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SOCIETY FOR

UNDERWATER TECHNOLOGY

Vol 19 No3

Editor: John Howes

John@ut-2.com

+44 7859905550

Editorial

Zoltan Vinegar

Research

M Hamilton Perry

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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

18

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

20

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

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