Merak-M1 FOG INS System with 3.5kg Weight and 161×153×123mm Dimensions for Marine Navigation
The Merak-M1 marine inertial navigation system employs RLG/FOG gyros and quartz accelerometers in a strapdown configuration. Its high-speed processor delivers real-time navigation solutions, supporting multiple operational modes including inertial, GNSS, and velocity modes to provide comprehensive navigation data for various vessel types.
| Parameter | Specification |
|---|---|
| Series | Maritime Inertial Navigation System (INS-M) |
| Type | Merak-M1 |
| Accelerometer Bias Repeatability (1σ) | ≤30μg |
| Accelerometer Scale Factor Accuracy (1σ) | ≤30ppm |
| Gyro Bias Repeatability (1σ) | ≤0.005°/hr |
| Gyro Scale Factor Accuracy (1σ) | ≤20ppm |
| Gyro Random Walk (1σ) | ≤0.002°/√hr |
| Parameter | Specification |
|---|---|
| Angular Rate | ≥±400°/sec |
| Angular Acceleration | 100000°/sec² |
| Acceleration | ＞25g |
| Speed Accuracy (Pure Inertia) | ≤1.2kn, RMS |
| Speed Accuracy (GNSS Combination) | ≤0.4kn, RMS |
| Position Accuracy (Pure Inertia) | ≤1nm/1h, CEP |
| Position Accuracy (INS/DVL Combination) | ≤0.3%D, RMS |
| Heading Accuracy (Pure Inertia) | ≤0.05°sec(L), RMS |
| Heading Accuracy (INS/GNSS Combination) | ≤0.02°, RMS |
| Pitch & Roll Accuracy (Pure Inertia) | ≤0.02°, RMS |
| Pitch & Roll Accuracy (INS/GNSS Combination) | ≤0.01°, RMS |
- Startup time: ≤10 seconds
- Alignment time: ≤15 minutes
- Input/output: 3 RS422 full-duplex serial ports, 1 100M Ethernet port
- Angular attitude: Any orientation capability
- Position accuracy with GNSS: Better than GNSS standalone performance
| Parameter | Specification |
|---|---|
| Power Consumption | ＜18W |
| Dimensions (L×W×H) | 161×153×123mm |
| Weight | 3.5kg |
| Operating Temperature | -40℃ to 60℃ |
| Shock Resistance | 15g, Half-sine wave 11ms |
| Vibration Resistance | 20-2000Hz, 6.06g |
| Input Voltage | DC24V (±25%) |
| Cooling Method | Conduction to mounting plate |
| MTBF | ＞20000 hours |
The Merak-M1 system delivers exceptional reliability in demanding maritime conditions with MTBF exceeding 20000 hours. Its robust construction withstands extreme environmental factors including wide temperature ranges, high shock and vibration levels, ensuring consistent performance for critical marine navigation applications.
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