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IMU Sensor

Robotics / sensors

An IMU sensor (Inertial Measurement Unit) is a device that measures a robot or object's motion and orientation using:

Sensor Measures Unit
Accelerometer Linear acceleration m/s²
Gyroscope Angular velocity (rotational speed) rad/s
Magnetometer (optional) Magnetic field for heading (compass) µT
  • 6 DOF IMU, combining a 3-axis accelerometer and a 3-axis gyroscope.
  • 9 DOF IMU, adding a 3-axis magnetic compass.
  • 10 DOF IMU, which adds a barometer for estimating the sensor’s altitude.

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