| http://www.w3.org/ns/prov#value | - The piezoelectric vibration control system of this embodiment is, as shown in FIG. 4, directed to the parts feeder 1 as a vibrating unit for feeding various types of parts to a machine and includes the parts feeder 1 shown in FIG. 1, a power amplifier 12 which is a driving unit for driving the parts feeder 1, and a control unit 14 for outputting a drive signal to the power amplifier 12.
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