Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Viscosity
Patent
1985-01-18
1986-04-01
Levy, Stewart J.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Viscosity
374 43, G01N 1100, G01N 2518
Patent
active
045789886
ABSTRACT:
Disclosed is a method for measuring changes in a physical property of a liquid or semisolid material which comprises placing a thin metal wire in the material; passing an electric current through the thin metal wire in such a way that the temperature difference between the material and the thin metal wire is kept constant; measuring the intensity of the electric current; and calculating the heat transfer coefficient at the surface of the thin metal wire on the basis of the measured intensity of the electric current and thereby detecting changes in a physical property of the material. This method makes it possible to detect, for example, changes in the coefficient of kinematic viscosity of a food having the form of a gel or changes in the condition of thrombus formation in a blood vessel.
REFERENCES:
patent: 4501145 (1985-02-01), Boegli et al.
Parsons, Jr. et al., Measurement of Properties of Liquids and Gasses Using a Hot-Wire Technique, in Rev. Sci. Instr. 49(10), pp. 1460-1463, Oct. 1978.
Nagasaka et al., Simultaneous Measurement of the Thermal Conductivity and Diffusivity of Liquids by Transient Hot-Wire Method, in Rev. Sci. Instr. 52(2), pp. 229-232, Feb. 1981.
Kitazawa et al., Measurement of Thermal Conductivity of Liquids by Transient Hot-Wire Method, in Jour. of JSME, 24(188), pp. 374-379, Feb. 1981.
Hayashi Hiromichi
Hori Tomoshige
Kako Masatoshi
Levy Stewart J.
Roskos Joseph W.
Snow Brand Milk Products Co. Ltd.
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