The product is an inertial angular velocity sensor based on the
Sagnac effect for measuring the rotational angular velocity of the
carrier along the sensitive axis. The digital closed-loop detection
circuit is used to extract the optical path difference of the
counterclockwise propagating light caused by the external physical
angular speed of the optical fiber coil. At the same time, the
voltage signal of the optical path difference signal is converted
to modulation and demodulate the signal, and the closed-loop
feedback and control are realized to achieve the purpose of
real-time angular velocity signal detection.
Main performance Parameters
order number | test item | unit | technical requirement |
1 | Dimension | mm | 64×60×40 |
2 | Turn-on time | s | 3 |
3 | Bias | (°)/h | ≤1 |
4 | Fixed temperature (constant temperature) bias stability (10s
smoothing) | (°)/h | ≤1 |
5 | Variable temperature bias stability (1℃ / min variable temperature, 100s smoothing) | (°)/h | ≤1 |
6 | Bias repeatability | (°)/h | ≤1 |
7 | Random walk coefficient | (º)/h1/2 | ≤0.1 |
8 | Scale factor nonlinearity | ppm | ≤10 |
9 | Scale-factor asymmetry | ppm | ≤20 |
10 | Scaling factor repeatability | ppm | ≤20 |
11 | Threshold | (°)/h | ≤1 |
12 | Resolution | (°)/h | ≤1 |
13 | Width | Hz | ≥500 |
14 | Operating temperature | ℃ | -45～+70 |
15 | Storage temperature | ℃ | -55～+85 |
16 | Dynamic range | (°)/s | ±500 |
17 | Supply voltage | V | +5 |
18 | Steady state power consumption | W | ≤3 |
19 | Full temperature steady state power consumption | W | ≤4 |
20 | Instantaneous starting current | A | ＜1.5 |
