A method for measuring the smoke velocity of the filter near the cut tobacco end during cigarette smoking

Abstract

The invention discloses a method for measuring the smoke velocity of the filter tip near the shredded tobacco end during the smoking process of the cigarette. The smoking process of the cigarette is simulated by using a smoke test machine, and the suction of the cigarette filter tip at different smoking frequencies f is measured by a pressure meter. end pressure P and the pressure P near the tobacco end of the filter 1 , use the Origin software to linearly fit the suction frequency f and the pressure P at the suction end of the filter to obtain a linear regression equation, and use the linear equation to obtain the corresponding pressure P near the tobacco end of the filter 1 pumping frequency f 1 , and finally remove the cigarette filter and use the flowmeter to measure the corresponding puffing frequency f 1 Lower the smoke flow value, so as to obtain the smoke velocity of the filter near the cut tobacco end during the cigarette smoking process. The method can solve the difficult problem of measuring the smoke velocity at the junction between shredded tobacco and the filter tip of the cigarette, is simple, effective and has good repeatability, and can be applied to the determination of the smoke velocity of various cigarette products under different suction pressures.

Description

technical field [0001] The invention relates to the technical field of measuring the smoke velocity of cigarettes, in particular to a method for measuring the smoke velocity of a filter tip near the shredded tobacco end during cigarette smoking. Background technique [0002] In recent years, the methods for measuring the velocity of the flue gas flow field include: (1) Velocimeter tube measurement method, which can observe and understand the trajectory of the airflow and the range of the jet, etc., and can obtain the velocity field direction map of the airflow and measure the airflow everywhere. speed value. Velocity tubes for airflow and burner jet measurement often include Pitot tubes, Prandtl tubes, etc.; (2) Hot wire (hot film) velocity measurement method, using the principle of heat balance to measure the average velocity and direction of the flow field , has the advantages of small size, wide frequency response, high sensitivity, and little interference to the flow fi...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, propose a method for measuring the smoke velocity at the end of the filter near the shredded tobacco in the cigarette smoking process, and solve the problem of measuring the smoke velocity at the junction of the shredded tobacco and the filter tip of the cigarette question

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