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IMU
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[[IMU]] or '''inertial measuring deviceunit''' is an electronic [[sensor]] composed of [[accelerometer]], [[gyroscope]] and [[magnetometer]]. It measures a [[device]]'s velocity, orientation and gravitational forces.
In [[virtual reality|virtual]] and [[augmented reality|augmented reality]], IMUs are used to perform [[rotational tracking]] for the [[HMD]]s and the [[Input Devices]].
