Electrically-rechargeable, smoke-free cigarette, includes sensor measuring airflow, with controller to time and modulate electrical heating which vaporizes nicotine

摘要

A control unit (28) includes a sensor (16) detecting the airflow through the body of the cigarette (12) and producing a related signal (U). The control unit activates the heater (30) when the sensor signal exceeds a given threshold level (Us). An airflow-related pressure is measured, producing the signal (U), which varies in accordance with the airflow. The heater is controlled as a function of the signal profile. The control unit continues heating for a predetermined interval at reduced level, even when the signal drops below the threshold.