DG-20A Dual-Axis Fiber Optic Gyroscope with 1°/h Bias Stability and 64×60×40mm Dimensions
The DG-20A is a high-precision digital closed-loop dual-axis fiber optic gyroscope featuring zero bias stability ≤ 1°/h, compact dimensions of 64×60×40mm, and lightweight construction at ≤ 180g.
| Performance Indicators | Model | DG-20A |
|---|---|---|
| Bias stability (1σ) | Room temperature | 1°/h |
| Bias stability (1σ) | Full temperature | 1°/h |
| Bias repeatability (1σ) | 1°/h | |
| Random walk | 0.1°/h1/2 | |
| Scale factor nonlinearity | 50 ppm | |
| Scale factor asymmetry | 10 ppm | |
| Scale factor repeatability | 20 ppm | |
| Dynamic range | ±500°/s | |
| Dimensions | 64×60×40 mm | |
| Weight | 170±10 g | |
| Power consumption | Normal temperature | 3 W |
| Power supply | +5 V | |
| Communication interface | RS422 |
The DG-20A dual-axis fiber optic gyroscope is a full solid-state high-precision digital closed-loop medium and low uniaxial fiber optic gyroscope integrating optics, mechanics, and electricity. Based on the Sagnac principle, it consists of SLD light source, fiber coupler, photodetector, integrated optical phase modulator, fiber sensing ring, circuit, and structure.
Specifically designed for servo stable platforms, this gyroscope features small volume, high update rate, low delay, low noise, and high bandwidth. It is an ideal choice for low- and medium-precision angular rate sensors and can be widely used in various types of stable platforms.
- Single 5V power supply with extremely low power consumption
- Excellent all-temperature performance
- Rapid startup - reaches nominal specifications immediately without preheating
- Superior environmental adaptability with strong impact and vibration resistance
- Interference fringe recognition technology supporting full dynamic range cold start
- High reliability and no dead zone operation
- Photoelectric platforms
- Radar stabilization platforms
- Satcom on the move systems
- Seekers
- Scouting cameras
- Turn-on time: 3 seconds
- Dynamic range: ±500°/s
- Zero position: ≤1°/h
- Bias stability: ≤1°/h (1σ)
- Random walk: ≤0.1°/h1/2
- Scale factor nonlinearity: ≤50 ppm
- Scale factor asymmetry: ≤10 ppm
- Scale factor repeatability: ≤20 ppm
- Threshold: ≤2°/h
- Resolution: ≤2°/h
- Bandwidth: ≥500 Hz
- Power supply: +5V
- Steady-state power consumption: ≤3W
- Full temperature power consumption: ≤4W
- Startup power consumption: ≤4W
- Dimensions: 64mm × 60mm × 40mm
- Weight: 170g ± 10g
- Electrical interface: RS422
- Operating temperature: -45℃ to +70℃
- Storage temperature: -55℃ to +80℃
- Vibration: 6.06g (RMS), 20Hz-2000Hz
- Impact: 30g, 6ms-8ms
- Mean time between failures: 8000 hours
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