High-Precision MEMS North Finder with Compact Size
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.
- High performance with compact size
- Full-temperature calibration compensation (-40°C to +85°C)
- 100% domestic devices
- Strong resistance to harsh mechanical environments
- Software online upgrade capability
- Zero-velocity heading hold
- Configurable north-finding time
- Installation error angle correction function
- Orientation in complex environments such as mines
- Man-portable north finding
- Oil well inclinometer north finding
- Pipeline measurement
- Underwater navigation
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Gyroscope |
|
|
Range (°/s) |
±200 |
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Bias @Full temp.(°/h,3σ) |
≤0.3 |
|
Bias Stability (°/h,10ssmoothing) |
≤0.1 |
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Bias Instability (°/h,allan,typ) |
≤0.02 |
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Bias Repeatability (°/h) |
≤0.1 |
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Angle Random Walk (°/√h) |
≤0.01 |
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Scale Factor Nonlinearity (ppm) |
≤100 |
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Cross-Axis Coupling (rad) |
≤0.001 |
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Bandwidth (Hz) |
≥50 |
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Accelerometer |
|
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Range (g) |
±10 |
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Bias @Full temp. (mg, 3σ) |
≤1 |
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Bias Stability (ug, 10s smoothing) |
≤20 |
|
Bias Instability (ug, Allan, typ) |
≤10 |
|
Bias Repeatability (ug) |
≤20 |
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Velocity Random Walk (m/s/√h) |
≤0.02 |
|
Scale Factor Nonlinearity (ppm, ±1g) |
≤100 |
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Cross-Axis Coupling (rad) |
≤0.001 |
|
Bandwidth (Hz) |
≥50 |
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Navigation Accuracy |
|
|
Auto north finding accuracy (°, 1σ) |
≤0.5secL(L represents the local latitude) |
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Attitude accuracy (°, 1σ) |
≤0.05 |
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Physical Characteristics |
|
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Power Supply (V) |
5~12(Ripple ≤100mV) |
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Steady-State Power (W) |
≤2 |
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Startup Time (s) |
≤2 |
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Update rate (Hz, max) |
200 |
|
Dimensions (mm×mm×mm) |
47×47×35.5 |
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Weight (g) |
100±10g |
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Operating Environment |
|
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Operating Temperature (°C) |
-40～+85 |
|
Storage Temperature (°C) |
-55～+85 |
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Vibration (g, RMS) |
20~2000HZ,6.06 |
|
Shock (g) |
500g/1ms |
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