For example: if the quad tilts to the right, the gimbal control board senses this motion and rotates the roll axis of the gimbal to keep the camera level.

例如：如果四倾斜向右侧，万向节控制板检测到这种运动和旋转的万向节的侧倾轴保持相机水平。

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In order to get the functionality it needed, APX grafted a 5 megapixel camera, mic and a full suite of motion sensors to provide nine-axis head tracking onto a Moverio headset.

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