Method and apparatus for measuring sidestream smoke

Method and apparatus for measuring sidestream smoke

Method and apparatus for continuously and instantaneously measuring sidestream smoke are provided. A hood assembly (14) is provided to fit over the ports of a conventional smoking maching (12). Sidestream smoke producedby test cigarettes (20) is continuously drawn through the hood by an exhaust syst...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MCRAE, DOUGLAS D, FRANCIS, BOBBY W, COMES, ROGER A, BROWN, LEONARD, E.,JR, GREEN, RANDALL K
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CIGARETTES
CIGARS
HUMAN NECESSITIES
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MACHINES FOR MAKING CIGARS OR CIGARETTES
MEASURING
PHYSICS
SMOKERS' REQUISITES
TESTING
TOBACCO
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Beschreibung
Zusammenfassung:Method and apparatus for continuously and instantaneously measuring sidestream smoke are provided. A hood assembly (14) is provided to fit over the ports of a conventional smoking maching (12). Sidestream smoke producedby test cigarettes (20) is continuously drawn through the hood by an exhaust system (16). A laser beam is passed through the smoke one or more times before the beam is sensed by a photodiode detector (62). An electrical signal from the detector, representing the light transmission, is received by a strip recorder or computer system. The transmission measurements are used to calculate the extinction coefficient of the smoke for comparison purposes.