Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1989-04-21
1991-01-22
Rosenberger, Richard A.
Optics: measuring and testing
By particle light scattering
With photocell detection
356343, G01N 2100
Patent
active
049866605
ABSTRACT:
An apparatus for determining the amount of particle suspension in a fluid by measuring radiation reflection on the particles, comprises a beam of radiation directed into the fluid; first and second photovoltaic detectors for picking up at least a portion of the beam of radiation reflected from the particle suspension in the fluid; and a circuit for comparing the output of the first detector relative to the output of the second detector to obtain the amount of particle suspension in the fluid. The detectors are positioned such that the output of the first detector increases relative to the output of the second detector as the amount of particle suspension in the fluid increases.
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Waller, M. H., Measurement and Control of Paper Stock Consistency, Instrument Society of America, 1983, pp. 23-24, 35.
Rosenberger Richard A.
The Electron Machine Corporation
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