Method for level correction of a load cell in a weighing system

A method for level correction of at least a load cell in a weighing system configured to weigh an object, said method comprising steps of:

• a. obtaining an actual load value wi from N load cells and performing a summation of the actual load values obtained from the N load cells;
• b. calculating center of mass Cx and Cy of the object in an X direction and in a Y direction based on position coordinates xi and yi respectively of the N load cells;
• c. selecting an ith load cell having an ideal load value of Wt1 from the N load cells and expressing the ideal load value Wti of the (N−1) load cells in terms of the ideal load value Wt1 of the selected load cell;
• d. calculating the ideal load value Wti of each load cell according to a proportional relationship of a summation of the ideal load values
• ∑
• i
• =
• 1
• N
• Wt
• i
• of the N load cells to the summation of the actual load values
• ∑
• i
• =
• 1
• N
• w
• i
• of the N load cells, wherein the proportional relationship is based on a principle that the center of mass of the object placed on a horizontal plane is constant;
• and
• e. calculating a load difference Δwi between the ideal load value Wti and the actual load value wi of each of the N load cells, and determining the least load difference Δwi of N load cells and output an instruction for correcting the level of the load cells.