Shenzhen Fire Power Control Technology Co., LTD
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1. Structural Composition
The FOG is mainly composed of the following core components:
Light source (usually a superluminescent light emitting diode SLD): provides light with low coherence to reduce coherent noise.
Fiber optic ring (a few hundred to a few thousand meters): used to guide the light propagation and create an interference effect.
Optical beam splitter (coupler): divides light into clockwise and counterclockwise directions.
Photodetector: receives the interfered light signal and converts it into an electrical signal.
Signal processing circuit: calculates the phase difference and outputs the angular velocity signal.
2. Product Advantages
Fiber optic gyroscopes have no moving parts and work entirely on the basis of optical principles. They are extremely resistant to external electromagnetic interference, vibration and shock, making them suitable for use in harsh environments such as aerospace, marine and industrial scenarios.
3. Parameters
| Serial number | Test item | Unit | FOG-60A | FOG-60B |
| 1 | Overall dimensions | mm | 60×60×32 | 60×60×32 |
| 2 | Start-up time | s | 3 | 3 |
| 3 | Zero bias | (°)/h | ≤0.1 | ≤0.5 |
| 4 | Zero bias stability at normal temperature (constant temperature) (10 s smooth) | (°)/h | ≤0.06 | ≤0.1 |
| 5 | Zero bias stability with temperature change (1 ℃/min variable temperature, 100 s smooth) | (°)/h | ≤0.18 | ≤0.3 |
| 6 | Zero-bias repeatability | (°)/h | ≤0.06 | ≤0.1 |
| 7 | Zero bias sensitivity | (°)/h/Gs | ≤0.06 | ≤0.1 |
| 8 | Random walk coefficient | (º)/h1/2 | ≤0.006 | ≤0.01 |
| 9 | Scale factor nonlinearity | ppm | ≤10 | ≤10 |
| 10 | Scale factor asymmetry | ppm | ≤5 | ≤5 |
| 11 | Scale factor repeatability | ppm | ≤10 | ≤10 |
| 12 | Threshold | (°)/h | ≤0.06 | ≤0.1 |
| 13 | Resolution | (°)/h | ≤0.06 | ≤0.1 |
| 14 | Bandwidth | Hz | ≥500 | ≥500 |
| 15 | Operating temperature | ℃ | -45～+70 | -45～+70 |
| 16 | Storage temperature | ℃ | -55～+85 | -55～+85 |
| 17 | Dynamic range | (°)/s | ±500 | ±500 |
| 18 | Supply voltage | V | +5 | +5 |
| 19 | Normal temperature steady state power consumption | W | ≤2.5 | ≤2.5 |
| 20 | Full temperature steady state power consumption | W | ≤4 | ≤4 |
| 21 | Start the instantaneous current | A | <1.5 | <1.5 |