DYNAMIC LIQUID DENSITY SENSOR Russian patent published in 2019 - IPC G01N9/00 G01N27/02 

FIELD: instrument engineering.

SUBSTANCE: invention relates to instrument-making and can be used for control of liquid density in various vessels. Dynamic liquid density sensor includes a bridge circuit with a measuring resistor in its arm, which is arranged along the length of the monitored liquid column, with a series-connected operational amplifier, an analogue-to-digital converter and an on-board computer. Besides, the proposed device has a tubular plastic housing with filtering slots at the bottom, inside which a metalized foil cup with a terminal for electrode connection is inserted, and a metal disc with a terminal for connection of the other electrode is installed on the bottom of the housing so that a calibrated cylinder with the tested liquid is formed between the base of the cup and the metal disc.

EFFECT: continuous control of liquid density in any vessel, conducting and non-conductive, high accuracy of instrument reading.

1 cl, 2 dwg