APPARATUS FOR MEASURING PHYSICAL PROPERTIES OF LIQUIDS Russian patent published in 2011 - IPC G01N27/22 G01R27/26 

FIELD: physics.

SUBSTANCE: apparatus for measuring physical properties of a liquid has a piece of a long line connected by communication lines and coupling elements to an electronic unit, said piece of long line being in form of a plurality of sections formed by a central metal core and at least two metallic cylinders which are coaxial with the core and nested and also successively shorted and opened at one of their ends, wherein the outer metallic cylinder is closed on both butt-ends by a first and a second metal plane, and the central metal core, which is shorted on of the ends by the first metal plane or open, has a length which is equal to the length of the outer metallic cylinder, and its other end is shorted with the second metal plane. In the disclosed apparatus, the surface of the central metal core and the outer surface of each of the coaxial nested metallic cylinders is covered on the entire length by a corresponding dielectric shell.

EFFECT: use of the present invention widens the range of its use with high measurement accuracy.

4 cl, 2 dwg