USING FLUID DENSITY FOR CHECKING VAPOR PRESSURE Russian patent published in 2022 - IPC G01F1/84 

FIELD: fluid density measurement.

SUBSTANCE: meter electronics (20) is provided for using a fluid density measurement to check the vapor pressure. The measuring electronic device (20) includes a processing system (200) connected with the possibility of communication with the measuring node (10) having a fluid, the processing system (200) is configured to determine the vapor pressure of the fluid by detecting the phase transition of the fluid in measuring node (10), measure the density of the fluid based on the resonant frequency of the measuring node (10), obtain the vapor pressure from the measured density, and compare the determined vapor pressure with the obtained vapor pressure.

EFFECT: invention makes it possibile to accurately determine vapor pressure in real time while maintaining safety by eliminating sample capture and removal to the lab for testing.

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