Dubhe-M4 Gyro Quartz Accelerometer Laser Inertial Navigation System INS with 232×186×160mm Dimensions and ≤0.01° Heading Accuracy
The Dubhe-M4 laser gyro inertial navigation system utilizes advanced ring laser gyro and quartz accelerometer technology to deliver exceptional navigation accuracy for maritime applications. This system provides real-time heading, roll, pitch, speed, and position data with multiple operational modes including inertial/satellite navigation combination and pure inertial navigation.
| Parameter | Specification |
|---|---|
| Accelerometer Bias Repeatability (1σ) | ≤30μg |
| Accelerometer Scale Factor Accuracy (1σ) | ≤30ppm |
| Gyro Bias Repeatability (1σ) | ≤0.003°/hr |
| Gyro Scale Factor Accuracy (1σ) | ≤3ppm |
| Gyro Random Walk (1σ) | ≤0.001°/√hr |
| Heading Accuracy (INS/GNSS) | ≤0.01°, RMS |
| Pitch & Roll Accuracy | ≤0.01°, RMS |
| Speed Accuracy (INS/GNSS) | ≤0.4kn, RMS |
| Position Accuracy (INS/GNSS) | Better than GNSS |
- High angular rate capability: ≥±400°/sec
- Rapid startup time: ≤10 seconds
- Compact dimensions: 232×186×160mm
- Lightweight design:
- Low power consumption:
- Wide operating temperature: -40℃ to 60℃
- Robust construction with 15g shock resistance
- Multiple interface options: 3 RS422 ports, 1 Ethernet port
- High reliability: MTBF >20000 hours
The system supports various navigation modes including pure inertial navigation, INS/GNSS combination, and INS/DVL combination, providing flexibility for different maritime platform requirements. With alignment time ≤15 minutes and comprehensive environmental tolerance, the Dubhe-M4 ensures reliable performance in demanding marine conditions.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.