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The LKF-MSN302 MEMS North Finder is a highly reliable and cost-effective six-axis MEMS inertial sensor. This advanced system integrates high-performance MEMS gyroscopes and accelerometers, enabling autonomous north finding and level attitude measurement under both static and dynamic base conditions while maintaining long-term attitude accuracy. Ideal for autonomous north finding and attitude measurement in confined spaces including underwater and downhole applications.
| MEMS Gyroscope | |
| Range (°/s) | ±200 |
| Bias @ Full temp. (°/h, 3σ) | ≤0.3 |
| Bias Stability (°/h, 10s smoothing) | ≤0.1 |
| Bias Instability (°/h, Allan, typ) | ≤0.02 |
| Bias Repeatability (°/h) | ≤0.1 |
| Angular Random Walk (°/√h) | ≤0.01 |
| Scale Factor Nonlinearity (ppm) | ≤100 |
| Cross-Coupling (rad) | ≤0.001 |
| Bandwidth (Hz) | ≥50 |
| MEMS Accelerometer | |
| Range (g) | ±10 |
| Bias @ Full temp. (mg, 3σ) | ≤1 |
| Bias Stability (ug, 10s smoothing) | ≤20 |
| Bias Instability (ug, Allan, typ) | ≤10 |
| Bias Repeatability (ug) | ≤20 |
| Velocity Random Walk (m/s/√h) | ≤0.02 |
| Scale Factor Nonlinearity (ppm, ±1g) | ≤100 |
| Cross-Coupling (rad) | ≤0.001 |
| Bandwidth (Hz) | ≥50 |
| Navigation Accuracy | |
| North Finding Accuracy (°, 1σ) | ≤0.5secL (L for latitude) |
| Attitude Accuracy (°, 1σ) | ≤0.05 |
| Physical Characteristics | |
| Power Supply (V) | 5~12 (Ripple ≤ 100mV) |
| Steady-state Power (W) | ≤2 |
| Startup Time (s) | ≤2 |
| Update Rate (Hz, max) | 200 |
| Dimensions (mm*mm*mm) | 47*47*35.5 |
| Weight (g) | 100±10g |
| Operating Environment | |
| Operating Temp. (°C) | -40～+85 |
| Storage Temp. (°C) | -55～+85 |
| Vibration (g, RMS) | 6.06, 20~2000Hz |
| Shock (g) | 500g/1ms |
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