FEEDER FOR DIGITAL BALANCE AND DIGITAL BALANCE EQUIPPED WITH THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a feeder for a digital balance which estimates the transport amount of an object to be weighed with high precision regardless of a temporal change in the vibration of the feeder for a digital balance and a digital balance equipped with the same.

SOLUTION: A strain detection member 3 as an amplitude detection means detects the vibration amplitude a of a feeder pan 1 caused by a vibrator 2 (Step S104). A control unit 41 functions as a transfer amount calculation means 41b and integrates the temporal change of the vibration amplitude a of the feeder pan 1 detected by the strain detection member 3 to calculate an estimated transport amountΣof the object to be weighed (Step S108). In addition, the control unit 41 functions as a control means 41a and controls at least either one of the drive amplitude and drive time of the vibrator 2 on the basis of the estimated transport amountΣ.

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