METHOD TO DETECT VISCOSITY OF NON-NEWTONIAN LIQUIDS Russian patent published in 2015 - IPC G01N11/04 

FIELD: measurement equipment.

SUBSTANCE: method to detect viscosity of non-Newtonian liquids includes their pumping via a channel, and viscosity is detected on the basis of the expression $${\eta }^C=\frac{N^{С}\cdot \left(r-r_{AV}\right)}{2\cdot \pi \cdot r_{AV}\cdot {\left({\vartheta }_{AV}^{С}\right)}^3\cdot t},$$ , where: η^C - viscosity of non-Newtonian liquid, Pa·s; N^C - useful power spent for second shift, W; r - radius of inner surface of pipe, m; r_AV - average radius of non-Newtonian liquid flow, m; $${\vartheta }_{AV}^{С}$$ - average speed of water suspension flow, m·s^-1; t - time of suspension jet leak from attachment, s.

EFFECT: simplified method to determine viscosity of non-Newtonian liquids mainly due to use of values of power spent for second shift and produced with the help of measurement equipment as input parameters.