Electric conduction-type internal wave measurement system

A measurement system and conductance technology, applied in the field of measurement systems, can solve problems such as difficulty in obtaining internal waves, heavy post-processing workload, and inability to measure synchronously by the schlieren method, achieving long recording time, high resolution, and high reliability Effect

Inactive Publication Date: 2011-09-07
CHINA NAT OFFSHORE OIL CORP +2
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, due to limited samples, it is difficult for the schlieren method to obtain the complete process from generation to disappearance of internal waves, and there are problems such as short recording time and heavy post-processing workload. Moreove

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  • Electric conduction-type internal wave measurement system
  • Electric conduction-type internal wave measurement system

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Embodiment Construction

[0008] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0009] Such as figure 1 As shown, the present invention comprises a miniature conductance sensor array 1, and the output terminal of the miniature conductance sensor array 1 is sequentially connected with a range switcher 2, an amplifier 3, a conductivity / density converter 4, an analog / digital converter 5, a Computer 6 and an internal wave waveform real-time display window 7. The micro conductivity sensor array 2 can sensitively detect the change of conductivity in the flow field. The range switcher 2 automatically adjusts the gain of the amplifier 3 according to the conductivity signal of the miniature conductivity sensor array 1 . The conductivity / density converter 4 can convert the conductivity signal of the liquid into a density signal, and then further convert the density signal into a digital signal through the analog / digital converter 5 and i...

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Abstract

The invention relates to an electric conduction-type internal wave measurement system, which is characterized in that: the system comprises a micro conductive sensor array for detecting the change of electric conductivity in a flow field, an output end of the micro conductive sensor array is sequentially connected with a range switcher, an amplifier, an electric conductivity/density converter, an analog/digital converter, a computer and an internal wave waveform real-time display window; the range switcher automatically adjusts the gain of the amplifier according to an electric conductivity signal of the micro conductive sensor array; the electric conductivity/density converter converts the electric conductivity signal of liquid to a density signal which is then further converted, by the analog/digital converter, into a digital signal for being input into the computer, and the digital signal is analyzed and processed by internal wave signal real-time processing software in the computer to obtain integral real-time internal wave waveform, in the end, the internal wave waveform is input to an internal wave waveform real-time display window for being displayed. The system has the advantages of long recording time, high resolution, good synchronism, high reliability and the like, and is suitable for the real-time measurement and analysis of internal waves at different density layers in a variety of density stratification water tanks.

Description

technical field [0001] The invention relates to a measurement system, in particular to a conductance type internal wave measurement system capable of performing real-time on-line measurement and analysis of high-resolution internal waves in space and time. Background technique [0002] In the actual ocean, the temperature, salinity and density of seawater change with space and time, which will generate ocean internal waves that affect the safe operation of underwater vehicles and marine engineering structures. Stratified flow test tank is the main equipment for studying the characteristics of ocean internal waves, and the simulation and measurement of internal wave waveforms are the main technical conditions for experimental research. For the internal wave test of density stratified flow flume widely used at present, obtaining the internal wave information synchronized with the load and motion of the marine structure model is one of the key technologies to realize the test. ...

Claims

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Application Information

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IPC IPC(8): G01M10/00G01N27/02G01N9/00
Inventor 范模屈衍尤云祥胡天群
Owner CHINA NAT OFFSHORE OIL CORP
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