyne Valeport Water delivers
the same trusted optical
performance found in the original
Hyperion, now optimised for
shallow marine, inland and
industrial water operations.
The Hyperion32 is a versatile
sensor ideal for a wide range of
users, including: environmental
monitoring, academic research,
agriculture, municipal water
management, industrial
compliance, conservation,
aquaculture, and civil
engineering—anywhere precise
shallow water data collection is
essential.
“This new sensor offers the same
trusted optics as our deep-water
Hyperion, in a smaller, lighter, and
user-friendly form. It’s a practical
solution for professionals who
require precision and reliability—
without investing in deep-sea
capabilities they don’t need,” said
Nick Smedley, Business Manager
at Teledyne Valeport Water.
TELEDYNE VALEPORT
Hyperion 32
12
Kraken Robotics has received new orders totalling
more than $3 million for Kraken Synthetic
Aperture Sonar (SAS).
The Kraken SAS systems will be integrated on
small and medium-class uncrewed underwater
vehicles (UUVs) for clients in Asia Pacific, Europe,
and North America.
"Kraken SAS enables clients to significantly
increase the capabilities of their uncrewed
platforms, providing a larger swath with consistent
high resolution, enabling missions to be
completed faster and more accurately."Greg Reid,
President and CEO of Kraken Robotics.
One of the orders is for the University of Southern
Mississippi's Roger F. Wicker Center for Ocean
Enterprise, which will be outfitting a variety of
autonomous underwater vehicles (AUVs) and
autonomous surface vessels (ASVs) with Kraken
SAS to support research, development, testing,
and evaluation activities Kraken SAS integrates
the capability to perform imaging and
bathymetric mapping simultaneously, offering
user selectable 3 cm x 3 cm or 2 cm x 2 cm
processing and increased ranges up to 200 meters
per side.
Its flexible, modular design allows integration
across all small, medium, and large diameter
UUVs rated to 300 1000 or 6000m depths.
Kraken SAS Image
Ocean services provider DeepOcean has
acquired Shelf Subsea, an independent provider
of subsea services with a strong position in the
eastern hemisphere.
“DeepOcean and Shelf Subsea offer similar
services, but have distinct geographical
strongholds that complement each other. When
combined, we will provide customers worldwide
with access to a comprehensive pool of expertise
and capabilities. says Øyvind Mikaelsen, CEO of
DeepOcean.
The combined group will have approximately
1,800 employees and generate more than USD 1
billion in revenue.
Eelume has acquired the Trondheim-developed
underwater hyperspectral imaging technology
Ecotone, bringing together two Norwegian
technologies to unlock new possibilities for
ocean observation and environmental insight to
discover more.
Eelume, known for its autonomous, bio-inspired
and highly manoeuvrable underwater vehicles is
strengthening its capabilities by integrating
Ecotone’s advanced hyperspectral imaging
systems.
The acquisition paves the way for long-term,
intelligent monitoring of the marine environment
— essential for industries and ecosystems alike.
From research to real-world impact
Ecotone was founded in 2010 as a spin-off from
the Norwegian University of Science and
Technology (NTNU). Over more than a decade,
the company has developed underwater sensors
capable of mapping and characterising marine
habitats with exceptional precision.
DEEPOCEAN: SHELF SUBSEA
EELUME:ECOTONE
KRAKEN ORDER
NEWS
13
1-6 MWh Energy
Storage Systems
Intervention
Batteries
Wave Energy & Wind
Battery Storage
Subsea UPS &
Converter
AUV / Drone
Docking Station
Vehicle Batteries
API17F
Ocean Power & Monitoring
Transform into the cost-efficient and sustainable future
14
Sonardyne has been selected
through a competitive bidding
process to deliver baseline
environmental monitoring
services for the UK’s first
offshore carbon capture and
storage (CCS) site.
The company has been
contracted by the Northern
Endurance Partnership (NEP),
the developer of the onshore
and offshore infrastructure
needed to transport carbon
dioxide (CO2) from carbon
capture projects across Teesside
and the Humber – collectively
known as the East Coast Cluster
- to secure storage under the
North Sea. The infrastructure is
crucial to achieving net zero in
the UK’s most carbon intensive
industrial regions.
Sonardyne will provide
environmental monitoring, in
SEABED MONITORING LANDERS AND
ASSOCIATED SERVICES FOR NEP PROJECT
1000TH TESTING TOOL
the form of seabed landers, at key
locations above and around the
subsurface Endurance site – the
saline aquifer located 145km off
the coast of Teesside where
captured CO2 will be stored.
