Document:
Liocrebif's LKF-SX-H5-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.
| Fiber Optic Gyroscope (FOG) | |
| Bias Stability (room temp.) | ≤0.08° /h,1σ |
| Scale Factor Nonlinearity | ≤50ppm, 1σ |
| Range | ±400° /s |
| Accelerometer | |
| Bias Stability | ≤50ug,1σ |
| Scale Factor Nonlinearity | ≤100ppm,1σ |
| Range | ±8g |
| Navigation Accuracy | |
| Positioning Accuracy (pure inertial) | ≤5nm/1h |
| Positioning Accuracy (GNSS integrated) | Better than the accuracy of the connected GNSS position information |
| Positioning Accuracy (DVL integrated) | 1.0% of distance traveled (CEP) |
| Velocity Accuracy | ≤0.1m/s(RMS) |
| Heading Accuracy (DVL/USBL/GNSS integrated) | ≤0.3°secφ(RMS) |
| Horizontal Attitude Accuracy (DVL/USBL/GNSS integrated) | ≤0.02°(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)≤4.0kg (6000m)≤5.5kg |
| Dimensions (mm) | ≤Φ139mm*150mm |
| Electrical Characteristics | |
| Input Voltage | DC 24V (20-32 V) |
| Power Consumption | Less than 20 W |
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