Method and device for measuring underwater noise generated by artificial rainfall

A technology for measuring noise and noise, which is applied in the field of noise measurement, can solve problems such as the difficulty of continuous observation in time and the difficulty of rainfall measurement, and achieve the effects of easy implementation, simple measurement method, and improved measurement accuracy

Inactive Publication Date: 2019-02-12
HARBIN ENG UNIV
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Problems solved by technology

[0007] To sum up, in the prior art, it is very difficult to directly mea

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  • Method and device for measuring underwater noise generated by artificial rainfall
  • Method and device for measuring underwater noise generated by artificial rainfall
  • Method and device for measuring underwater noise generated by artificial rainfall

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings.

[0038] figure 2 Middle: 1-water supply tank; 2-water pump; 3-pressure gauge; 4-flow meter; 5-console; 6-water pipe; 7-reverberation water tank; 8-nozzle system.

[0039] A method and device for measuring underwater noise generated by artificial rainfall

[0040] The invention provides a method and device for measuring underwater noise produced by artificial rainfall, wherein the measurement system includes an artificial rainfall simulation system, a fan, a reverberation water tank, a hydrophone array, and a data acquisition system. The artificial rainfall simulation system produces artificial rainfall with different rainfall; the fan can simulate the influence of wind on rainfall; the rainfall hits the water surface of the reverberation tank filled with water, generating noise underwater; the hydrophone array is arranged in the reverberation tank The rainfall noise ...

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Abstract

The invention belongs to the field of noise measurement technology research, and particularly relates to a method and device for measuring underwater noise generated by artificial rainfall. The methodcomprises the steps of: adjusting the height of an artificial rainfall simulator to control the speed at which the rainfall hits the water surface; opening a nozzle of the artificial rainfall simulator and selecting raindrops with different particle sizes; adjusting the gear of a fan to generate different wind speeds so as to control the incident angle of rainfall; measuring the rainfall capacityby using a rain gauge; measuring noise signals by a hydrophone array in a reverberation tank through a reverberation method; acquiring the noise signals measured by the hydrophone array by utilizingthe data acquisition system; and processing data to obtain underwater noise signals generated by the artificial rainfall. The method and device area capable of strictly controlling the remaining variables, such as environmental noise and wind noise, affecting the rainfall noise in the laboratory, controlling the particle sizes of the artificial rainfall, and measuring the rainfall noise without interferences.

Description

technical field [0001] The invention belongs to the field of noise measurement technology research, in particular to a method and device for measuring underwater noise generated by artificial rainfall. Background technique [0002] Rainfall is one of the most important atmospheric phenomena. The rainfall over the ocean accounts for more than 80% of the total global rainfall. Sea rainfall has a very significant impact on global meteorology and marine environmental noise. Therefore, it is very important to grasp the law of ocean rainfall, and its foundation and key is the measurement of ocean rainfall, but it is very difficult to directly measure rainfall in the ocean. At present, there are two methods for measuring rainfall at sea: conventional rainfall measurement method and spaceborne rain radar satellite technology. Conventional equipment such as rain gauges and other single-point measurement equipment is difficult to conduct sufficient spatial sampling for rainfall pheno...

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Application Information

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IPC IPC(8): G01H17/00G01W1/14
CPCG01H17/00G01W1/14
Inventor 尚大晶李琪唐锐刘舒邓方舟王博
Owner HARBIN ENG UNIV
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