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1. (WO2018050786) ULTRASONIC FLUID CLEARING SYSTEMS

Pub. No.:    WO/2018/050786    International Application No.:    PCT/EP2017/073211
Publication Date: Fri Mar 23 00:59:59 CET 2018 International Filing Date: Fri Sep 15 01:59:59 CEST 2017
IPC: B08B 7/02
G02B 27/00
B23Q 11/08
B60S 1/02
F26B 5/02
Applicants: ECHOVISTA GMBH
Inventors: TREVETT, David
TREVETT, Patrick
SHIN, Mincheol
Title: ULTRASONIC FLUID CLEARING SYSTEMS
Abstract:
A system comprises a plate (235) and one or more transducers (200) coupled to the plate (235). Each of the one or more transducers (200) is operable to generate ultrasonic waves which propagate through the plate (235) in a propagation direction (240), for ultrasonically clearing droplets (250) of fluid from the plate (235). The plate (235) comprises one or more structures disposed in the path of ultrasonic waves and configured to control the propagation of ultrasonic waves in the plate (235) to achieve a predetermined amount of ultrasonic wave energy propagating in a direction opposite to the propagation direction (240). The value of one or more parameters of the shape of each of the one or more structures is predetermined to achieve a predetermined effect on ultrasonic waves incident on the structure.