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A seabed surface subsidence observation device and measurement method

A technique for subsidence observation and seabed surface application in the directions of measuring devices, height/horizontal measurement, surveying and navigation, etc., which can solve problems such as time-consuming, laborious, and poor precision, and achieve the effect of improving measurement accuracy and measurement accuracy

Active Publication Date: 2021-07-23
OCEAN UNIV OF CHINA +1
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  • Abstract
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Problems solved by technology

[0004] The object of the present invention is to provide a seabed surface subsidence observation device and measurement method, which are used for long-term observation of seabed deformation, so as to solve the problem in the prior art of analyzing and studying the subsidence of the seabed surface by comparing water depth changes, which is time-consuming and labor-intensive. poor technical problem

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  • A seabed surface subsidence observation device and measurement method
  • A seabed surface subsidence observation device and measurement method
  • A seabed surface subsidence observation device and measurement method

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Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0044] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two compo...

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Abstract

The invention discloses a seabed surface subsidence observation device and a measurement method, which belong to the technical field of seabed observation. One end communicates with the outside world, the reference pressure chamber communicates with the other end of the pressure chamber, and the reference pressure chamber is provided with a pressure relief hole; a pressure relief plug is provided at the pressure relief hole to control the reference The pressure chamber is sealed and released; the pressure difference sensor is located in the pressure chamber, and the pressure difference sensor seals the two ends of the pressure chamber to detect the pressure difference between the inside and the outside of the reference pressure chamber. The seabed surface subsidence measurement method adopts the above-mentioned seabed surface subsidence observation device for measurement. The initial pressure in the reference pressure chamber is the same as the initial state pressure at the measuring point. The pressure measured by the differential pressure sensor is the differential pressure generated by the sinking distance of the seabed. The range of the differential pressure sensor is reduced to make the measurement results more accurate. accurate.

Description

technical field [0001] The invention relates to the technical field of seabed observation, in particular to a seabed surface subsidence observation device and measurement method. Background technique [0002] The seabed refers to the crustal surface composed of oceanic plates. The deformation and subsidence of seabed sediments are important features of seabed geological disasters, erosion and structural instability. [0003] At present, the sounding technology is mainly used to analyze and study the subsidence of the seabed by conducting multiple soundings on the monitoring points, and then comparing the changes in water depth. This method needs to measure the pressure of deep seawater, which requires a high range of pressure sensors, consumes huge financial resources, and is greatly affected by sea conditions, so the accuracy cannot be guaranteed. At present, there is no effective device that can accurately observe the subsidence of the seabed, especially the deep sea. C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/00
CPCG01C5/00
Inventor 张民生魏志明季念迎高冬梅
Owner OCEAN UNIV OF CHINA
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