초록 ▼

There is described a battery driven atomizer in which an alternating voltage is applied to a piezoelectric actuation element to cause it to expand and contract and vibrate an atomizing orifice plate. The alternating voltage is controlled to produce a high amplitude vibration during a first portion o

There is described a battery driven atomizer in which an alternating voltage is applied to a piezoelectric actuation element to cause it to expand and contract and vibrate an atomizing orifice plate. The alternating voltage is controlled to produce a high amplitude vibration during a first portion of a drive period, to initiate atomization, and thereafter to produce a lower amplitude vibration to sustain atomization during the remainder of the drive period. The frequency of the alternating voltage is swept repeatedly during each drive period.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for operating a battery powered vibratory liquid atomizer of the type in which an orifice plate, to which liquid to be atomized is supplied, vibrates to drive the liquid from its surface in the form of a small liquid particles during drive periods which occur a

[ What is claimed is:] [1.]1. A method for operating a battery powered vibratory liquid atomizer of the type in which an orifice plate, to which liquid to be atomized is supplied, vibrates to drive the liquid from its surface in the form of a small liquid particles during drive periods which occur alternately with sleep periods, said method comprising:vibrating said orifice plate at the beginning of each drive period at a relatively high amplitude sufficient to clear a film of liquid from an outer surface of said orifice plate, to initiate atomization of the liquid; andthereafter vibrating said orifice plate at a relatively low amplitude sufficient to sustain the atomization during the remainder of the drive period.