Heave Accuracy (Real – time): 5cm or 5% (whichever is higher)
Heave Accuracy (Delay): 4cm or 5% (whichever is higher)
Acceleration Output
Acceleration Range: ±50m/s²
Power Supply
Supply Voltage: 24V
Communication Interfaces
Serial Ports: 2 RS – 232 or RS – 422
Ethernet Port: 10/100Mbps
Data Output Rate: Up to 200Hz
Timing: <1ms
Environmental Specifications
Temperature Range: – 10°C – +50°C
Humidity Range (Electronic): 0 – 95% non – condensing
Vibration: Complies with relevant standards
Electromagnetic Compatibility: Complies with EMCD
Physical Characteristics
Dimensions: Φ105×140mm (4.134×5.525 inches)
Material: Anodized aluminum
Weight: 2.4kg
Functional Characteristics
Advanced Sensor Technology
Based on 3 – axis Micro – Electro – Mechanical – Structures (MEMS) sensors, it provides accurate and reliable linear acceleration and angular rate measurements. The use of solid – state sensors without rotational or mechanical wear – out parts ensures high reliability.
Superior Data Integration and Output
It can output real – time roll, pitch, and heave measurements, as well as linear acceleration across three axes. The unit outputs heave position and velocity, and the angular rate vectors for roll and pitch. With the latest PFreeHeave algorithm, it can output correct and phase – free heave data.
Optimized Connectivity
Equipped with Ethernet interface and serial lines, it allows for easy data distribution to multiple users on board the vessel. It has a high data output rate and is compatible with various digital I/O protocols, ensuring seamless operation with commonly used survey equipment. The configuration software has selectable communication protocols.
Convenient Configuration
Comes with Windows – based configuration and data presentation software, which allows for defining vector arms from the MRU’s mounted location to the center of gravity (CG) and two configurable monitoring points.
Application Scenarios
Marine Surveying
Used for attitude compensation of single – beam and multi – beam echosounders to ensure the accuracy of seabed mapping.
Underwater Vehicles
Applied to the direction and attitude measurement of autonomous underwater vehicles (AUVs) and remotely operated vehicles (ROVs).
Ship – borne Equipment
Used in the attitude control and damping systems of high – speed ships, as well as for heave compensation of offshore cranes.
Dynamic Positioning
Provides important motion data for the dynamic positioning of ships and marine structures.
Ship Attitude Monitoring
Monitors the attitude of ships in real – time to ensure navigation safety and operational stability.
