Optical granulometer for measuring the concentration of particulate present in a fluid at low standard concentrations
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United States of America Patent
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Dec 30, 1997
Grant Date -
N/A
app pub date -
Jun 17, 1996
filing date -
Jun 15, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The granulometer uses a measuring laser beam (9) to illuminate particulate and, through the measure of the distribution of the light diffused by the examined particulate and gathered by a collecting lens (11), measures the concentration of particulate in the fluid in low concentration standards, the laser beam (9) being a converging one focused on a laser opaque shell (12) that partly covers the same lens.
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