Wave direction measurement method based on differential pressure method

Abstract

The invention provides a wave direction measurement method based on a differential pressure method, belonging to the field of marine monitoring technology measurement. The method comprises the steps: laying a multi-point pressure sensor in a geometrical shape underwater; synchronously acquiring pressure values of a plurality of pressure points, and converting each pressure value into a water depth value corresponding to each pressure point; and analyzing the pressure difference change of the pressure values at multiple points at the same moment, and judging the wave direction according to the pressure difference change rule. According to the method, the pressure sensor is arranged underwater, and no buoy needs to be arranged on a sea surface, so the safety and the stability of measuring equipment are improved; the pressure sensor is not affected by ocean current, wind, an anchor system and other environments, and the problem of measurement wave direction distortion is not prone to occurring; the problems that a wave buoy is low in use safety and prone to being lost and stolen and to being crashed by a fishing boat are solved; and compared with a wave buoy measurement method in which ships need to be rented every time, the method is lower in use and maintenance cost.

Description

technical field [0001] The invention belongs to the field of marine monitoring technology measurement, and in particular relates to a wave direction measurement method based on a differential pressure method. Background technique [0002] Wave is one of the most basic elements of the ocean, an important content of marine scientific research and an important parameter of marine engineering design. At the same time, wave is also one of the most difficult parameters to obtain in hydrometeorological elements. Ocean waves have three elements: wave height, wave period, and wave direction. At present, there are many methods for measuring wave height and wave period, but the measurement of wave direction is a world technical problem. Generally, wave buoy measurement based on the principle of gravitational acceleration is used. [0003] At present, the instruments and methods capable of measuring waves in the world mainly include: 1. Optical wave measuring buoys; 2. Wave buoys (incl...

AI Technical Summary

Problems solved by technology

During the use of wave buoys, the influence of current, wind and mooring on the movement of the buoy itself will cause the measured wave direction to be distorted, and the use of wave buoys is low in safety, easy to be lost, stolen and damaged by fishing boats. It is difficult to achieve the purpose of long-term use of wave buoys at sea

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