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Micro-IMU Module
Product Model:
MSI371K
Product Features
● High precision
● Wide range
● High cost performance
● Full Temperature Compensation
● Built-in temperature sensor
● High stability
Product Introduction
The MSI371K micro inertial measurement unit is a high‑precision, wide‑range, miniaturized inertial component that integrates three-axis gyroscopes and three-axis accelerometers. By fully compensating for zero bias and scale factor across the entire temperature range for each axis, it can provide highly accurate angular rate and linear acceleration measurements over a broad dynamic range.
Performance Metrics
| Spinning top | Accelerometer | System | ||||||
| Measurement range | ±450 | °/s | Measurement range | ±50 | g | Supply voltage | 5 ± 0.3 | v |
| Full‑temperature zero bias | ≤50 | °/h | Full‑temperature zero bias | ≤2 | mg | Operating temperature range | -45~85 | °C |
| Random Walk with Random Angles | ≤0.15 | °/√h | Random Walk with Speed | ≤0.02 | m/s/√h | Shock-resistant | ≥2000 | g |
| Zero Bias Instability | ≤2 | °/h | Zero Bias Instability | ≤0.02 | mg | Vibration | ≥20 | grams |
| Zero‑bias stability (1a) | ≤5 | °/h | Zero Bias Stability | ≤0.1 | mg | Size | 44.8×38.6×13.5 | mm |
| Zero Bias Reproducibility (1a) | ≤3 | °/h | Zero bias repeatability | ≤0.1 | mg | Weight | ≤35 | g |
| Nonlinear scale factor | ≤30 | ppm | Nonlinear scale factor | ≤100 | ppm | Interface Type | RS422 | -- |
| Bandwidth (configurable) | 150 | Hz | Bandwidth (configurable) | 150 | Hz | Output Method | J30J-9ZKP4L | -- |
Application Fields
● Inertial Navigation: Inertial Guidance, Integrated Navigation, Platform Stabilization
● Short‑term navigation: flight control, telemetry and remote control
● Attitude Control: Drone and Antenna Steering
Main Dimensions and Interface Definitions
| Codename | Value (mm) |
| A1 | 13.5 ± 0.1 |
| A1 | 5.2 ± 0.1 |
| D | 44.8 ± 0.1 |
| D1 | 26.0 ± 0.2 |
| E | 38.6±0.1 |
| G | 7.6 ± 0.2 |
| P | 4.2 ± 0.1 |
| q1 | 29.3±0.1 |
| q2 | 35.9±0.1 |
| Pin Number | Definition | Explanation |
| 1 | +5V | Power positive |
| 2 | GND | Power ground |
| 3 | RX+ | RS422 Receive Positive |
| 4 | RX- | RS422 negative receive |
| 5 | TX- | RS422 sends negative. |
| 6 | TX+ | RS422 transmit positive |
| 7, 8, 9 | N/A | N/A |
Consultation
For inquiries about products or sales, please contact us.
