Aerosol generation systems, including determination of liquid levels, and methods for determining liquid levels in aerosol generation systems

摘要

There is provided an electrically operated aerosol-generating system (100) comprising a liquid storage portion (113) storing a liquid (115) from which aerosol may be generated, an electric heater (119), a capillary wick (117) positioned between the liquid (115) in the liquid storage portion (113) and the electric heater (119) and configured to convey liquid (115) from the liquid storage portion (113) to the electric heater (119) and electric circuitry (109) connected to the electric heater (119), the electric circuitry (109) configured to: activate the electric heater (119) for a vaporising period in response to a user input to vaporise liquid (115) in the capillary wick (117), a first predetermined time after the vaporising period activate the heater (119) for a second period, record a temperature measurement of the heater (119) during the second period, and determine a liquid level in the liquid storage portion (113) based on the temperature measurement.