1. Product Core Technology
The 3-axis integrated fiber optic gyroscope integrates a number of
advanced technologies to ensure high accuracy, low drift and
stability:
A. Fiber optic ring technology: high quality fiber optic
manufacturing, optimized fiber optic winding process to reduce
temperature drift and fiber optic non-uniformity effects.
B. Closed-loop control: Digital Signal Processing (DSP) and
closed-loop modulation technology to improve gyro output stability
and dynamic range.
C. High-precision signal processing: low-noise photodetector and
signal filtering algorithms to improve signal quality and reduce
the impact of noise.
D. Temperature Compensation Algorithm: Integrated temperature
sensor and temperature compensation algorithm to ensure that it can
still maintain high precision measurement in different
environments.
E. High Reliability Structure Design: Adopting anti-shock and
anti-vibration design to ensure stable operation even in harsh
environments.
2. Parameters
| Serial number | Test item | Unit | Technical requirements |
| 1 | Start-up time | s | 3 |
| 2 | Zero bias | (°)/h | ≤0.5 |
| 3 | Zero bias stability at normal temperature (constant temperature)
(10 s smooth) | (°)/h | ≤0.05 |
| 4 | Zero bias stability at variable temperature (1 ℃/min variable
temperature, 100 s smooth) | (°)/h | ≤0.1 |
| 5 | Zero-bias repeatability | (°)/h | ≤0.05 |
| 6 | Zero bias magnetic sensitivity | (°)/h/Gs | ≤0.05 |
| 7 | Random walk coefficient | (º)/h1/2 | ≤0.01 |
| 8 | Scale factor nonlinearity | ppm | ≤10 |
| 9 | Scale factor asymmetry | ppm | ≤5 |
| 10 | Scale factor repeatability | ppm | ≤10 |
| 11 | Threshold | (°)/h | ≤0.05 |
| 12 | Resolution | (°)/h | ≤0.05 |
| 13 | Bandwidth | Hz | ≥500 |
| 14 | Operating temperature | ℃ | -45～+70 |
| 15 | Storage temperature | ℃ | -55～+85 |
| 16 | Dynamic range | (°)/s | ±500 |
| 17 | Supply voltage | V | +5 |
| 18 | Normal temperature steady state power consumption | W | ≤4 |
| 19 | Full temperature steady state power consumption | W | ≤8 |
| 20 | Start the instantaneous current | A | <2 |
3. Production environments
