Refractive index measurement cell

Details Refractive index measurement cell Refractive index measurement cell

1987-07-15

1988-07-12

Evans, F. L.

Optics: measuring and testing

Refraction testing

Prism forming fluid specimen container

356130, 356246, G01N 2141

Patent

active

047566183

ABSTRACT:
A refractive index measurement cell for liquid samples and method for measuring refractive indices of liquids are described which comprise a transparent tubular member closed at one end defining a sample volume of semicylindrical shape with respect to an axis for containing a liquid and having a diametrically disposed wall element including a flat surface defining the sample volume and containing the axis; a reference line coincident with the axis on the flat surface; a light source for projecting a light beam through the wall element, reference line and sample volume, whereby the beam is refracted at the flat surface; and a detector, selectively positionable about the axis of the tubular member, for detecting the light beam transmitted through the sample volume and for measuring the angular position of the beam about the axis.

REFERENCES:
patent: 3450476 (1969-06-01), Rando
patent: 3636360 (1972-01-01), Oishi et al.
patent: 3797940 (1974-03-01), King
Physics/Chemistry Catalog 1983/1984, Central Scientific Company, Franklin Park, Ill. p. 135.

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