AEROSOL GENERATING DEVICE AND CONTROLLING METHOD OF AEROSOL GENERATING DEVICE

Provided is an aerosol generating device including a detachable cartridge including a liquid storing portion storing an aerosol generating material and a heater configured to evaporate the aerosol generating material, an electrode member disposed on one surface of a main body to face one surface of the cartridge, a capacitive sensor configured to apply a certain measurement signal to the electrode member and to receive a sensing signal received from the electrode member, and a processor configured to calculate a capacitance value based on the sensing signal received from the capacitive sensor and to calculate a remaining amount of the aerosol generating material stored in the liquid storing portion, based on the calculated capacitance value and a preset gain value.