| 摘要 |
PROBLEM TO BE SOLVED: To re-input to allow easy selection into a metering hopper which is difficult to select, in a combination balance. SOLUTION: In this combinational balance equipped with a plurality of metering hoppers for detecting a metering weight which is the weight of an inputted metering object, the metering object is inputted into a vacant metering hopper so that the metering weight becomes the weight of 1/M (M is an integer) of a combination target weight; concerning a combination of the metering hoppers, a combination weight which is a total of the metering weights of the metering hoppers joining the combination is calculated; and the metering hoppers joining the optimum combination which is a combination whose combinational weight is within a tolerance determined, based on the combinational target weight and is nearest the combination target weight are selected, and the metering object is discharged from the selected metering hoppers. In balance, it is determined whether a specific metering hopper satisfying a prescribed standard for determining difficulty of being selected exists, and when the specific metering hopper exists, the metering object is re-inputted into the specific metering hopper so that the metering weight of at least one specific metering hopper becomes integral fold of 1/M of the combination target weight. COPYRIGHT: (C)2006,JPO&NCIPI
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