Space-time correlation measurement and control system for underwater micro topographic variation

Abstract

The invention provides a space-time correlation measurement and control system for underwater micro topographic variation. Two ends of an inclined rod of an upper fixed bracket are fixedly connected with transverse rods respectively; the two ends of a longitudinal rod are fixedly connected with the transverse rods respectively; a vernier depth gauge is arranged on the longitudinal rod; the vernier depth gauge penetrates through a sensor fixing flat plate; a supporting rod is arranged at the lower part of the sensor fixing flat plate; the vernier depth gauge is fixed through a U-shaped clip on the supporting rod; a screw rod of each sensor fixing rod is fixedly connected with a first end of a stainless steel pipe after penetrating through the sensor fixing flat plate; and each ultrasonic transducer is arranged at a second end of the stainless steel pipe. According to the invention, difficulty problems in underwater micro topographic dynamic continuous measurement in flume experiment and a river model test are solved; the space-time correlation measurement and control system for the underwater micro topographic variation, provided by the invention, has the advantages of simple structure, reasonable sensor layout and higher application value; and a simple and feasible measurement method is provided for in-depth study on interaction between water and sediment, morphological development of a bed surface, variation of the bed surface and motion of the bed surface.

Description

technical field [0001] The invention relates to a time-space correlation measurement and control system for underwater micro-topography changes, belonging to the technical field of underwater topography exploration. Background technique [0002] River dynamics is a science that studies the interaction between water and sand. Generally, the sediment on the river bed will form a variety of bed shapes under the action of water flow. The shape of the bed surface will affect the flow of water flowing through it, and the near-bottom bed surface is the main area where the turbulence of water flow occurs and develops. Change. [0003] In view of the complexity of the problem and the difficulty of directly measuring the interaction between bed surface morphology and water flow in natural rivers, the current research on the interaction between bed surface shape and water flow is still concentrated in the laboratory, and the research methods generally use flume tests or river engineer...

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the problem that the existing underwater bed surface shape measurement technology cannot measure the dynamic development process of the bed surface shape, and the measurement of different points needs to be realized by moving the plane position of the stylus, which consumes a lot of manpower and time. problems, and then provides a space-time correlation measurement and control system for underwater micro-topography changes

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