SYSTEM TO CONTROL LIQUID PARAMETERS Russian patent published in 2014 - IPC G01N21/59 G01F23/292 

FIELD: measurement equipment.

SUBSTANCE: system to control parameters of liquid in a cistern comprises a body 1 made in the form of a float, semirecessed due to a weight 2, arranged in its bottom part. In the upper part of the float 1 there is a primary light guide 3 fixed, the inlet of which is matched with a source of light 4, and the outlet via a multi-pass cuvette 5 with an integral multi-element photodetecting matrix 6. In the lower part of the float 1 there is an additional fibre-optical light guide 7, the inlet of which is matched with a source of light 4, and the outlet with the integral multi-element photodetecting matrix 6 is above the surface of the controlled liquid 8, besides, in the section of the additional light guide 7, submerged into the liquid, there is a bend 9 formed. The outlet of the matrix 6 is connected via a spectral filter 10 with a block of primary processing of information 11, which comprises a unit of separation and strengthening of a video signal 12.

EFFECT: expansion of functional capabilities with simultaneous simplification of a system and its increased reliability.

4 cl, 1 dwg