Precision Single Axis FOG Gyroscope For Positioning And Orientation Systems SIF-70
FG-70/70C is a fully solid-state, digital closed-loop, tactical-grade single-axis fiber optic gyroscope. Based on the SAGNAC principle, it consists of an SLD light source, fiber coupler, photodetector, integrated optical phase modulator, fiber sensing coil, circuit, and structure.
The C model is an upgraded version of the FG-70, featuring high stability and reliability while delivering enhanced performance indicators. The H model adopts higher-grade components
and stricter manufacturing and testing processes, achieving navigation-grade gyroscope performance. They are widely used in the fields of navigation, guidance, and control.
Main performance Parameters
|
order number |
test item |
unit |
technical requirement |
|
1 |
Dimension |
mm |
70×70×30 |
|
2 |
Turn-on time |
s |
3 |
|
3 |
Bias |
(°)/h |
≤0.5 |
|
4 |
Fixed temperature (constant temperature) bias stability (10s smoothing) |
(°)/h |
≤0.1 |
|
5 |
Variable temperature bias stability (1℃ / min variable temperature, 100s smoothing) |
(°)/h |
≤0.2 |
|
6 |
Bias repeatability |
(°)/h |
≤0.05 |
|
7 |
Biase magnetic sensitivity |
(°)/h /Gs |
≤0.05 |
|
8 |
Random walk coefficient |
(º)/h1/2 |
≤0.01 |
|
9 |
Scale factor nonlinearity |
ppm |
≤10 |
|
10 |
Scale-factor asymmetry |
ppm |
≤5 |
|
11 |
Scaling factor repeatability |
ppm |
≤10 |
|
12 |
Threshold |
(°)/h |
≤0.05 |
|
13 |
Resolution |
(°)/h |
≤0.05 |
|
14 |
Width |
Hz |
≥500 |
|
15 |
Operating temperature |
℃ |
-45～+70 |
|
16 |
Storage temperature |
℃ |
-55～+85 |
|
17 |
Dynamic range |
(°)/s |
±500 |
|
18 |
Supply voltage |
V |
+5 |
|
19 |
Steady state power consumption |
W |
≤2.5 |
|
20 |
Full temperature steady state power consumption |
W |
≤4 |
|
21 |
Instantaneous starting current |
A |
＜1.5 |
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