Patent ID: 7852465

Claim:
A device for generating an aerosol composed of multiple droplets of a test liquid, including: a first conduit for receiving a test liquid at an input flow rate; a second conduit for receiving pressurized gas; a merger region, open to the first conduit and to the second conduit for simultaneous reception of the test liquid and the pressurized air, adapted to generate an aerosol composed of multiple droplets of a first portion of the test liquid suspended in the gas; an aerosol exit passage open to the merger region for conducting the aerosol away from the merger region; a liquid exit passage open to the merger region and a measuring section downstream of the liquid exit passage, adapted to conduct an output flow comprised of a second portion of the test liquid away from the merger region; and a flow sensor disposed along the measuring section and adapted to generate a sensor signal indicating an output flow rate of the output flow.