HYDRODYNAMIC PROBE FOR MEASURING SEA SOUND SPEED Russian patent published in 2018 - IPC G01H5/00 

FIELD: acoustics; measurement equipment.

SUBSTANCE: invention relates to acoustic measurements and can be used, in particular, for measuring the vertical distribution of sound velocity in the sea. Hydrodynamic probe contains a nose part installed at a fixed distance from it, an acoustic cylindrical hollow cavity open at both ends with a wedge-shaped edge and a corresponding element of their attachment to each other. In this case, at the acoustic hollow cylindrical resonator, the wedge-shaped edge is made in the lower part of the annular one, the resonator is installed at a fixed distance from the nose of the probe, made in the form of a body of rotation and a load of a probe having a low hydrodynamic resistance, with an element of their fastening is a connecting sleeve with slits for water flow, along the axis of the cargo there is a through hole, the diameter of which is equal to the inner diameter of the acoustic cylindrical resonator, in the upper part of the hole along its axis flush with the upper surface of the load is installed by the corresponding elements of attachment to the load liner from the cylinder with a cone, forming with the surface of the hole an annular nozzle.

EFFECT: simplification of the hydrodynamic probe for measuring the speed of sound in the sea on the way of the vessel with an unlimited limiting depth of immersion.

1 cl, 2 dwg