MEMS Inertial Measurement Unit
Product Overview
MOQ: 1
Size: L(2.24) * W(2.25) * H(9) cm
Specification Number: LKF-MSU102
Technical Characteristics
Customizable Precision and Wide Range of Applications
The LKF-MSU102 MEMS Inertial Measurement Module is a high-reliability, cost-effective six-axis MEMS inertial measurement unit, widely applied in navigation, control and measurement fields represented by vehicles, ships and UAVs.
Custom hardware and software configurations of the LKF-MSU102 series inertial measurement modules are available to meet diverse user requirements.
Advanced Processes and Technologies
The LKF-MSU102 series inertial measurement module integrates high-performance MEMS gyroscopes and MEMS accelerometers within an independent structural housing. The gyroscopes and accelerometers adopted in the system represent the cutting-edge level of inertial devices based on MEMS manufacturing technology.
The three-axis MEMS gyroscope senses the angular motion of the carrier, while the three-axis MEMS accelerometer captures the linear acceleration of the carrier. Built-in full-temperature compensation is implemented for Bias, scale factor, non-orthogonality error and acceleration-dependent terms, enabling sustained high measurement accuracy over long-duration operation.
Performance Parameters
| Parameter |
Technical Index |
| Gyroscope |
| Measurement Range (°/s) | ± 500 |
| Full-Temperature Bias (°/h, 3σ) | ≤ 180 |
| Bias Stability (°/h, 10s smoothing) | ≤ 10 |
| Bias Instability (°/h, Allan variance, typical) | ≤ 2 |
| Bias Repeatability (°/h) | ≤ 10 |
| Angular Random Walk (°/√h) | ≤ 0.2 |
| Scale Factor Nonlinearity (ppm) | ≤ 100 |
| Cross-Coupling Error (rad) | ≤ 0.001 |
| Bandwidth (Hz) | ≥ 200 Hz |
| Accelerometer |
| Measurement Range (g) | ± 16 |
| Full-Temperature Bias (mg, 3σ) | ≤ 5 |
| Bias Stability (μg, 10s smoothing) | ≤ 300 |
| Bias Instability (μg, Allan variance, typical) | ≤ 40 |
| Bias Repeatability (μg) | ≤ 300 |
| Velocity Random Walk (m/s/√h) | ≤ 0.04 |
| Scale Factor Nonlinearity (ppm, ±1g) | ≤ 200 |
| Cross-Coupling Error (rad) | ≤ 0.001 |
| Bandwidth (Hz) | ≥ 200 Hz |
| Physical Characteristics |
| Power Supply (V) | 5 ±0.2 (ripple ≤100 mV) |
| Steady-State Power Consumption (W) | ≤ 0.5 |
| Startup Time (s) | ≤ 2 |
| Maximum Output Update Rate (Hz) | 1000 |
| Dimension (mm * mm * mm) | 22.4 * 23 * 9 |
| Weight (g) | 18 ± 3 |
| Operating Environment |
| Operating Temperature (℃) | -40 ~ 80 |
| Storage Temperature (℃) | -55 ~ 85 |
| Vibration (g, RMS) | 20~2000 Hz, 6.06 |
| Shock (g) | 1000 / 1 ms |
Pin Definition
| Pin No. |
Definition |
Remarks |
| 1 | TOV | Sampling Synchronization Pulse (LVTTL) |
| 2 | PPS_IN | PPS Input (LVTTL) |
| 3 | UART_RX | UART Receive (LVTTL) |
| 4 | UART_TX | UART Transmit (LVTTL) |
| 5 | GND | Power Ground |
| 6 | VCC (+5V) | Positive Power Supply |
Main Features
- Multi-sensor redundancy and fault-tolerant design
- High performance, compact size, light weight and low power consumption
- Full-temperature calibration and compensation ranging from -40℃ to +80℃
- High-speed sampling at 1 kHz
- Resistance to harsh mechanical environments
- Support for online software upgrade
Applications
- Antenna stabilization platforms
- UAV attitude reference & trajectory control
- Flight control systems
- Vehicle & ship attitude measurement
- Port measurement systems
- Mobile Satellite Communication (Mobile SATCOM)
- Mobile mapping systems
- Automated driving test systems
- Personal navigation systems
Outline Structure Dimension Diagram
