Product Overview
The Merak-G120ST is the flagship discrete fiber optic gyroscope of the family, delivering navigation-grade 0.004°/hr accuracy (100 s, 1σ) and 0.001°/√hr angular random walk. Its 120×120×35 mm module format supports high-performance strapdown navigation, gyrocompassing and precision pointing applications. With a 5.3 g vibration screening profile and 150,000-hour MTBF it is built for harsh, long-life missions.
Key Features
- Navigation-grade accuracy of ≤0.004°/hr (100 s, 1σ)
- Ultra-low angular random walk of ≤0.001°/√hr
- 120×120×35 mm discrete OEM module weighing ≤560 g
- Output update rate up to 4000 Hz over RS-422
- Vibration screening 20–500 Hz at 5.3 g for harsh environments
- MTBF ≥150,000 hours per MIL-HDBK-217-F
Technical Specifications
| Parameter | Specification |
|---|---|
| Dynamic range | ≥ ±400°/s |
| Bias in-run stability | ≤1°/hr |
| Accuracy (100 s, 1σ) | ≤0.004°/hr |
| ARW (angular random walk, 1σ) | ≤0.001°/√hr |
| Bandwidth | ≥ 200 Hz |
| Vibration screening | 20–2000 Hz, 6.06 g |
| Turn-on time | 10 s |
| Output interface | RS-422 |
| Output update rate | 500 Hz – 4000 Hz |
| Operating temperature | -40℃ – +70℃ |
| Storage temperature | -55℃ – +85℃ |
| Power supply / consumption | 5 V / ≤3 W |
| MTBF (MIL-HDBK-217-F) | ≥150,000 hr |
| Weight | ≤560 g |
| Dimensions | 120×120×35 mm |
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