Introduction
F3G40 3-axis FOG is an inertial product developed for inertial navigation, attitude measurement and control systems of small missiles and guided bombs. The angular velocity and linear acceleration of the carrier motion provide information for the attitude and navigation control of the carrier, and the measurement results are output through the RS422 serial port.
By reducing the outer diameter of fiber to 135μm,Thin PM fiber solution decreases extremely the size of fiber coils and delivers outstanding precision performance in fiber coils, which is applied for miniaturization of FOGs. And, the coils are wound precisely through quadrupole symmetry method.
The three-axis fiber-optic gyroscope can provide high-precision attitude angular velocity data to help the UAV achieve accurate attitude control and navigation. By monitoring the UAV's 3D rotational motion in real time, the gyroscope data can be fused with GPS and other sensor data to ensure the stability and accuracy of the UAV in flight.
Table 1 Performance parameters of LKF-F3G40 Three-axis FOG
| No. | Test items | Unit | Requirement |
| 1 | Start-up Time | s | 3 |
| 2 | Bias Stability (10s smoothing) | (°)/h | ≤0.1 |
| 3 | Bias Repeatability | (°)/h | ≤0.1 |
| 4 | Random Walk Factor | (º) /h^1/2 | ≤0.01 |
| 5 | Scale Factor Nonlinearity | ppm | ≤20 |
| 6 | Scale Factor Repeatability | ppm | ≤20 |
| 7 | Operating Temperature | ℃ | -45~+70 |
| 8 | Storage Temperature | ℃ | -55~+80 |
| 9 | Dynamic Range | (°)/s | ±500 |
| 10 | Power Supply Voltage | V | +5V |
| 11 | power Consumption in Steady State (full temperature) | W | ≤8 |
Table 2 The Electrical Interface Of The Gyroscope Uses J30-15ZK Connecto
| No. | Defination | Notes |
| 1 | +5V | Power supply input |
| 2 | GND | Power supply ground |
| 3 | RETAIN | |
| 4 | RXD+ | Gyro differential select positive |
| 5 | TXD+ | Gyro RS422 output positive |
| 6 | +5V | Power supply input |
| 7 | GND | Power supply ground |
| 8 | RXD- | Gyro differential select negative |
| 9 | TXD- | Gyro RS422 output negative |
Main Features
High degree of engineering, highly cost-effective
Pure solid-state design with strong environmental adaptability
Long life and high reliability, MTBF 20000h
Single power supply (+ 5V), simplify system design
Full digital RS-422 electrical interface output
Application
Photoelectric Pod / Flight Control Platform
Inertial Measurement Unit
Surveying and Mapping, Track Inertial Navigation Line Detection
Platform Stabilization Device, Mobile Communication
Fig. 1 Dimensions of the external structure 
