Vibration and noise complex experiment equipment

A technology of noise test and composite test, applied in noise composite test equipment and vibration field, can solve problems such as single vibration or noise test

Active Publication Date: 2011-04-06
苏州苏试广博环境可靠性实验室有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Whether it is a shaking table, a reverberation chamber, or a traveling wave tube, it can only provide a single vibration or noise test. At present, there is no device that can provide a composite test of vibration and noise tests at the same time.

Method used

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  • Vibration and noise complex experiment equipment
  • Vibration and noise complex experiment equipment

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Experimental program
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Embodiment

[0018] See attached figure 1 As shown, a vibration and noise composite test equipment is mainly composed of three parts: noise test box 1, vibration table 2 and control box 3.

[0019] Wherein, the noise test chamber 1 is an airtight box with an acoustic cavity 4 inside, and at least one sound generating device 5 is arranged in the acoustic cavity 4; After being driven by the spectral sound signal, the required sound field is excited in the sound cavity 4 (multiple sets of sound generating devices 5 can be set according to the sound power required for the test).

[0020] The noise test box 1 is supported by a bracket 6 opposite to the ground, and an accommodating space 7 is formed under the noise test box 1 , and the vibrating table 2 is set in the accommodating space 7 .

[0021] Such as figure 1 As shown, an extension head 9 is fixedly arranged on the moving coil table top 8 of the vibrating table 2, and the upper end of the extension head 9 fixes the test piece 12 by a sp...

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Abstract

The invention discloses vibration and noise complex experiment equipment which is characterized by mainly comprising a noise experiment box, a vibration table and a control box, wherein the noise experiment box is an airtight box body and is internally provided with a sound cavity which is internally provided with at least one set of sound production device; the noise experiment box is provided with a bracket support over the ground, an accommodation space is formed below the noise experiment box, and the vibration table is arranged in the accommodation space; the table board of the vibration table is fixedly provided with an extending head, the bottom surface of the noise experiment box is provided with an interface corresponding to the extending head, the extending head extends into the sound cavity through the interface, and a sealing device is arranged between the circumferential direction of the extending head and the interface for connection; and the control box is internally provided with a control circuit used for controlling the noise experiment box and the vibration table. The invention not only can simultaneously provide complex experiments of the vibration experiment and the noise experiment, but also can provided single vibration experiment or single noise experiment, which fills in a blank in the field in China.

Description

technical field [0001] The invention relates to a compound mechanical environment test device, in particular to a vibration and noise compound test device. It is mainly used to provide a combined vibration and noise test environment for various electronic, mechanical and other products and equipment that contain vibration and noise factors in the working environment, and to test the design, development, processing, and delivery of the product to be tested at various stages. Background technique [0002] In the actual use of various civilian and military products, the products must face certain environmental conditions, usually including temperature, vibration, humidity, noise and other factors. All kinds of environmental factors will produce corresponding environmental stress on the product, which is unfavorable for the actual use of the product. Typical effects caused by vibration include: structural cracks or fractures, component failure, poor electrical contact or short ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02G01M99/00G01H17/00
Inventor 濮龙锋陈晨
Owner 苏州苏试广博环境可靠性实验室有限公司
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