Strait Water Flux Observation Method Based on Induced Current Measurement

A technology of inductive current and water flux, which is applied in the direction of measuring the movement of open-air water sources, measuring devices, surveying and navigation, etc., can solve the problems of target potential difference, submerged target signal, and small flow rate of the observed target, and achieve the effect of improving reliability

Active Publication Date: 2019-04-02
THE FIRST INST OF OCEANOGRAPHY SOA
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Problems solved by technology

However, if this observation system is established in the coastal waters of cities, the observed target flow rate may be small, resulting in a small target potential difference, and the deviation caused by the artificial estimation of the above parameters may submerge the target signal

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  • Strait Water Flux Observation Method Based on Induced Current Measurement
  • Strait Water Flux Observation Method Based on Induced Current Measurement
  • Strait Water Flux Observation Method Based on Induced Current Measurement

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Embodiment Construction

[0026] The detection method of the present invention will be described in detail below in conjunction with the examples.

[0027] System Design of Strait Water Flux Observation Method Based on Induced Current Measurement——Taking Jiaozhou Bay as an Example

[0028] 1.1 Selection of observation equipment

[0029] It is not uncommon in the world to observe the channel water flux based on submarine cable voltage measurement, and there are already mature reference opinions for the selection of relevant equipment for this system. The relevant observation system based on submarine cable current measurement is relatively rare so far. In order to grasp the accuracy and range of observation requirements involved in this system, the present invention uses the typical scale parameters of the mouth of Jiaozhou Bay to carry out the parameter requirements of the observation equipment of this system. analyze.

[0030] According to the above analysis, the induced current in the submarine cab...

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Abstract

The invention especially relates to an observation and measurement method for the water flux of a strait based on induced current, belonging to the field of observation and measurement of the water flux of straits. According to the invention, a sea-land system is regarded as an integral power source; a combination of the resistance of marine sediments and the resistance of a continental shelf is regarded as internal resistance R1 of the power source; an existing undersea cable is utilized, the resistance R2 of the undersea cable is estimated according to the material and length of the undersea cable, and an external power source U is in series connection with the undersea cable; delta phi o is a value actually measured by a traditional observation and measurement system, and delta phi v is a target measurement value; and the voltage delta phi v<0> of seawater is strictly calculated by using a series of formulas. According to the invention, all the parameters can be strictly determined by using a direct measurement method, so reliability of the method is greatly improved, and possible errors caused by estimation of conductivity of seawater, both sides of the strait, sediments and the like are avoided.

Description

technical field [0001] The invention relates to the field of strait water flux observation, in particular to a strait water flux observation method based on induced current measurement. Background technique [0002] Ocean observation is an indispensable method and approach to study and understand ocean phenomena and grasp the internal laws. With the development of science and technology, humans have mastered various ocean observation methods. Among them, the idea of ​​ocean observation technology based on submarine cables is to observe the seawater flux and other hydrological characteristics of the section where the submarine cable is located through the sensors installed on the submarine cable. This technology can play the advantages of long observation time, strong data continuity and low comprehensive cost in the study of water exchange between a certain bay and the open sea, ocean-scale ocean circulation and tsunami warning. [0003] The seawater flux observation of ke...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C13/00
CPCG01C13/002
Inventor 连展官晟魏泽勋王岩峰王新怡王立伟
Owner THE FIRST INST OF OCEANOGRAPHY SOA
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