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US 4,283,143 AGranted
Optical characterization of a suspension
AssigneeAmco Standards International
InventorJames A. Patterson
Life of this patent
Estimating the term…
Abstract
A method of determining the percent solids and particle size distribution of a liquid suspension is taught. A purely optical method of making these determinations is disclosed which is independent of the physical nature of the particles in suspension.
Claims2
A method of determining the particle size distribution of an unknown liquid suspension comprising:
- A. determining the nephelometric turbidity reading for a known standard liquid suspension;
- B. determining the nephelometric turbidity reading for an unknown liquid suspension;
- C. measuring the light scattering energy of the standard and unknown liquid suspensions;
- D. correcting the light scattering energy of the unknown liquid suspension for the physical characteristics of the suspended solids and liquid media;
- and
- E. comparing the corrected light scattering energy of the unknown liquid suspension with the light scattering energy of the standard suspension.
3 more elements
A method of determining particle concentration of an unknown liquid suspension comprising:
- A. determining the nephelometric turbidity reading for an unknown liquid suspension;
- B. correcting the nephelometric turbidity reading of the unknown liquid suspension for the physical characteristics of the suspended solids and liquid media;
- C. repeating step A for the unknown liquid suspension at a different concentration of suspended solids in liquid media to establish a linear relationship between the corrected nephelometric turbidity reading and concentration of the unknown liquid suspension.
Dependencies are inferred from the claim text.