METHOD OF MEASURING TILT ANGLE AND WAVE HEIGHT OF WATER SURFACE RELATIVE EQUILIBRIUM STATE THEREOF Russian patent published in 2013 - IPC G01C13/00 

FIELD: physics.

SUBSTANCE: laser beam is directed along the Z axis vertically upwards from a submerged position through a certain water column and a water surface, the tilt angle of which is measured at the exit point of the beam, wherein a transparent diffusion plate is used to display in form of marks the laser beam deflected by the water surface and the deflected laser beam which is reflected from a mirror lying in parallel to the transparent diffusion plate at a distance H₂; a digital video camera with bitmap viewing is used to measure the value of deviations of said marks from the zero mark, after which, based on the simultaneously measured deviations ΔX₁, ΔX₂, ΔY₁, ΔY₂, values of corresponding instantaneous tilt angles of the water surface at a selected point and the wave height h of the surface at the same point are synchronously restored (calculated).

EFFECT: method for synchronous measurement of height and tilt angles of waves of water surface at one point, having sufficient high speed, reliability and easy implementation.

3 cl, 4 dwg