ER-FIMU-70 FOG IMU
Introduction
ER-FIMU-70 FOG inertial measurement unit is specially developed for tactical system applications. The product consists of all solid-state three-axis fiber optic gyroscope, three-axis quartz flexible accelerometers, body structure, data interface board and other components.
Features
All solid-state three-axis fiber optic gyroscope
High reliability
Three-axis quartz flexible accelerometers
Developed for tactical system applications
High stability
Applications
Space stabilization systems, mapping systems, attitude reference systems, motion compensation systems, imaging stabilization systems, flight control systems
Air combat maneuvering instruments
Navigation test equipment
Specifications
| Item | Parameter | Unit |
| Gyro performance | ||
| Range | ±300 | deg/s |
| Scale Factor Repeatability (1σ) | ≤50 | ppm |
| Scale Factor Non-Linearity (1σ) | ≤50 | ppm |
| Bias stability (10s 1σ) | ≤0.1 | deg/hr |
| Bias Repeatability(1σ 25℃) | ≤0.1 | deg/hr |
| Angular Random Walk | ≤0.01 | °/ √h |
| Accelerometer performance | ||
| Range | ±60 | g |
| Bias Stability (10s 1σ) | ≤30 | ug |
| Bias Repeatability | ≤80 | ug |
| Bias Temp Coefficient | ≤±50 | ug/℃ |
| Scale Factor Repeatability | ≤100 | ppm |
| Scale Factor Temp Coefficient | ≤±100 | ppm/℃ |
| Class II Non-linearity Coefficient | ≤±30 | ug/g2 |
| Environment and power | ||
| Operate temperature | -40~+60 | ℃ |
| Power supply | 9~28 | V |
| Communication interface | RS-422 | |
| Physical characteristics | ||
| Size | 200 *100*90 mm | mm |
| Weight | 2 | Kg |
Data update frequency: Adjustable from 1 to 1000 Hz：
| Byte | Data Content | Supplementary explanation |
| 1~4 | Head | 0X EB8055AA |
| 5~8 | X Gyro data | Low first, then high, dimensionless numerical quantity |
| 9~12 | Y Gyro data | Low first, then high, dimensionless numerical quantity |
| 13~16 | Z Gyro data | Low first, then high, dimensionless numerical quantity |
| 17~20 | X Accl data | Low first, then high, dimensionless numerical quantity |
| 21~24 | Y Accl data | Low first, then high, dimensionless numerical quantity |
| 25~28 | Z Accl data | Low first, then high, dimensionless numerical quantity |
| 29~30 | Temperature | Low first, then high |
| 31~33 | End | 0X 00FF34 |
The connector wiring definitions are shown in the table below:
| No | J30 | Define | Note |
| 1 | 1、3 | 12~28V | Power |
| 2 | 2、4 | GND | |
| 8 | 8 | T+ | 422 |
| 9 | 9 | T- | |
| 10 | 11 | R- | |
| 11 | 10 | R+ |
Dimension
Application Techniques
1.Internal Structure Analysis of IMU
2.What are the Application Scenarios of the IMU？
3.Application of IMU in UAV Flight Control System
4.IMU in Drones (MEMS triaxial accelerometer, triaxial gyroscope, triaxial magnetometer)
6.IMU inertial measurement unit (provides odometer, position, attitude)
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