David E. Altobelli,Russell H. Beavis,Larry B. Gray,Derek G. Kane
申请号：
US16371792
公开号：
US20190224425A1
申请日:
2019.04.01
申请国别(地区):
US
年份:
2019
代理人:
摘要：
An apparatus for metering the delivery of an aerosol. The apparatus has a variable acoustic source and a microphone, both acoustically coupled to a volume having a fluid region and an air region. The apparatus may also include a processor to determine a volume of the air region based on signals received from the microphone and the variable acoustic source. A fluid valve is coupled to the processor, and is configured to allow an amount of fluid to exit the fluid region associated with the volume of the air region. An atomizer, coupled to the fluid region, is configured to aerosolize at least a portion of the fluid.
