Ship Motion Control MRU Alternative

Looking for an Alternative to Ship Motion Control MRUs?

Over 1400 Norwegian Subsea Motion Reference Units are in operation world-wide on over 700 vessels, floating and subsea structures.

Alternatives to Ship Motion Control MRUs

Norwegian Subsea's Motion Reference Units are designed for motion measurement applications in marine environments. If you are considering alternatives to Ship Motion Control MRUs, explore the technical capabilities and integration options of our MRU solutions.

Looking for a replacement for an existing Ship Motion Control MRU?

Alternatives for Ship Motion Control SMC-00 and SMC-10 range

MRU Marine & Subsea

MRU Marine

Usage area

50 m depth, IP 68

Heave accuracy

5 cm or 5.0%

Roll & Pitch accuracy

30000.05° RMS
60000.02° RMS
90000.01° RMS

Connectors

Lemo or SubConn 8 or SubConn 16

Learn more

MRU Subsea

Usage area

6000 m depth

Heave accuracy

5 cm or 5.0%

Roll & Pitch accuracy

30000.05° RMS
60000.02° RMS
90000.01° RMS

Connectors

SubConn 8

Learn more

Irregular heave motions — Real sea conditions - irregular heave motions

Tested and validated in real sea conditions

At sea, vessels experience irregular and coupled motions, not just the regular sine wave motions used in laboratory tests. That is why we validate our MRUs in real, irregular sea conditions as well as in the lab.

Read more about how we validate our MRU

MRU/VRU 6000 Marine, an alternative to SMC-106, SMC-107 and SMC-108

The SMC-108 is Ship Motion Control's high-accuracy motion reference unit, measuring roll, pitch and heave. The SMC-107 is the roll-and-pitch-only version, and the SMC-106 is the heave-only version.

The MRU 6000 Marine is an alternative for most SMC-106 and SMC-108 applications, and the VRU 6000 Marine for most SMC-107 applications.

Why the MRU 6000 Marine?

High roll and pitch accuracy: 0.02° RMS, valid across the full range of angles.
Wide operating temperature range: −40 to +85 °C.
High MTBF: 100 000 hours.
Compact housing with no mounting limitations.

High accuracy and reliable

MRU / VRU 6000 Marine

Roll and pitch accuracy valid for operation without any restriction in angles

Roll & Pitch accuracy0.02° RMS
Heave accuracy5 cm / 5 %
Operating temperature range−40 to +85 °C
MTBF100 000 hours

MRU/VRU 3000 Marine, an alternative to SMC-007 and SMC-008

The SMC-008 is Ship Motion Control's standard motion reference unit, measuring roll, pitch and heave. The SMC-007 is the roll-and-pitch-only version.

The MRU 3000 Marine is an alternative for most SMC-008 applications, and the VRU 3000 Marine for most SMC-007 applications.

Why the MRU 3000 Marine?

High roll and pitch accuracy: 0.05° RMS, valid across the full range of angles.
Wide operating temperature range: −40 to +85 °C.
High MTBF: 100 000 hours.
Compact housing with no mounting limitations.

High accuracy and reliable

MRU / VRU 3000 Marine

Roll and pitch accuracy valid for operation without any restriction in angles

Wide operating temperature range

Roll & Pitch accuracy0.05° RMS
Heave accuracy5 cm / 5 %
Operating temperature range−40 to +85 °C
MTBF100 000 hours

Retrofit of your MRU

Our MRUs use the latest generation of high-end MEMS sensors with high long-term stability, which makes them well suited for retrofit installations.

Typical retrofit applications are AHC, dynamic positioning and helideck motion monitoring.

You can replace your existing MRU yourself, or use one of our retrofit partners to do the installation for you, subject to vessel class and system integrator requirements.

Read more about the retrofit process

Trusted by industry leaders

Over 1400 Norwegian Subsea Motion Reference Units are in operation world-wide on over 700 vessels, floating and subsea structures.

Some selected customer references.

Where our MRUs are used

What our customers say

"The whole industry is welcoming these MRUs."

Johnny Rabben, CEO, ShoreConnection

Read case study

"We can get a Norwegian Subsea unit that retains adequate precision through the planned life of our systems without the shipowner having to go through the cost or hassle of returning the unit to shore for recalibration every few years."

Karianne Pran, Director of Engineering, Light Structures

"They are rock solid. Many Norwegian Subsea MRUs have been running 24/7 inside Miros products for up to eight years without issue, producing real-time data every second."

Jonas Røstad, Chief Commercial Officer, Miros

Read case study

"We have tried similar MRUs and Norwegian Subsea was the clear choice, not only for the quality of data, but also the ease of integration"

Tuna Sener, Business development manager

Read case study

Ship Motion Control and its product names are trademarks of their respective owner. Norwegian Subsea is not affiliated with or endorsed by Ship Motion Control.

Looking for an Alternative to Ship Motion Control MRUs?

Alternatives to Ship Motion Control MRUs

MRU Marine & Subsea

MRU Marine

Usage area

Heave accuracy

Roll & Pitch accuracy

Connectors

MRU Subsea

Usage area

Heave accuracy

Roll & Pitch accuracy

Connectors

Tested and validated in real sea conditions

MRU/VRU 6000 Marine, an alternative to SMC-106, SMC-107 and SMC-108

Why the MRU 6000 Marine?

High accuracy and reliable

MRU / VRU 6000 Marine

MRU/VRU 3000 Marine, an alternative to SMC-007 and SMC-008

Why the MRU 3000 Marine?

High accuracy and reliable

MRU / VRU 3000 Marine

Retrofit of your MRU

Trusted by industry leaders

What our customers say

Contact us

Looking for an Alternative to Ship Motion Control MRUs?

Alternatives to Ship Motion Control MRUs

MRU Marine & Subsea

MRU Marine

Usage area

Heave accuracy

Roll & Pitch accuracy

Connectors

MRU Subsea

Usage area

Heave accuracy

Roll & Pitch accuracy

Connectors

Tested and validated in real sea conditions

MRU/VRU 6000 Marine, an alternative to SMC-106, SMC-107 and SMC-108

Why the MRU 6000 Marine?

High accuracy and reliable

MRU / VRU 6000 Marine

MRU/VRU 3000 Marine, an alternative to SMC-007 and SMC-008

Why the MRU 3000 Marine?

High accuracy and reliable

MRU / VRU 3000 Marine

Retrofit of your MRU

Trusted by industry leaders

What our customers say

Contact us