Monitoring of the site will begin in
the summer of 2026 to provide
baseline data for a duration of
two years before the
transportation and storage of
captured CO2 commences. The
seabed landers will be equipped
with Sonardyne’s Edge data
processing application, power
management and acoustic
through-water communications to
enable long-term, remote battery-
operated deployment.
Each lander will also contain a
suite of hardware including
Sonardyne’s Origin 600 ADCP,
Wavefront’s passive sonar array
and multiple third-party sensors.
Together, this technology can
detect small changes in water
chemistry across a wide area,
while the data can be harvested,
without retrieving the lander,
using wireless subsea acoustic
communication techniques.
Monitoring is a key activity for
offshore CCS developments
to verify safe containment
of CO2 within the
reservoir, provide
reassurance to
stakeholders and foster
public confidence in this
greenhouse gas
abatement process.
Sonardyne will
provide seabed
landers at key
locations around
the subsurface
Endurance site.
C-Kore Systems is celebrating
an exciting milestone with the
deployment of their 1000th
subsea testing tool, to Australia.
This significant achievement
was marked by the mobilisation
of the C-Kore tools to an
Australian offshore energy
project for one of their key
customers, Fugro.
Australia is one of C-Kore's
largest markets, where their
tools are helping oil and gas
operators save money by
simplifying their subsea testing
operations.
C-Kore's subsea testing tools
have quickly become a game
changer in the offshore oil and
gas industry, earning
widespread recognition with
both operators and contractors
for their quick and accurate
results. The ease of use of the
battery powered autonomous
units means specialised
offshore personnel are not
required to accompany the
units, equating to big cost
savings on offshore testing
campaign.
NEWS
SONARDYNE
C-KORE
C-Kore receiving the King’s Award
15
Sentinel
The global oceanographic
community is invited to gather in
Woods Hole this autumn for the
SLOCUM GLIDER USER'S
CONFERENCE, taking place
October 7-9, 2025. This three-
day event will bring together
Slocum glider users, marine
scientists, engineers, and
dignitaries for a collaborative
exchange of knowledge,
innovation and mission
collaboration.
The conference will culminate in
the official launch of the Sentinel
Mission on October 10, featuring
REDWING, the first autonomous
underwater glider that will
embark on the first ever AUV
mission to autonomously
circumnavigate the globe.
"This conference is more than a
technical gathering—it's a
celebration of innovation and a
launchpad for a mission that will
redefine what's possible in ocean
exploration," said Shea Quinn,
Slocum Glider Product Line
Manager.
CONFERENCE HIGHLIGHTS
●Expert Panels & Technical
Sessions on topics such as long-
endurance missions, passive
acoustic monitoring, storm
gliders, and under-ice operations.
●Advanced Training with sensor
vendors and glider specialists.
●Live Presentation and Poster
Sessions from the global glider
community.
●Networking Opportunities with
NOAA and WHOl leadership,
state officials, and academic
researchers.
The Sentinel Mission: A Global
First
The Sentinel Mission, a
collaboration between Teledyne
Webb Research and Rutgers
University to complete the first-
ever global circumnavigation with
an autonomous underwater
vehicle, is supported by NOAA,
the UN Ocean Decade, and the
Marine Technology Society. The
mission will launch from Woods
Hole on October 10, 2025, with
the deployment of REDWING, a
specially outfitted Slocum
Sentinel Glider.
The mission aims to:
●Demonstrate cutting-edge
oceanographic technology
●Promote STEM education and
student-led research
●Support global ocean
monitoring and climate science
Rutgers undergraduate students
are actively involved in planning
the glider's route, accounting for
ocean currents, recharge stops,
and geopolitical considerations.
The mission will also feature a live
online flight viewer, branded
outreach campaigns, and
educational content to engage
the public worldwide.
TELEDYNE MARINE TO HOST SLOCUM
GLIDER USER’S CONFERENCE
16
The new Teledyne Valeport pH
sensor developed in
collaboration with ANB Sensors,
introduces a cutting-edge, self-
calibrating solution for robust,
reliable pH measurements in
ocean monitoring. This
innovative sensor redefines how
pH is measured over extended
periods of time, offering a
powerful alternative to
traditional glass electrode
technology.
Traditionally, pH measurements
have used glass electrode
technology. While highly
accurate, this method requires
frequent instrument calibration
to prevent reference electrode
drift, resulting in lengthy sensor
downtime. Glass electrodes are
also more fragile and require
storage in very specific
conditions.
