1. A gimbal, comprising:a frame;
a motor coupled to the frame;
a photographing apparatus coupled to the motor, the photographing apparatus being driven to rotate about an axis by the motor;
an apparatus for detecting an angular displacement of the motor; and
a controller, the controller controlling the angular displacement of the motor according to a detection result of the apparatus; wherein
the apparatus comprising:
a combined magnet, coupled to a rotator of the motor and comprising a first magnet, a weak magnetic layer and a second magnet that are sequentially stacked, magnetic pole directions of the first magnet and the second magnet being opposite and parallel to the weak magnetic layer; and
a Hall sensor, used to detect the angular displacement of the combined magnet, the hall sensor being disposed opposite to the combined magnet and electrically connected to the controller.