Combined measurement and data verification physical basis operation method thereof

The invention relates to the technical field of buoyancy testing, in particular to a combined measurement and data verification physical basis operation method, which is characterized in that a pulling mechanism is connected with a buoyancy part to realize automatic lifting of the buoyancy part in a water tank, a water storage tank is arranged, and when the buoyancy part rises to the highest position, the water storage tank injects the solution into the buoyancy part, the mass of the buoyancy part is changed, multiple experiments are repeatedly carried out, three states of the buoyancy part from floating to suspension to sinking in the solution are observed, and related calculation is carried out through data obtained by a measuring mechanism and a weighing device in the experiment process. Therefore, the technical problems that the change of the object from floating to sinking in the solution can be clearly observed, and the relation of the relative density between the object and the solution when the object