Parts feeder and control method thereof

摘要

A vibration element such as a piezoelectric vibrator and an electromagnet vibrated at a predetermined frequency, a vibrating unit (14) provided with the vibration element (16), a discharger (12) being vibrated by the vibrating unit (14) for vibrating and discharging parts thereinside, and a drive circuit (20) for driving the vibration element (16) are provided and a drive signal is sent from the control portion (22) to the drive circuit (20) to conduct a predetermined drive. Detection signal obtained by vibration by the vibration element (16) is fed back, the feedback signal being Fourier-transformed. The transformed feedback signal is separated into a transfer signal component and a noise component other than the transfer signal component to control the vibrating unit (14) based on the transfer signal component. <IMAGE>