APPARATUS AND METHOD FOR DETECTING CONTAMINANTS IN MATERIAL

FIELD: equipment and method for detecting foreign matter or contaminants in material, such as tobacco leaves. ^ SUBSTANCE: method involves directing infrared beams onto material on conveyor; measuring respective values of reflection intensity of components with wave lengths of 1,200 nm and 1,700 nm,...

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Bibliographische Detailangaben
Hauptverfasser:	SATO KIJOMI, KIDA SINZO, FUTAMURA TSUJOSI
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CIGARETTES CIGARS HUMAN NECESSITIES INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING ORCHEWING MEASURING PERFORMING OPERATIONS PHYSICS POSTAL SORTING SEPARATING SOLIDS FROM SOLIDS SMOKERS' REQUISITES SNUFF SORTING SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING TESTING TOBACCO TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: equipment and method for detecting foreign matter or contaminants in material, such as tobacco leaves. ^ SUBSTANCE: method involves directing infrared beams onto material on conveyor; measuring respective values of reflection intensity of components with wave lengths of 1,200 nm and 1,700 nm, or 1,940 nm reflected by material; comparing measured values of reflection intensity and values of reflection intensity of components with characteristic wave lengths, inherent with said material; detecting contaminants in material in accordance with comparison results. ^ EFFECT: increased efficiency in detecting foreign matter in any sort or diversity of tobacco leaves, when apparatus is positioned at one side of tobacco leaves transportation path. ^ 11 cl, 9 dwg