Place of Origin:
China
Brand Name:
Liocrebif
Certification:
GJB 9001C-2017
Model Number:
LKF-MSN300
Document:
Video
The LKF-MSN300 MEMS inertial North Finder employs a strapdown north-finding scheme with integrated MEMS gyroscopes and MEMS accelerometers. This system continuously tracks and measures changes in well deviation angle, tool face, and azimuth angle. With comprehensive full-temperature parameter compensation for bias, scale factor, and non-orthogonality errors across a wide temperature range, it delivers a highly reliable solution for downhole north finding and navigation applications.
| MEMS Gyroscope | |
| Range (°/s) | ±200 |
| Bias @ Full temp. (°/h, 3σ) | ≤0.6 |
| 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) | ±30 |
| Bias @ Full temp. (mg, 3σ) | ≤3 |
| Bias Stability (μg, 10s smoothing) | ≤100 |
| Bias Instability (μg, allan, typ) | ≤50 |
| Bias Repeatability (μg) | ≤100 |
| Velocity Random Walk (m/s/√h) | ≤0.04 |
| Scale Factor Nonlinearity (ppm, ±1g) | ≤100 |
| Cross-Coupling (rad) | ≤0.001 |
| Bandwidth (Hz) | ≥50 |
| Navigation Accuracy | |
| North Finding Accuracy (°, 1σ) | ≤1*sec L (L for latitude) |
| Attitude Accuracy (°, 1σ) | ≤0.2 |
| 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) | Φ31.8 * 85 |
| Weight (g) | 145±10g |
| Operating Environment | |
| Operating Temp. (℃) | -40～+120 |
| Storage Temp. (℃) | -55～+85 |
| Vibration (g, RMS) | 6.06, 20~2000Hz |
| Shock (g) | 500g/1ms |
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