Sound pressure obtaining device for testing noise sources

Abstract

The invention discloses a sound pressure obtaining device for testing noise sources. The sound pressure obtaining device for testing the noise sources comprises a sound pressure collection module used for obtaining sound pressure of each collection point in a noise measurement plane and a microphone movement module connected with the sound pressure collection module and used for controlling the sound pressure collection module to move to the collection points in different positions so that the sound pressure of each collection point can be obtained, engineering mechanical noise can be accurately detected, and the noise sources with different operating parameters can be accurately determined. Thus, under the condition that the performance of a whole machine is not influenced and according to the noise sources, the whole machine can be optimized through adjustment of the parameters, and noise is lowered.

Description

technical field [0001] The invention relates to the field of noise source testing, in particular to a sound pressure acquisition device for noise source testing. technical field [0002] The present invention relates to noise source testing, in particular to a noise source testing device, system and method. Background technique [0003] In recent years, people have paid more and more attention to health and environmental problems caused by noise. Therefore, noise level has become one of the important evaluation indicators of construction machinery. High noise processing can not only cause harm to human health and the environment, but also directly affect the quality and efficiency of the product itself, and increase energy consumption, thereby shortening the service life of the product. Therefore, the noise of construction machinery must be controlled within a reasonable range. To control noise, we first need to analyze the source and size of the noise. [0004] At pres...

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Problems solved by technology

[0004] At present, when testing noise sources, the construction machinery is generally placed on an open field, and the construction machinery is set at the maximum speed and no-load state, and the spatial coordinates are roughly estimated or measured with a tape measure through a hand-held sound intensity probe, and then the pre-set Test at a given measurement point, and generally only measure the sound pressure value, and the amount of data recorded is large, so it is easy to make mistakes

Therefore, the test results of construction machinery noise sources by the above method cannot accurately reflect the actual noise situation

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