| 摘要 |
PURPOSE:To simplify circuit constitution and shorten a subtraction time by subtracting the weighed value of the weighed body in each weighing hopper from target weight successively, and selecting such a combination that the absolute value of the subtraction result is minimum when the subtraction result decreases to zero. CONSTITUTION:Storage circuits 111-11n are stored with weight values from meters 21-2n which weigh bodies to be weighed supplied to weighing hoppers 11-1n. A target weight setting circuit 17 is a circuit for setting the target weight. A subtracter 18 subtracts some of weighed values supplied to the storage circuits 111-11n through switch groups 121-12n from the value stored in a register 19 temporarily. A combination deciding circuit 22 compares the subtraction result of the subtracter 18 to decide on such a combination among the weighing hoppers 11-1n that the absolute value of an output value among zero or negative output values of the subtracter 18 is minimum. Thus, the circuit constitution is simplified and the subtraction time is shortened. |
