US10744277 — Aerosol delivery device and method of operating the aerosol delivery device

USPTO Abstract

An aerosol delivery device includes an aerosol generator for generating an aerosol in the aerosol delivery device with a membrane and a vibrator which is configured to vibrate a fluid and to aerosolise the fluid by the membrane. The aerosol delivery device further includes a fluid reservoir for receiving the fluid to be aerosolised, the fluid reservoir being arranged in fluid communication with the membrane, a controller which is configured to sequentially operate the vibrator at a plurality of different vibration frequencies, a sensor which is configured to detect at least one electrical parameter of the vibrator for each of the plurality of different vibration frequencies, and a detector which is configured to detect the presence of fluid in contact with the membrane and/or in the fluid reservoir on the basis of the dependence of the detected values of the at least one electrical parameter on the vibration frequency.