METHOD AND DEVICE FOR MEASUREMENT OF INITIAL SHIFT OF LIQUID IN SMALL DIAMETER PIPELINE Russian patent published in 2015 - IPC G01L1/00 

FIELD: measurement equipment.

SUBSTANCE: invention relates to the field of measurement of voltage of initial shift (plasticity) of liquids in pipelines, for example milk in hoses of milking machines. The offered method of measurement of voltage of shift of milk column consists in that using one pressuriser the water column pressure h₁ = 20 - 25 mm is pre-set in a glass vessel connected by piping with a differential water manometer and a capillary, and the capillary piping is locked by a clip, and using the second pressuriser the portion of milk is sucked into the capillary to the column length l₀ = by 1 - 2 cm, then the pipeline is locked by a clip, the water column h₂ = 25 - 30 mm is established, the clip is unlocked. Meanwhile, using a stop watch the time of shift of milk column t₁ under the action of h₁ pressure is measured, and then the time of shift of the milk column t₂ under the action of the pressure h₂ is measured. The voltage of initial shift τ₀ is determined by the formula τ₀=9.8(D/4l₀)(t₁ ^_t₂)(t₁/h₁-t₂/h₂), where D - diameter of the capillary, mm. The device for measurement of voltage of shift of milk column contains the pressuriser connected with piping with the differential water manometer and glass vessel to which the horizontally located capillary and the second pressuriser is connected, and the piping from the vessel to the capillary and to the second supercharger is designed with a possibility of locking by a clip.

EFFECT: group of inventions is aimed at decrease of labour costs and improvement of accuracy of determination of voltage of initial shift of controlled liquid.

2 cl, 1 dwg