Abstract
This paper presents self-cleaning drop free glass (DFG) through acoustic atomization and oscillation for autonomous driving and IoT technology. The behavior of an oscillating droplet actuated by a ring-piezoactuator is investigated by high-speed images in a wide range of acoustic amplitudes and frequencies. The atomization and oscillation of a droplet are separately tested using prepared DFG samples. The droplet atomization remains tiny satellite droplets on the surface of the DFG after the operation, while the droplet oscillation clearly removes the droplet from the surface. The DFG can be used to efficiently clean water and viscous droplets generated on the surface of various optical sensors.
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