G - Physics – 01 – N
Patent
G - Physics
01
N
73/58
G01N 21/49 (2006.01)
Patent
CA 1256713
ABSTRACT A fiber optic probe having a sealed, cylindrical housing closed at one end by a transparent window and at the opposite end by a wall through which a plurality of optical fibers extend toward the window. Adjacent the window the fibers are radially and cir- cumferentially spaced about the axis of the housing and converge along lines which intersect one another at a common point on the housing axis that is adjacent or beyond the outer surface of the window. At least one of the fibers transmits light from a source through the window to illuminate a zone of a fluid sample or medium, whereby particles present in such zone scatter light therefrom to the remaining fibers for transmission through the probe housing to light detecting and measuring apparatus The fiber optic probe is adapted for determining the size and/or concentration of moving, light reflective particles in suspension in the fluid medium.
504832
Chrisman Ray W.
Haese Nathan N.
Mclachlan Richard D.
Meadows Michael D.
Smart & Biggar
The Dow Chemical Company
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