Abstract
Works with different friction coefficients can be separated by being transported to different directions when phase difference of elliptical vibration is controlled adequately. On condition that works are transported with jumping, metal's phase difference with zero velocity increases whereas plastic's phase difference with zero velocity hardly increases. This paper demonstrates that works can be separated at high velocities, widening the margin between works' phase differences with zero velocity. In the verification experiment using electronic parts whose face side is metallic and reverse side is plastic, many works can be separated by face/reverse side at short times.
