Electro-optical method and system for in situ measurements...

Details Electro-optical method and system for in situ measurements... Electro-optical method and system for in situ measurements...

G - Physics

01

N

73/59

G01N 15/02 (2006.01)

Patent

CA 1075488

ABSTRACT OF THE DISCLOSURE A system and method provides in situ measurements of the size of particulate matters suspended in fluid medium. beam of intermittently interrupted electromagnetic radiation is directed through a portion of the fluid medium and radiation backscattered from a first optically defined region disposed within the fluid medium at a location having substantially uniform incident illumination is detected and utilized to provide an indication of the size and distribution of the suspended particles. To assist in assuring particles under surveillance are within the first region at the time the measurements are made, light backscattered from a further region disposed in the fluid medium and containing the first region is collected and compared with the intensity of the radiation backscattered from the first region prior to making the measurements.

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