High-Precision MEMS North Finder with ≤0.1 °/h Bias
Liocrebif's LKF-SX-MG302KNS MEMS north finder is a highly reliable, cost-effective six-axis MEMS inertial unit integrating high-performance three-axis gyroscopes and accelerometers to measure angular and linear motion. Full-temperature bias, scale factor, non-orthogonality, and acceleration-related compensation—combined with high-speed sampling and fine static/dynamic correction—maintains high measurement accuracy over extended operation. Vibration-isolated and sealed, it operates stably in harsh environments, delivering a low-cost, high-reliability solution with customizable precision and flexible hardware/software configurations for inertial navigation, attitude stabilization, and measurement applications.
- High-performance, compact design
- Lightweight construction with low power consumption
- 100% domestic components
- -45°C to +80°C full-temperature compensation
- 4 kHz high-speed sampling
- Mechanically rugged construction
- Online software upgrade capability
- Auto ZUPT maintains heading accuracy
- Orientation in mines and harsh environments
- Soldier north-finding systems
- Oil well gyro-surveying
- Pipeline surveying
- Underwater navigation
Parameter | Specifications |
MEMS Gyroscope | |
Range (°/s) | ±200 |
Bias (°/h, 1σ) | ≤0.1 |
Bias Stability (°/h, 10s avg.) | ≤0.1 |
Bias Instability (°/h, Allan) | ≤0.02 |
Bias Repeatability (°/h) | ≤0.1 |
Angular Random Walk (°/√h) | ≤0.01 |
Scale Factor Nonlinearity (ppm) | ≤100 |
Cross-Axis Coupling (rad) | ≤0.001 |
Bandwidth (Hz) | ≥50 |
MEMS Accelerometer | |
Range (g) | ±20 |
Bias (mg, 1σ) | ≤0.5 |
Bias Stability (µg, 10s avg.) | ≤50 |
Bias Stability (µg, Allan) | ≤30 |
Bias Repeatability (µg) | ≤50 |
Velocity Random Walk (mm/s/√h) | ≤30 |
Scale Factor Nonlinearity (ppm) | ≤500 |
Cross-Axis Coupling (rad) | ≤0.001 |
Bandwidth (Hz) | ≥50 |
Navigation Accuracy | |
North-Finding Accuracy (°, 1σ) | 0.5 sec L (L denotes latitude) |
Horizontal Attitude Alignment Accuracy (°, 1σ) | 0.15 |
Heading Holding Accuracy (°, 1σ) | 0.5°*h |
Horizontal Attitude Holding Accuracy (°, 1σ) | 0.2°*h |
Attitude Tracking Measurement Accuracy (°, 1σ) | 0.1 |
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