APPARATUS FOR DETERMINING SIZE-QUANTITATIVE CHARACTERISTICS OF PARTICLES SUSPENDED IN WATER Russian patent published in 2014 - IPC G01N15/02 G01S15/88 

FIELD: physics.

SUBSTANCE: apparatus includes a means of generating a parallel stream of optical radiation pulses, a means for optical formation of a reference volume with a rectangular cross-section, a means of moving the reference volume, a means of receiving and converting optical radiation into electrical signals and a means of detecting change in the amplitude of electric pulses, equipped with a means of determining the difference between a signal in the absence of pulses and a signal obtained in the presence of pulses, and a means which forms a time interval during pulse detection. The ratio of the dimensions of the sides of the rectangular cross-section of the reference volume is equal to the ratio of the maximum and minimum boundaries of the dimension range of detected particles. The apparatus includes a hydroacoustic estimation channel which consists of a multibeam echo sounder, parametric profile recorder pumping antennae, parametric profile recorder low-frequency receiving antennae, a probing pulse generator, an echo signal receiver, an acoustic signal processing unit, a control and display panel with an interface unit and a network hub, two side-scanning sonar devices whose antennae are mounted on the right and left sides, respectively.

EFFECT: broader functional capabilities.

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