3DM-GV7-AHRS

• Tactical grade gyro (1.5°/hr bias instability)
• Fully calibrated over entire temperature range
• Roll/pitch accuracy
• Static: 0.25°
• Dynamic: 0.5°
• Integrated magnetometer for absolute heading tracking
• Onboard Extended Kalman Filter for attitude estimation
• User-selectable accelerometer and gyroscope range
• Adjustable sampling rates up to 1 KHz
• Factory supported ROS1 and ROS2 driver
• SensorConnect software for configuration, control, display, and logging
• MSCL open source API for easy integration

Downloads

Datasheet

The 3DM-GV7 offers tactical grade inertial performance in a miniature ruggedized package. Ready for the harshest
environments, the 3DM-GV7 features a precision-machined aluminum enclosure and is tested to an IP68 rating.
The 3DM-GV7 touts a new feature set designed specifically for the demanding timing requirements of the robotics
and automation industries. Available in IMU/VRU (Vertical Reference Unit), IMU/AHRS (Attitude and Heading
Reference System), and INS (Inertial Navigation System) models.

3DM-GV7-AHRS
Specification 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) 20 μg
Hysteresis Accel bias: 0.9 mg, Accel gain: 318 PPM, Gyro bias: 0.066 °/s, Gyro gain: 1000 PPM
Communication Port Type Micro D9
Communication Interface RS-232, USB
Update Rate IMU: 1000 Hz, EKF: 1000 Hz
Inputs/Outputs 2xGPIO
Weight 17.7 g
Size 36.2 mm × 36.6 mm × 10.2 mm
Power Consumption 0.32 W
Input Voltage 4.6 V to 36.0 V
Minimum Operating Temperature -40 °C
Maximum Operating Temperature 85 °C
MTBF 2,058,917 h
Sensing Range (Accelerometer) 4 g, 8 g, 16 g
Sensing Range (Gyroscope) 250 °/s, 500 °/s, 1000 °/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 Rating Not Rated, IP68
Housing Material Aluminum
Software MSCL, ROS, SensorConnect
Mounting Style Screw Down, Precision Alignment

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