| 摘要 |
PROBLEM TO BE SOLVED: To improve the weighing precision of whole weight discharged from weighing hopper to each discharge chute, in a combination balance provided with a plurality of discharge chutes. SOLUTION: The combination balance is provided with weighing hopper groups 4 for measuring the weighing object and selectively discharge to internal chute 6a, and external chutes 6b and 6c, and a controller 20. The controller 20 determines that the object to be weighed are discharged from the weighing hoppers 4 belonging to each proper combination included in the minimum proper weight combination set to corresponding each chute 6a, 6b and 6c, by obtaining the proper combination weight value within the allowable range to the target weight value regarding to each group A, B and C of the weighing hoppers 4 corresponding to each chute 6a, 6b and 6c, and the sets of proper amount combinations, combined with each of proper weight combination that does not contain the identical weighing hopper 4, and calculating the total of differential weight between the combination weight value of each proper amount combination in each proper amount combination set and the target weight value. COPYRIGHT: (C)2007,JPO&INPIT
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