METHOD FOR AUTOMATIC DETERMINATION OF PARAMETERS OF THE STATE OF SEAWATER IN OCEAN CONDITIONS Russian patent published in 2021 - IPC G01N29/02 G01N29/24 G01N29/32 G01K13/02 

FIELD: oceanology.

SUBSTANCE: invention is intended for oceanological research and can be used in the construction of autonomous and probe devices for determining complex hydrophysical parameters of seawater, and can also be used to control various impurities, gas bubbles, suspended solid particles not only in seawater, but also in river and wastewater, and to study physical properties of water, mixtures of liquids and clarify empirical expressions when determining thermodynamic values and molecular properties of liquids. The essence of the invention is that, using synchronously measured values of temperature T, pressure P, speed of sound in water c, the density ρ and salinity S are determined according to a developed algorithm. Measured coefficients of scattering k_s and attenuation k_a allow one to determine an absorption coefficient k_ab=k_a-k_s and then determine a total dissipative coefficient $$$ , where k_ab is the absorption coefficient; ρ is the density of seawater; c is the speed of sound in water; ƒ is the frequency of an ultrasonic signal. All measured values are determined on a stable reference base for a small volume of liquid, which allows one to increase the spatial, and due to synchronous measurement, the temporal resolution.

EFFECT: technical result is an increase in the resolution with a complex determination of parameters of the state of seawater on a quasi-real time scale.

1 cl, 3 tbl, 1 dwg