FG-98C
Bias stability(10s smoothing,1σ):0.015°/h
Bias stability(100-second smoothing,1σ):0.005°/h
Bias stability(100-second smoothing,1σ,temperature change):0.015°/h
Dimensions:98mm×98mm×33.5mm
Weight:520±20g">
FG-98C
Fiber Optic Inertial
Product Introduction
FG-98C 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, and control.
Product Features
· Single 5V power supply
· Excellent full-temperature performance
· Excellent start-up performance: meets nominal indicators instantly after power-on, no warm-up required
· Excellent environmental adaptability, resistant to strong shock and vibration
· Interference fringe recognition technology, supporting full dynamic range cold start
· High reliability
· No dead zone
Applications
· High-precision stabilized platforms
· Positioning and orientation systems
· North Seeker
· Attitude and heading reference systems (AHRS)
· Fiber optic compasses
· Strapdown inertial navigation systems (SINS)
Technical Indicators
|
Category |
Indicator |
FG-98C |
FG-70H |
|
|
|
||
|
Performance Indicators |
Bias (°/h) |
0.3 |
0.5 |
|
Bias Stability① (°/h, 1σ) |
0.015 |
0.03 |
|
|
Bias Stability② (°/h, 1σ) |
0.005 |
0.01 |
|
|
Bias Stability③ (°/h, full temperatures, 1σ) |
0.015 |
0.05 |
|
|
Bias Repeatability (°/h, 1σ) |
0.005 |
0.01 |
|
|
Bias Magnetic Sensitivity (°/h/Gs) |
0.005 |
0.01 |
|
|
Random Walk (°/h ½) |
0.0008 |
0.003 |
|
|
Scale Factor Nonlinearity (ppm) |
2 |
10 |
|
|
Scale Factor Asymmetry (ppm) |
2 |
5 |
|
|
Scale Factor Repeatability (ppm) |
5 |
10 |
|
|
Dynamic Range (°/s) |
±300 |
±300 |
|
|
Start-up Time (s) |
3 |
3 |
|
|
Bandwidth (Hz, -3db) |
>200 |
>500 |
|
|
Mechanical/Electrical Interface |
Dimensions (mm) |
98×98×33.5 |
70×70×31 |
|
Weight (g) |
520±20 |
220±10 |
|
|
Room Temperature Steady-State Power Consumption (W) |
≦2.5 |
≦2.5 |
|
|
Supply Voltage(V) |
+5 |
+5 |
|
|
Operating Temperature (℃) |
-45~+70 |
-45~+70 |
|
|
Storage Temperature (℃) |
-55~+85 |
-55~+85 |
|
|
Vibration (1σ, 20Hz~2000Hz) |
6.06g |
6.06g |
|
|
Shock (g, ms, 1/2sin) |
30g, 6ms-8ms |
30g, 6ms-8ms |
|
|
Communication Interface |
RS422, etc. |
RS422, etc. |
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