6000m Rated FOG INS with ≤0.007°/h Gyro Bias
Liocrebif's LKF-SX-N01-UW FOG Inertial Navigation System is a new-generation, pressure-resistant strapdown INS built on fiber optic gyroscope technology. Comprising a three-axis integrated FOG, three-axis accelerometers, and a dedicated computation unit, it autonomously measures the carrier's full 6-DOF motion.
By supporting tight integration with satellite navigation, Doppler velocity log, USBL, and other inertial units through advanced navigation algorithms, it outputs high-precision position, velocity, heading, attitude, angular rate, and heave data.
- Maintenance-free solid-state design
- Any-angle rotation capability
- Multi-source fusion ready
- Fast start-up at sea
- Compact, lightweight, low power consumption
- Rated to 6000 m underwater
- AUV / ROV systems
- Manned & deep-sea submersibles
- Shipborne hydrographic survey
- Underwater positioning & attitude reference
- Surface vessel backup navigation / attitude
|
Parameter |
Specifications |
|
Fiber Optic Gyroscope (FOG) |
|
|
Bias Stability (room temp.) |
≤0.007° /h,1σ |
|
Scale Factor Nonlinearity |
≤50ppm, 1σ |
|
Range |
±400° /s |
|
Accelerometer |
|
|
Bias Stability |
≤30ug,1σ |
|
Scale Factor Nonlinearity |
≤100ppm,1σ |
|
Range |
±8g |
|
Navigation Accuracy |
|
|
Positioning Accuracy (pure inertial) |
≤0.8nm/1h |
|
Positioning Accuracy (GNSS integrated) |
Better than the accuracy of the connected GNSS position information |
|
Positioning Accuracy (DVL integrated) |
0.3% of distance traveled (CEP) |
|
Velocity Accuracy |
≤0.05m/s(RMS) |
|
Heading Accuracy (DVL/USBL/GNSS integrated) |
≤0.05°secφ(RMS) |
|
Horizontal Attitude Accuracy (DVL/USBL/GNSS integrated) |
≤0.01°(RMS) |
|
Heave Accuracy |
0.05 m or 0.05 H (whichever is larger; H denotes the amplitude of vertical heave) |
|
Data Update Rate |
100Hz |
|
Startup Time |
≤30 min (at sea) |
|
External Interface |
|
|
RS422 |
3 channels (expandable) |
|
Network |
1 channel |
|
Environmental Adaptability |
|
|
Operating Temperature |
-40°C~+60°C |
|
Depth Rating |
2000 m/6000 m (customizable) |
|
Physical Characteristics |
|
|
Weight |
(2000m)≤18.0kg (6000m)≤25.0kg |
|
Dimensions (mm) |
≤Φ260mm×280mm |
|
Electrical Characteristics |
|
|
Input Voltage |
DC 24V (20-32 V) |
|
Power Consumption |
Less than 20 W |
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