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[China]
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Address: 429, Building A10, Fuhai Information Port, Xinhe Community, Fuhai Street, Shenzhen, Guangdong, China
Contact name:Caine
Shenzhen Fire Power Control Technology Co., LTD |
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1. Working Principle
Fiber optic gyroscopes are based on the Sagnac Effect: when light
propagates in a closed optical path, if that path rotates, the
light propagating in the clockwise and counterclockwise directions
will produce a phase difference that is proportional to the angular
velocity. The fiber optic gyroscope interferometrically measures
this phase difference to calculate the angular velocity.
The 3-axis FOG uses three orthogonally aligned fiber optic
gyroscopes to measure the angular velocity of rotation in three
dimensions. This design not only reduces mounting errors and
improves consistency and accuracy compared to multiple single-axis
gyroscope combinations, but also optimizes size and power
consumption.
2. Parameters
| Serial number | Test item | Unit | Technical requirements |
| 1 | Start-up time | s | 3 |
| 2 | Zero-bias stability (10 s smoothing) | (°)/h | ≤0.3 |
| 3 | Zero-bias repeatability | (°)/h | ≤0.3 |
| 4 | Random walk coefficient | (º)/h1/2 | ≤0.01 |
| 5 | Scale factor non-linearity | ppm | ≤50 |
| 6 | Scale factor repeatability | ppm | ≤50 |
| 7 | Operating temperature | ℃ | -45~+70 |
| 8 | Storage temperature | ℃ | -55~+80 |
| 9 | Dynamic range | (°)/s | ±500 |
| 10 | Supply voltage | V | +5V |
| 11 | Steady state power consumption (full temperature) | W | ≤8 |
