AEROSOL-GENERATING DEVICE WITH PUFF DETECTION AND METHOD FOR PUFF DETECTION

摘要

The present invention relates to an electrically heated aerosol-generating device for heating an aerosol-forming substrate capable to form an inhalable aerosol when heated. The device comprises a receiving cavity for removably receiving at least a portion of an aerosol-generating article including the aerosol-forming substrate to be heated. The device further comprises an electrical heater for heating the aerosol-forming substrate when the article is received in the receiving cavity. In addition, the device comprises a detector composing a temperature sensor to detect a temperature change of air flow in the receiving cavity indicative of a user taking a puff. The temperature sensor is arranged outside the cavity at a predefined distance to a test spot on an inner surface of the receiving cavity. The invention further relates to a method for detecting a user's puff in use of such an aerosol-generating device.