In this paper, we propose higher speed and highly accurate weighing method of packages during crossing a conveyor belt. Continuous weighing means that the masses of discrete packages on a conveyor belt are determined in sequence. Through the new weighing method, a weighing scale (called a multi-stage conveyor belt scale) can be created so as to adjust the conveyor belt length to the product length. In a previous paper, the masses of products have been estimated successfully as the maximum values evaluated from the output smoothed signals. However, there have been still some crucial problems that the estimation errors were sometimes getting worse. One of causes has been due to the fact that the output signals had several peak values like a winding path. In this paper, our interest is directed to solve many technical problems when we put the multi-stage conveyor belt scale into practical use. Consequently, our weighing method proposed here is not sufficient for highly accurate weighing, but the limit of practicability has been verified by experiment.
