Kinematic calibration of center-of-mass measurement platform for special heavy vehicle

The structure and measuring principle of a center-of-mass measurement platform for special heavy vehicle were presented, and its kinematics model was formulated, which describes the inverse kinematics and forward kinematics. Then, a kinematic calibration method based on least square was developed, and the fourteen main kinematic parameters of the measurement platform were calibrated using the presented method. Lastly, the calibrated results were verified by computer simulation. It lays a theoretical basis for more enhancing the measuring accuracy of center-of-mass measurement platform.