Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1986-04-10
1988-04-26
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356246, G01N 1506
Patent
active
047407093
ABSTRACT:
A sensing device for obtaining optical density or light scattering measurements or other, in a turbulent liquid comprising a light source and a facing sensor located within a housing. The housing is provided with orifices through which liquid flows into the housing for measurement. The liquid entering the housing is slowed by passage through the orifice, and the bubbles of the liquid rise to the upper region of the housing, out of the measurement region, e.g. out of the line of the sight between the light source and the sensor.
REFERENCES:
patent: 3819278 (1974-06-01), Muller
patent: 3849002 (1974-11-01), Hach
Leighton Stephen B.
Maxwell G. Maret
Nelms David C.
Seo Chung
The United States of America as represented by the Department of
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