Introduction
LKF-F3X60 silicon photonics inertial measurement unit is the first domestically produced product independently developed, designed, and manufactured by WuHan Liocrebif Technology Co., Ltd. based on silicon photonics integrated chips. The silicon photonics chip employs mature silicon-based heterogeneous integration technology, directly etching the discrete components of traditional fiber optic gyroscopes onto the silicon photonics chip. Compared to traditional fiber optic gyroscopes, this product achieves the same precision while reducing weight, significantly lowering production costs, offering excellent environmental adaptability, and featuring high reliability as a fully solid-state device.
Table 1 Performance parameters of LKF-F3X60 Three-axis FOG IMU
| 1.Performance | | Unit |
| 1.1 Gyroscope |
| 1.1.1 | Measurement Range | ±800 | °/s |
| 1.1.2 | Room Temperature Bias Stability (1 s, 1σ) | ≤3 | °/h |
| 1.1.3 | Constant Temperature Bias Stability (10 s, 1σ, -45°C to +65°C) | ≤3 | “/h |
| 1.1.4 | Full Temperature Bias Stability (100 s, 1σ, -45°C to +65°C) | ≤3 | °/h |
| 1.1.5 | Bias Repeatability (1σ) | ≤3 | °/h |
| 1.1.6 | Scale Factor Nonlinearity (1σ) | ≤50 | ppm |
| 1.1.7 | Scale Factor Asymmetry (1σ) | ≤50 | ppm |
| 1.1.8 | Scale factor repeatability (1σ) | ≤50 | ppm |
| 1.1.9 | Angular random walk coefficient | ≤0.3 | (°)/h^1/2 |
| 1.1.10 | Bandwidth | ≥400 | Hz |
| 1.1.11 | Peak value | ≤3 | °/h |
| 1.2 Accelerometer |
| 1.2.1 | Measurement range | ±30 | g |
| 1.2.2 | Room temperature offset stability (10s, 1σ) | ≤0.5 | mg |
| 1.2.3 | Full temperature range offset stability (100s, 1σ) | ≤1 | mg |
| 1.2.4 | Room temperature offset repeatability | ≤0.5 | mg |
| 1.2.5 | Full temperature range offset repeatability | ≤1 | ma |
| 1.2.6 | Scale factor nonlinearity (1g) | ≤300 | ppm |
| 1.2.7 | Scale factor asymmetry (1g) | ≤300 | ppm |
| 1.3 Other specifications |
| 1.3.1 | Operating temperature | -45~+65 | ℃ |
| 1,3.2 | Storage temperature | -55~+85 | ℃ |
| 2. Electrical parameters |
| 2.1 | Maximum power consumption over full temperature range | <7 | W |
| 2.2 | Transient power consumption | <7 | W |
| 2.3 | Steady-state power consumption | <6 | W |
| 2.4 | Data output format | RS-422(Customized) | / |
| 2.5 | Data update rate | 400(Customized:200.100.50) | Hz |
| 2.6 | Baud rate | 614.4(Customized) | Kbps |
| 2.7 | Power supply input | +5V | V |
| 2.8 | Power supply ripple (Vpp) | ≤50 | mV |
| 2.9 | Current | 1.12 | A |
| 3. Physical parameters |
| 3.1 | Dimensions | 63±0.3x63±0.3×25±1 | mm |
| 3.2 | Weight | 180±15 | g |
| 3.3 | Electrical interface | J63A-242-015-261-TH | / |
Table 2 The electrical interface of the gyroscope uses J63A-242-015-261-TH connector
| No. | Defination | Notes |
| 1 | GND_IN | GND input |
| 2 | VIN | Power input (5V) |
| 3 | VIN | Power input (5V) |
| 4 | GND | Communication ground |
| 5 | A422_R+ | Serial port A inertia group end reception + |
| 6 | A422_R- | Serial port A inertia group end reception - |
| 7 | A422_T+ | Serial port A inertia group end reception - |
| 8 | A422_T- | Serial port A inertia group end reception + |
| 9 | NC | NC |
| 10 | NC | NC |
| 11 | NC | NC |
| 12 | NC | NC |
| 13 | NC | NC |
| 14 | NC | NC |
| 15 | NC | NC |
| Note:1.When connecting or handling this product, take anti-static measures in accordance with GJB 1649-993. 2.Isolate the power ground from the device casing; isolate the serial port digital ground from other grounds. |
Main Features
No reliance on external infrastructure
Real-time dynamic capture with no data delay
Real-time three-axis angular velocity and acceleration information of perceived moving objects
Application
Unmanned vehicles
Unmanned aerial vehicles
Missiles
Aerial surveying
Submarine and ship navigation
Marine engineering surveying and mapping
Spacecraft attitude control
