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E-mail:jl.dong@mtmems.com
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Attitude sensor
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Product Classification:
Product Introduction
The MNS301E attitude sensor consists of a MEMS three-axis gyroscope and a three-axis accelerometer. The inertial sensors have undergone full-temperature-range calibration, ensuring they meet performance requirements under various conditions. Equipped with a unique built-in attitude algorithm, this product provides stable and reliable attitude information, as well as angular rate and linear acceleration data, for the platform it’s mounted on. The product boasts advantages such as small size, low power consumption, high reliability, and stable performance. It can be applied to attitude control in fields including automotive, airborne, and marine applications.
Performance metrics
| Spinning top | Accelerometer | System Features | ||||||
| Measurement range | ± 450 | ° /s | Measurement range | ± 10 | g | Supply voltage | 5 ± 0.2 | V |
| Zero-bias stability | ≤ 10 | ° /h | Zero bias | ≤5 | mg | Power consumption | ≤2 | W |
| Zero-bias repeatability | ≤ 10 | ° /h | Zero-bias stability | ≤0.2 | mg | Interface Type | RS422 | -- |
| Nonlinear scale factor | ≤50 | parts per million | Zero-bias repeatability | ≤0.2 | mg | Data update rate | 200 (up to 500) | Hertz |
| Angular Random Walk | ≤0.2 | ° /√h | Nonlinear scale factor (within ±1g) | ≤150 | parts per million | Baud rate | 115200 default | bits per second |
| Roll/Pitch | Operating temperature range | ~45~+85 | °C | |||||
| Static | ≤0.1 | ° | Storage temperature range | ~50~+85 | °C | |||
| Dynamic | ≤0.3 | ° | Weight | ≤75 | g | |||
| Heading | Connector | J30J-15ZKP | -- | |||||
| Heading drift @1min | ≤0.2 | ° | ||||||
Application areas

● Airborne domain: payload stabilization, drones
● Land-based domain: Precision agriculture, mobile communication in motion
● Marine infrastructure: underwater unmanned platforms, ship positioning, and communication-enabled unmanned vessels
Main dimensions and interface definitions

| External dimensions | |
| Code | Value (mm) |
| A | 44.8 ± 0.5 |
| B | 38.6 + 0.5 |
| D | φ4.2+0.1 |
| And E | 35.9 + 0.2 |
| F | 29.3 ± 0.2 |
| H | 28 ± 0.5 |
| H1 | 5.8 ± 0.3 |
| H2 | 5.8 ± 0.3 |
| Output interface wiring definition | ||
| Pin number | Definition | Instructions |
| 1 | +5V | Power positive |
| 2 | GND | Power ground |
| 3 | RS422_TX_P | RS422 transmit positive |
| 4 | RS422_TX_N | RS422 sends negative |
| 5 | RS422_RX_P | RS422 receive positive |
| 6 | RS422_RX_N | RS422 receives negative. |
| 7 | AUX_RS232_TXA | Extended serial port output |
| 8 | AUX_RS232_RXA | Extended serial port input |
| 9 | SGND | Signal ground |
| 10 | N/A | N/A |
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