The TJ-MIMU-P Micro Inertial Measurement Unit (MIMU) is a professional inertial measurement device built on mature Micro-Electro-Mechanical System (MEMS) technology. It integrates a built-in three-axis MEMS gyroscope, three-axis MEMS accelerometer, three-axis magnetometer and barometric pressure sensor, matched with dedicated drive and signal acquisition circuits, temperature sensors, digital signal processing circuits, mechanical structures and supporting embedded software.
Adopting a proprietary structural design and equipped with comprehensive compensation algorithms covering full-temperature range, installation misalignment and nonlinearity, the MIMU delivers steady and reliable performance in static, dynamic and harsh working environments, providing high-stability measurement data for various application scenarios.
Main performance Parameters
| Indicator Type | Specification | Unit | |
| Gyroscope | Range | ±450 | °/s |
| Bias stability(1б,10s Smooth) | ≤10 | °/h | |
| Bias instability(Allan variance) | ≤2 | °/h | |
| Bias Repeatability(1σ) | ≤10 | °/h | |
| Angular random walk | ≤0.25 | °/√h | |
| Scale Factor Repeatability | ≤200 | ppm | |
| Scale Factor Nonlinearity | ≤200 | ppm | |
| Bandwidth | ≥330 | Hz | |
| Accelerometer | Range | ±16 | g |
| Bias stability(1б,10s Smooth) | ≤0.2 | mg | |
| Bias instability(Allan variance) | ≤0.025 | mg | |
| Bias Repeatability(1σ) | ≤0.2 | mg | |
| Angular random walk | ≤0.025 | m/s/√h | |
| Scale Factor Repeatability | ≤200 | ppm | |
| Scale Factor Nonlinearity | ≥200 | ppm | |
| Bandwidth | ≥330 | Hz | |
| Magnetic sensor | Dynamic measurement range | ±2.5 | gauss |
| Resolution | ≤0.12 | mGauss | |
| Noise Density | ≤50 | uGauss | |
| Bandwidth | ≥200 | Hz | |
| Barometer | Pressure Range | 450~1100 | mbar |
| Resolution | ≤0.1 | mbar | |
| Absolute Measurement Accuracy | ≤1.5 | mbar | |
| Electrical properties | Voltage | 3~5.5 | V |
| Power consumption | ≤1.5 | W | |
| Others | Weight | ≤50 | g |
| Size | 47*44*14 | mm | |
| Interface | SPI,UART | - | |
