• Tactical grade gyro (1.5°/hr bias instability)
• Fully calibrated over entire temperature range
• Roll/pitch static accuracy: 0.25°, dynamic accuracy: 0.5°
• Integrated magnetometer for absolute heading tracking
• Onboard Extended Kalman Filter for attitude estimation
• User-selectable accelerometer and gyroscope range
• 1 KHz output data rate for all channels
• Factory supported ROS1 and ROS2 driver
• PX4 Autopilot driver for drones, rovers, robots, and more
• SensorConnect software for configuration, control, display, and logging
• MSCL open source API for easy integration
The 3DM-CV7-AHRS Inertial Measurement Unit (IMU) and Attitude and Heading Reference System (AHRS)
offers tactical-grade performance in the smallest and lightest OEM package yet.
Each sensor is individually calibrated for optimal performance over a wide range of operating conditions.
The Auto-Adaptive Extended Kalman Filter has been designed from the ground up to deliver consistently reliable
measurements even in the most challenging environments. Cutting-edge orientation algorithms,
advanced internal time management, and a flexible event-triggering system put the 3DM-CV7-AHRS in a league
of its own when it comes to price and performance.
| Parameter | Value |
|---|---|
| Performance Grade | Tactical Grade |
| Features | Accelerometer, Gyroscope, Magnetometer |
| Random Walk | Accel: 20 µg/√Hz, Gyro: 0.3 °/√hr |
| Bias Instability (Gyroscope) | 1.5 °/hr |
| Bias Instability (Accelerometer) | 18 µg |
| Hysteresis | Accel bias 0.6 mg, Accel gain 125 PPM, Gyro bias 0.04 °/s, Gyro gain 1000 PPM |
| Communication Port Type | Samtec FTSH series |
| Communication Interface | TTL serial, USB |
| Update Rate | IMU 1000 Hz, EKF 1000 Hz |
| Inputs / Outputs | 4 × GPIO |
| Weight | 8.3 g |
| Size | 38 mm × 24 mm × 8.6 mm |
| Power Consumption | 0.23 W |
| Input Voltage | 3.2 V to 5.2 V |
| Operating Temperature | –40 °C to +85 °C |
| MTBF | 2 002 026 h |
| Sensing Range (Accelerometer) | ±4 g |
| Sensing Range (Gyroscope) | ±250 °/s |
| Sensing Range (Magnetometer) | ±8 Gauss |
| Sensing Range (Pressure) | 1260 mbar |
| Accuracy | Roll/Pitch (dynamic) 0.5 °, Roll/Pitch (static) 0.25 °, Heading (static) 0.5 °, Heading (dynamic) 2 ° |
| Ingress Protection | Not Rated |
| Housing Material | Aluminum |
| Software | MSCL, ROS, SensorConnect |
| Mounting Style | Embeddable, Screw Down, Precision Alignment |
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