MODE OF ULTRASOUND MEASUREMENT OF CONCENTRATION OF WEIGHTED SUBSTANCES IN A FLUID MEDIUM Russian patent published in 2007 - IPC G01N15/06 G01N29/02 

FIELD: the invention is designed for ultrasound measurement of concentration of weighted substances in a fluid medium.

SUBSTANCE: the essence is in that simultaneously with leading-in and receiving of ultrasound impulses they take away samples of the fluid medium with a weighted substance and convert ultrasound impulses reflected from the weighted substances in the fluid medium substances into electric impulses and in-series calculate on a comparator a number of the reflected ultrasound impulses on each of the prescribed level of voltage, at that during selection of each sample (l...n) they make accounts, at the first measurement all reflected impulses will go via the comparator (because the voltage level equals to 0), on a microcontroller they count impulses passed through the comparator during the measuring interval, at each following measurement (during one cycle) with the aid of the microcontroller they increase the voltage level on the comparator, count and remember the number of impulses passed during the measuring interval, at each following measuring (during one cycle) they count and remember the number of impulses passed during the measuring interval, for each succession of accounts they calculate the average arithmetic value (besides null level), then they count the average arithmetic value of accounts (M) having data of a laboratory analysis and results of the calculated average arithmetical values of this succession of accounts (M) they find concentration of weighted substances in liquid.

EFFECT: increases accuracy of ultrasound measurement of concentration of weighted substances in a fluid medium.

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