Unlike conventional pH sensors,
the new Teledyne Valeport pH
leverages Teledyne Valeport’s
respected engineering
expertise and ANB’s patented
calibration-free technology to
Teledyne Valeport
pH sensor
SELF-CALIBRATING PH SENSOR
create a leading pH sensor.
This advanced sensor is self-
calibrating, preventing
instrument downtime, reducing
calibration-related costs, and
significantly extending
deployment periods. The sensor
is also highly durable and easy to
store, making it a resilient and
superior alternative to traditional
pH sensors.
Engineered for versatility, the
sensor is rated to depths of up
to 1250m and delivers
exceptional accuracy of ±0.1 pH.
Its rugged titanium housing
ensures reliability in harsh marine
environments, making it suitable
for a wide range of applications,
including: fixed site monitoring,
buoys and frames, ROVs, AUVs
and ASVs.
What sets the Teledyne Valeport
pH sensor apart is its
combination of simple
operation, robustness, and ease
of handling and storage. It is
particularly well-suited for long-
term deployment scenarios due
to several unique features:
●
Robust solid-state
technology - for durability in
extreme marine conditions
●
Reference drift
compensation - to maintain
accuracy over time
●
Calibration-free
operation - in situ self-calibration
eliminates the need for frequent
recalibrations
●
Bio foul solution - a low
concentration of biocide is
produced at the sensor head to
keep the transducer clean and
ensure reliable data collection
●
More responsive
temperature compensation -
improving measurement accuracy
in varying ocean conditions
Designed with practicality in
mind, the Teledyne Valeport pH
sensor features Valeport’s
signature titanium housing and
measures 204mm in length with a
diameter of 47mm. It operates on
9-28V DC power with a
consumption of <32 mA @12 V
DC and weighs less than 1 kg in
air.
NEWS
TELEDYNE VALEPORT
17
SPRINT-Nav
The ultimate solution for
underwater navigation
Imagine a navigation system that delivers unparalleled precision, effortless integration
and reliable performance for every operation. The SPRINT-Nav family offers a
class-leading, all-in-one subsea navigation solution for all marine robotics and
autonomous vehicles.
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Sonardyne.com
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Teledyne Marine recently
unveiled its Compact
Navigator, a ground-breaking,
ultra-compact and advanced
autonomous integrated
navigation solution that
redefines performance in a
small form-factor.
“Extreme optimisation on size,
weight, power, performance,
and functionality makes the
new Compact Navigator
revolutionary,” said Rolf
Christensen, Head of Product
Management at Teledyne
Marine.
"It’s ultra-compact design,
high-accuracy, premium
titanium construction, and
ability to operate in
challenging acoustic
environments make it the new
‘go-to’ choice for operators
requiring reliable, high-
performance navigation in both
subsea and surface
applications.
It is Ideal for small vehicles, it
enables inspection and survey
applications not previously
achievable."
Available in two depth-rated
versions—4000m and 300m—
the Compact Navigator has
been developed using unique
Teledyne Marine technology by
navigation experts and in
consultation with key ROV and
AUV companies.
KEY ADVANTAGES
• World's Smallest High-
Accuracy Navigator – Measures
COMPACT NAVIGATOR
only Ø114mm x 135mm, fitting
within the volume of most
standalone DVLs, while still
outperforming much larger
navigation systems
• Ultra-Low Power Consumption
– Uses less than 7W, a
breakthrough in energy
efficiency. Allowing missions to
last longer and extending the
time before a vehicle needs to
surface.
• Seamless Integration – A single
lightweight unit with minimal
cabling simplifies installation,
reduces costs, and frees up
valuable space on compact
vehicles.
The Compact Navigator’s fully
autonomous operation
eliminates the need for external
aiding or operator intervention,
ensuring ease of use. It also
features comprehensive
connectivity, with power,
Ethernet, dual triggers, and serial
connections accessible via a
single connector.
The advanced phased array DVL
technology enhances
performance while maintaining
its compact size, allowing the
instrument to sit flush with an
AUV or ship hull.
Designed for versatility, the
Compact Navigator supports a
wide range of applications, from
ROVs and AUVs to shallow water
surface navigation, GNSS-denied
environments, and dynamic
positioning for surface vehicles.
It combines true North-seeking
gyrocompass-grade
performance with a rich WebUI
for integration, operation, and
troubleshooting. With a factory-
calibrated design and battery
backup option, it ensures high
reliability in demanding
environments.
Unlike traditional surface
navigation systems, the Compact
Navigator operates
independently of GNSS, making
it resistant to jamming or signal
loss. This breakthrough is
particularly crucial for shallow
water navigation, where
traditional GNSS-dependent
systems can fall short.
