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Sound insulation box, test system having same and test method

A testing system and soundproof box technology, applied to vibration measurement in solids, measuring vibrations, measuring devices, etc., can solve the problem that the soundproof box cannot adapt to the volume, etc., to solve the phenomenon of corrosion and infiltration, widely used, and improve sound insulation. effect of effect

Pending Publication Date: 2019-03-01
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

As mentioned above, the size of the existing sound-proof box cannot adapt to the large-sized object to be inspected, but the continuous update of inspection equipment makes the problem of how to remove environmental noise more and more important

Method used

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  • Sound insulation box, test system having same and test method
  • Sound insulation box, test system having same and test method
  • Sound insulation box, test system having same and test method

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Embodiment approach

[0114] According to a preferred embodiment of the present invention, the clamping mechanism 42 includes a clamping rod 421, a clamping head 422 and a protective head 423,

[0115] Preferably, the top end of the clamping rod 421 is connected with a rotating handle, and the end of the clamping rod 421 penetrates inward from the outside of a telescopic arm.

[0116] In a further preferred embodiment, a clamping head 422 is connected to the end of the clamping rod 421 .

[0117] In a further preferred embodiment, the clamping head 422 is in the shape of a sheet.

[0118] Preferably, damping material is installed on the clamping head 422 .

[0119] Among them, the damping material is installed on the clamping head to reduce the vibration generated when the clamping mechanism is in contact with the tested part, thereby further reducing the influence of the external environment on the acoustic signal acquisition.

[0120] The test system provided by the present invention can fix th...

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Abstract

The invention discloses a sound insulation box, a test system having the same and a test method. The sound insulation box has multiple structures. An inner box body comprises two sound insulation material layers so as to improve the signal-to-noise ratio of a monitoring signal. The sound insulation box of the invention mainly protects a detected part against environmental noise, rather than move the entire detected piece into the sound insulation box, and is suitable for different sized detected parts. Further, the test system having the sound insulation box fixes a signal collector by a compacting physical fixing mode, and can avoid secondary damage to the detected part. The sound insulation box is simple in structure, convenient to operate, good in universality and repeatability.

Description

technical field [0001] The invention relates to the technical field of acoustic signal non-destructive testing, in particular to a soundproof box, a testing system and a testing method using the soundproof box. Background technique [0002] With the continuous update of acoustic signal non-destructive testing equipment and the increasing sensitivity of sensors, weaker acoustic signals can be detected. Therefore, the problem about the interference of environmental noise on the effective signal has become more and more prominent, especially the influence of cavity noise on the effective signal, which has become one of the factors that cannot be ignored in the detection process. [0003] The process of nondestructive testing of acoustic signals needs to be carried out in an environment that is not affected by external noise conditions. The ideal solution is to build a soundproof room that can completely isolate environmental noise. However, there are many problems in the estab...

Claims

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Application Information

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IPC IPC(8): G01H1/14
CPCG01H1/14
Inventor 赵东赵亓赵健刘嘉明温宇鑫张建中李胜利
Owner BEIJING FORESTRY UNIVERSITY
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