US Patent No. 10,404,143

APPARATUS FOR DETECTING ANGULAR DISPLACEMENT, SYSTEM FOR CONTROLLING ROTATION ANGLE OF MOTOR, GIMBAL, AND AIRCRAFT


Patent No. 10,404,143
Issue Date September 03, 2019
Title Apparatus For Detecting Angular Displacement, System For Controlling Rotation Angle Of Motor, Gimbal, And Aircraft
Inventorship Fazhen Chen, Guangdong (CN)
Yongqian Fan, Guangdong (CN)
Zhengli Zhang, Guangdong (CN)
Assignee AUTEL ROBOTICS CO., LTD., Shenzhen, Guangdong (CN)

Claim of US Patent No. 10,404,143

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.