Measuring and testing – Specific gravity or density of liquid or solid
Patent
1988-07-01
1989-08-01
Williams, Hezron E.
Measuring and testing
Specific gravity or density of liquid or solid
73 57, G01N 900, G01N 1112
Patent
active
048523887
ABSTRACT:
The present invention relates to a method for determining the density of a liquid using a falling needle viscometer. The viscometer includes a vertical cylinder which is filled with the liquid the density of which is to be determined. Using a funnel at the top of the cylinder, a first needle having a known density is allowed to fall through the liquid in the cylinder. The time that the needle falls between two marks, or transducers, spaced on the cylinder a known distance is measured from which the velocity of the needle through the liquid is calculated. Then a second needle having the same dimensions as the first and a known density different from that of the first needle is allowed to fall through the liquid. The time that the second needle falls between the two marks on the cylinder or transducers is measured and the velocity of the second needle through the liquid is calculated. Using the densities of the two needles and the velocities of the needles through the Newtonian liquid the density of the liquid is calculated using disclosed equations. Using the densities three needles and the velocities of the needles through the non-Newtonian liquid, the density of the liquid is calculated using the disclosed equations.
REFERENCES:
patent: 3697730 (1972-10-01), Clack et al.
patent: 3713327 (1973-01-01), Clemens
patent: 4637250 (1987-01-01), Irvine et al.
Irving et al., An Automatic High Pressure Viscometer; J. Physic, vol. 4, No. 3 (Mar. 1971).
Lohrentz et al., A. I. Ch. E. Journal, 6, No. 4., pp. 547-549 (1960).
G. S. Smith, J. Ins. Pet., 43, pp. 227-230 (1957).
Van Wazer et al., Viscosity and Flow Measurement, pp. 47-96, Interscience Publishers, New York, 1963.
Irvine, Jr. Thomas F.
Park Noh-Aeok
J & L Instruments Corporation
Williams Hezron E.
LandOfFree
Method for measuring density of Newtonian and non-Newtonian flui does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for measuring density of Newtonian and non-Newtonian flui, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for measuring density of Newtonian and non-Newtonian flui will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-124024