Optically based measurement of fluid parameters

Details Optically based measurement of fluid parameters Optically based measurement of fluid parameters

G - Physics

01

N

73/59

G01N 21/49 (2006.01) G01N 21/51 (2006.01) G01N 21/05 (2006.01)

Patent

CA 1218248

ABSTRACT OF THE DISCLOSURE Optical measurement apparatus includes a cell adapted to receive fluid for testing and a light source arranged to direct an incident light beam into the cell. Means is provided to detect at least a pre-determined portion of light emitted by a segment of the cell transversely of the direction of said incident light beam. The light source and the cell are arranged so that the light incident on the cell is not collimated but, as it traverses said segment of the cell, is confined to the cell by total internal reflection, unless otherwise scattered by particles in the cell. A corresponding method is also claimed.

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