| 摘要 |
PROBLEM TO BE SOLVED: To correct the amount of zero-point fluctuation caused by a vibration signal due to aerodynamic force or mechanical impact force received by a rotating meter and to accurately adjust a zero point.SOLUTION: A zero-point fluctuation component is acquired at plural weight acquisition positions I1-I7, Iz on the circumference of rotation and stored in advance, the zero-point fluctuation component being a difference between a dynamic zero-point weight value based on a load signal from each meter rotating in an unloaded state where an article 13 is not fed and a static zero-point weight value of the meter. A weight value based on the load signal from the rotating meter and acquired at each of the plural weight acquisition positions I1-I7, Iz is corrected with the zero-point fluctuation component for each weight acquisition position. This enables removal of the zero-point fluctuation component caused by a vibration signal due to aerodynamic force or mechanical impact force received by the rotating meter and being different depending on a rotational position, thereby achieving accurate zero-point adjustment. |
