| 摘要 |
PROBLEM TO BE SOLVED: To provide a combinational measuring device for performing an efficient measurement. SOLUTION: A combinational measuring device is provided with a radiation feeder 5 for transporting objects and a measuring hopper 7 for measuring the weight of the objects transported by the radiation feeder 5. As to each measuring hopper 7 performing introduction by a prescribed frequency, an average operation part 81 obtains an average and standard deviation of a transport quantity every group transported by the radiation feeder 5. On the basis of the obtained standard deviation, a parameter operation part 83 determines whether or not the transport quantity per group transported by the radiation feeder 5 is dispersed. The parameter operation part operates a control parameter so that the transport quantity per group transported by the radiation feeder 5 reaches a target introduction value if the transport quantity per group transported by the radiation feeder 5 is stable, while operating the control parameter so that the transport quantity per group transported by the radiation feeder 5 is not in excess of a target measured value if the transport quantity per group transported by the radiation feeder 5 is dispersed. The combinational measuring device 1 controls driving of the radiation feeder 5 on the basis of the obtained control parameter. COPYRIGHT: (C)2004,JPO
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