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MRU 5

MRU 5

The MRU 5 is the ideal sensor for motion compensation of multi-beam echo sounders, offshore cranes, hydroacoustic positioning systems and dynamic motion monitoring of roll, pitch and linear accelerations on offshore structures. The MRU 5 incorporates three highly accurate accelerometers and three high-end Kongsberg Seatex developed Micro-Electro-Mechanical-Structures (MEMS) gyros of type MRG (MRU Rate Gyro). The MRG gyro combines low noise, excellent bias stability and gains accuracy.

Description

The MRU 5 is the ideal sensor for motion compensation of multi-beam echo sounders, offshore cranes, hydroacoustic positioning systems and dynamic motion monitoring of roll, pitch and linear accelerations on offshore structures. The MRU 5 incorporates three highly accurate accelerometers and three high-end Kongsberg Seatex developed Micro-Electro-Mechanical-Structures (MEMS) gyros of type MRG (MRU Rate Gyro). The MRG gyro combines low noise, excellent bias stability and gain accuracy. Very high reliability is achieved by using solid state sensors with no rotational or mechanical wearout parts.

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Specifications

General

Height [m]

0.014

Material

Anodised Aluminium

Environmental

Max. operating temperature [°C]

55

Splashproof casting

Y

Water resistant casting

N

Vibration and operating shock tolerance

IEC 60945/EN 60945

Electromagnetic compatibility

IEC 60945/EN 60945

Mounting orientation

No limitation to mounting orientation

Min. operating temperature [°C]

-5

Power

Min. Voltage (DC)

10

Max. Voltage (DC)

36

Power consumption [W]

12

Roll and Pitch Output

Roll and pitch measurement

Y

Angle accuracy static in ° [RMS]

0.02

Angle accuracy dynamic in ° [RMS]

0.02

Resolution angle [°]

0.001

Angular roll/pitch range [°]

360

Angular rate range [°/s]

150

Interfaces and Data

Ethernet port

Y

RS232 output

Y

RS422 output

Y

Other output ports

Analog,

Data output rate

200 Hz

Data output protocols/formats

MRU normal, Atlas Fansweep, NMEA proprietary, TSS1, Sounder, Seapath binary 23, EM3000 & PFreeHeave®. The MRU 5 outputs roll, pitch and yaw angles and corresponding angular rate vectors. The unit outputs relative (dynamic) heave, surge and sway positions, velocities and accelerations in adjustable frames. Output protocols for commonly used survey equipment are available on two individually configurable serial lines and Ethernet/UDP.

Heave Output

Resolution heave [m]

0.01

Max. output heave range [m]

100

Output period real time [s]

25

Heave accuracy real time [%]

5

Output period delayed [s]

50

Heave accuracy delayed [%]

2

Acceleration Output

Acceleration measurement

Y

Acceleration range m/s2

60

Acceleration noise m/s2 RMS

0.002

Acceleration accuracy m/s2 RMS

0.01

Documents

Brochure
migrationkdfp6u.pdf
440.98 KB
migrationkdfp6u.pdf

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