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A Low-Frequency Anechoic Pool Applicable to Limited Space

An anechoic pool, limited space technology, applied in the direction of sound-producing equipment, instruments, etc., can solve the problems of complex installation and high cost of the measurement platform, increase the operational height of the experiment, low cost, and meet the needs of experimental testing and production activities. Effect

Active Publication Date: 2021-06-22
GUANGDONG ZHICHENG CHAMPION GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, natural waters are greatly affected by natural factors such as climate and environment, and the installation of the measurement platform is complicated and costly

Method used

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  • A Low-Frequency Anechoic Pool Applicable to Limited Space
  • A Low-Frequency Anechoic Pool Applicable to Limited Space
  • A Low-Frequency Anechoic Pool Applicable to Limited Space

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Embodiment Construction

[0022] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0023] 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 directly connected or indirectly connected through an intermediary, and...

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Abstract

The invention discloses a low-frequency anechoic pool adapted to a limited space, comprising: a pool body; a sound-absorbing conical layer arranged on the side wall of the pool body; and a sound-absorbing wedge layer arranged on the bottom and top of the pool body ; The tip of the sound-absorbing cone layer and the sound-absorbing wedge layer faces the pool body; the thickness of the sound-absorbing wedge layer is smaller than the thickness of the sound-absorbing cone layer. The embodiment of the present invention provides an anechoic pool, by covering the bottom and top of the pool body with a thinner sound-absorbing wedge layer, and covering the four sides of the pool body with a thicker sound-absorbing conical layer. The side wall increases the experimental operating height and experimental operating space; at the same time, it can effectively absorb the sound waves propagating in the horizontal direction in the 1kHz-200kHz frequency band, meeting the needs of general experimental testing and production activities; in addition, due to the sound-absorbing wedge layer The cost of the sound-absorbing cone layer is lower than that of the sound-absorbing cone layer. Compared with laying the sound-absorbing cone layer on all six sides of the pool body, the cost of the sound-absorbing pool provided by the embodiment of the present invention is lower.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic engineering, in particular to a low-frequency muffler pool suitable for limited spaces. Background technique [0002] Usually underwater acoustic measurement belongs to free field measurement, which has very complicated requirements for free field. Natural open waters such as: lakes, rivers, large reservoirs, harbor bays and oceans can be used for free field measurements. However, natural waters are greatly affected by natural factors such as climate and environment, and the installation of the measurement platform is complicated and costly. Therefore, the construction of artificial anechoic pools is still an inevitable choice for the vast majority of research institutes and factories engaged in underwater acoustic research and the production of underwater acoustic equipment. [0003] The anechoic pool mainly provides an underwater sound field environment simulating a free field. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10K11/16G10K11/162G10K11/175
CPCG10K11/161G10K11/162G10K11/175
Inventor 罗安杜杲娴杨鑫王逸兴杨苓徐千鸣宁倩韩旭杨均权陈燕东李民英戴瑜兴陈宇
Owner GUANGDONG ZHICHENG CHAMPION GROUP