$Noninvasive refractometer$

Noninvasive refractometer

The present invention pertains to the measurement of the refractive index of a medium, such as a fluid, through the wall of its container. The essential characteristic of the invention is that, by using at least two separate light paths that are of unequal length and that reflect from the wall/mediu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Harjunmaa, Hannu, Harjunmaa, Sinikka
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY ENZYMOLOGY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING OTHER ALCOHOLIC BEVERAGES PHYSICS PREPARATION THEREOF SPIRITS TESTING VINEGAR WINE
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Beschreibung
Zusammenfassung:	The present invention pertains to the measurement of the refractive index of a medium, such as a fluid, through the wall of its container. The essential characteristic of the invention is that, by using at least two separate light paths that are of unequal length and that reflect from the wall/medium interface, it is possible to perform the measurement of the refractive index of the medium so that the result is insensitive to the color and thickness of the wall.