As autonomous surface vehicles
become more prevalent, a
robust and independent
navigation solution like the
Compact Navigator becomes
increasingly vital.
NEWS
TELEDYNE MARINE
19
STINGRAY
Dynamic Load Monitoring has
launched a new Acoustic
Positioning Grapnel called
Stingray.
It is positioned at the rear of a
train of multiple grapnels and
towed behind the vessel when a
pre-lay grapnel run (PLGR) is
being undertaken. It is located
the furthest away from the ship’s
stern.
It uses acoustics to send a signal
to a vessel towing the train to
communicate where it is on the
seabed.
Stingray is 1343mm long and
308mm high with the beacon
closed; with it open, it is 473mm
high. The main body is 500mm
wide and, depending on what
type of stabiliser is fitted, it is
900mm or 1500mm wide.
While there is only one body size,
there will be options in that
customers will be able to fit
different sized stabilisers to suit
deployment chutes. There will also
be the ability to fit different
manufacturers’ ultra-short baseline
(USBL) beacons to meet the
client’s preferences and what
receiver is already fitted onto the
vessel.
The acoustic grapnel is
manufactured from high-strength
structural steel and covered with a
special marine paint.
Martin Halford, managing director
at DLM, said: “The overall shape
of it is based on the front skid of
our wheeled detrenching
grapnel.
“As a grapnel train is being
towed it is often just assumed
that the train falls in line with the
direction and movement of the
vessel and follows the same path.
However, this is not necessarily
the case due to the length of the
tow line and also the length of
the train; the whole assembly can
wander and in some cases the
grapnel train could be outside of
the planned route.”
ACOUSTIC CORER:
REVOLUTIONARY 3D
SUB-SEABED INSIGHT
Kraken Robotics | Transforming Subsea Intelligence
www.krakenrobotics.com
Providing 3D visualization and live rendered
data, Kraken’s Acoustic Corer identifies
geohazards, stratigraphy, and boulders as
small as 0.2 m, ensuring efficient, risk-free
offshore foundation design and installation.
DLM
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and the external water pressure,
preventing damage to the box
due to pressure differentials.
• MacArtney has also launched
its new SubConn Micro Circular
9-contact connector. With
enhanced features designed to
minimise signal interference,
this connector ensures optimal
data accuracy and efficient
underwater operations.
“The standard 8-contact
connector is very good for high
bandwidth data, even up to
gigabit Ethernet,“
said Jørgensen.
“Over recent years, however, we
have recognised that the
instruments currently being
developed, provide increasingly
more data and for some, even
one gigabit is not enough
anymore.
“8-contact connectors are
typically used for signal
transmission, and some users
have requested an additional
contact for enhanced security.
The ninth contact in the new
connector is intended for a
screen, providing an extra layer
of data protection and ensuring
higher bandwidth.
“We have been running tests
and found that it is possible to
get 10 gigabit of data and now,
we are establishing what kind of
cable length this will work with,
targeting harness cables for
high bandwidth sensors such as
4K cameras.”
MONITORING TRIPOD
MacArtney has designed a tripod
assembly accommodating the
growing focus on innovative and
efficient solutions for subsea
infrastructure surveillance,
spanning defence,
communication, energy
production, scientific research,
and environmental monitoring.
“We intend to use these tripods
as a base on which to attach a
variety of sensors,” said Lars
Jørgensen, Head of Product
Management. “This would
typically include a number of
hydrophones in order to listen
out for underwater vehicles,
divers that shouldn’t be there or
possibly anchors dragging along
the seabed.
“It is suitable for
attaching
hydrophones from
any manufacturer.
MacArtney
tripod
assembly
We are currently working with a
new model from a Dutch
company: Optics11. These are
purely fibre optic, and as such,
there are no electronics. A
benefit of this is that signals can
travel great distances.
“Aside from the exhibited tripod,
we also construct other
geometrical frames to meet
specific sensor requirements. We
envisage the tripod and frames as
a suitable mount for subsea
cameras, sonars, oceanography
and seismic sensors or ADCP
systems.
“An important part of the
arrangement is employing our
connectivity and data acquisition
expertise. On this particular
tripod, we have also incorporated
a junction box as well as one of
our latest multiplexers.
The MacArtney oil-filled junction
box is a robust, reliable junction
box designed for underwater
applications. It is specially
engineered to withstand
harsh marine
environments and
ensure reliable
electrical connections.
The oil-filled
environment inside the
junction box
helps equalise
the pressure
between the
internal
components
NEWS
MACARTNEY