Method for detecting puff-by-puff aerosol flow and aerosol generating device

• Main Authors: CAI JIJUN, ZHANG WENLIANG, CHEN CHAO, TONG ZHENMING, SHEN YI, LIU XINGXIN, XI TIANSHU, QIAN YITING
• Format: Patent
• Language: Chinese; English
• Published: 21.06.2024
• Subjects: CIGARETTES; CIGARS; HUMAN NECESSITIES; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MATCH BOXES; MEASURING; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; SMOKERS' REQUISITES; TESTING; TOBACCO

The invention discloses a puff-by-puff aerosol flow detection method, which comprises the following steps of: obtaining a first capacitance signal at a first position and a second capacitance signal at a second position in an nth puff suction process, the second position is a downstream position relative to the upstream position on the aerosol flowing path, and n is greater than or equal to 1; the delay time is determined by determining the maximum value of the cross-correlation function of the first capacitance signal and the second capacitance signal in the nth suction process; according to the delay time and the distance between the first position and the second position, the aerosol flow rate under the nth suction is obtained, and therefore the aerosol flow rate of the nth suction is obtained. By adopting the technical scheme, the accuracy of detecting the flow velocity and the flow of each aerosol when a user smokes can be improved. The invention further discloses a puff-by-puff aerosol flow detection de