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Deep water flow velocity measuring system

A technology of flow velocity measurement and deep water flow, which is applied in fluid velocity measurement, velocity/acceleration/shock measurement, and measuring devices, etc. It can solve the problems of low sampling frequency, poor measurement accuracy, and inability to directly measure the profile, etc., to achieve flexible and convenient operation, The effect of simple structure

Inactive Publication Date: 2006-08-02
CHINA NAT OFFSHORE OIL CORP +2
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Problems solved by technology

For the simulation of deep water flow in marine engineering pools, the former cannot directly measure the section, but can only measure the flow velocity at certain points, and the measurement accuracy of the latter is difficult to meet the test requirements
[0003] At present, there is the "Langlong" measuring profile velocity meter produced by Norwegian Nortek (NORTEK CN) company. This equipment is mainly used in the measurement of offshore and coastal velocity. Meet the measurement requirements of fixed-point flow velocity in marine engineering pools, profile flow velocity along the depth direction of the pool, and flow velocity distribution in the three-dimensional flow field of the entire pool

Method used

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Embodiment Construction

[0018] In order to describe the structure, features and effects of the present invention in detail, the following preferred embodiments are given below and described with reference to the accompanying drawings.

[0019] Such as figure 1 , figure 2 Shown, the present invention comprises a mobile device (not shown) that is erected on the ocean deep water model test engineering pool, and this mobile device (such as a trailer) is a common device for marine engineering pools, and it is arranged on the edge of the pool The slide rail moves back and forth, left and right. A computer 1, an A / D conversion card 2, a D / A conversion card 3, an encoder 4, an AC servo motor 5, an AC servo driver 6, a gear box as a reducer 7, a probe 8, and a fixed frame are arranged on the mobile device 9 and vertical lifting device 10. Wherein A / D conversion card 2 and D / A conversion card 3 are inserted on the PCI slot of computer 1, and one end of AC servo drive 6 is connected with D / A conversion card...

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Abstract

The present invention relates to a deep water flow flow-rate measuring system. Said system includes the following several portions: a mobile device, a fixing frame, a computer, an A / D conversion card, a D / A conversion card, an ac servo-driver, an ac motor, a coder, a speed reducer, a vertical lifting device and a probe. Said invention also provides the concrete action of the above-mentioned every portion and concrete connection relationship of all the above-mentioned portions. Besides, said invention also provides the working principle of said system.

Description

technical field [0001] The invention relates to a deep-water flow velocity measurement system, in particular to a deep-water flow velocity measurement system for marine engineering pools used in ocean deep-water model tests. Background technique [0002] With the continuous development of scientific research work in the field of ocean engineering, ocean engineering model tests have become an important part of ocean engineering scientific research. The requirements for the technical difficulty and precision of ocean engineering tank tests are getting higher and higher. The simulation accuracy of the marine environment such as wind, wave, and current directly determines the accuracy of the ocean engineering test. Therefore, marine engineering tests put forward higher requirements for the methods, methods and accuracy of wind, wave and current marine environment simulation measurement. In particular, deep water current measurement is more difficult. At present, there are two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/00G01P5/24G01M10/00
Inventor 李宁杨建民姚美旺刘杰鸣肖龙飞吕海宁
Owner CHINA NAT OFFSHORE OIL CORP
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