DYNAMIC METHOD AND DEVICE FOR INSPECTING THERMAL-PHYSICAL PROPERTIES OF FLUIDS Russian patent published in 2005 - IPC

Abstract RU 2263305 C1

FIELD: test equipment.

SUBSTANCE: metal probe of vibration viscosimeter is disposed inside metal dish in tested fluid to make it thermally isolated from outer space. Viscosimeter is excited with preset frequency and with preset force. Temperature of the dish is changed monotonously and continuously to follow specified rule at speed to exceed speed of establishing processes of change in temperature of tested liquid inside the dish. Temperature of the probe is measured within whole preset range of changes in temperature of the dish as well as amplitude and/or phase and/or frequency of oscillations of the probe. Density, viscosity, thermal conductivity, heat capacity and thermal diffusivity of tested fluid are measured depending on fluid's temperature from the relation of heat diffusivity of fluid and from the relation of viscosimeter's probe forced oscillations. The main feature of the device realizing the method has to be the metal probe of viscosimeter made in form of copper ball or silver ball disposed in fluid for thermal insulation onto rod made of thermo-insulating material. Measuring converter of probe's temperature is made in form of thermocouple and built inside probe. Second measuring converter of probe's temperature, also made in form of thermocouple, is placed onto bottom of metal dish thermally insulated from environment.

EFFECT: improved efficiency of test.

10 cl, 5 dwg

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RU 2 263 305 C1

Authors

Vesnin V.L.

Kontorovich M.L.

Solomin B.A.

Khodakov A.M.

Chertorijskij A.A.

Galkin V.B.

Panichkin G.N.

Dates

2005-10-27Published

2004-07-19Filed