摘要 |
A method of controlling evaporation of droplet cloud resulting from nebulization of a liquid expelled from a liquid droplet spray device is disclosed, wherein the liquid droplet spray device comprises a reservoir containing liquid, a perforate membrane plate, fluid interface means for feeding liquid from the reservoir to the membrane plate, ultrasound generating means for acting on the supplied liquid to cause it to be expelled as a spray of droplets through orifices of the membrane plate, and electronic control means for controlling activation of the ultrasound generating means.
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