Device and method for measuring response to fluctuating pressure of wind generated wave lakebed of shallow lake

Abstract

The invention discloses a device and a method for measuring response to fluctuating pressure of a wind generated wave lakebed of a shallow lake. The device comprises a pressure sensor, a gas guide cable, a fixing bracket, a movable bracket, an upright post with scales, an acquisition card and a voltage stabilized direct-current source, wherein the pressure sensor is fixed at one end of the movable bracket; the other end of the movable bracket is fixed on the fixed bracket through a sleeve; the fixed bracket is fixed to a bed surface to be tested through a base plate; the bottom of the vertically moving upright post with the scales is fixed to the movable bracket; the pressure sensor is connected with the voltage stabilized direct-current source and the acquisition card through the gas guide cable; and the acquisition card is connected to a computer. The device can acquire 64,000 pressure data maximally in one second, and can accurately acquire the fluctuating pressure of wind generated waves.

Description

technical field [0001] The invention relates to a measurement technology in the technical field of water conservancy and water environment engineering, in particular to a measurement device and method for fluctuating pressure response of wind-induced waves at the bottom of a shallow lake. Background technique [0002] Wind waves are waves caused by wind. The wind blows to the water surface and rubs against the lake water. The lake water is affected by the wind and drifts with the wind. The water surface begins to rise and fall, forming waves. In shallow lakes, due to the shallow water depth, wind and waves will have a great impact on the bottom bed. Formally, it shows that there will be a response to fluctuating pressure at the bottom of the water. This fluctuating pressure has a great influence on the suspension of the bottom sediment. Therefore, accurate measurement of the fluctuating pressure is of great significance for studying lake sediment movement and improving lake...

AI Technical Summary

Problems solved by technology

Although the technology described in this patent can measure the osmotic pressure inside the soil, due to the lack of key components such as built-in anti-radio frequency and anti-electromagnetic interference circuits, it cannot measure the pulsating pressure at the bottom of the lake caused by wind-induced waves in shallow lakes, and it cannot be accurately determined. Depth of water at measuring point

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