Vehicle chassis noise problem source positioning system and positioning method
A source positioning and chassis technology, applied in radio wave measurement systems, re-radiation, measurement devices, etc., can solve the problems of high price and complex structure, and achieve the effects of low cost, simple structure and strong practicability
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[0025] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0026] The present invention aims to solve the problem that the source of the vehicle chassis noise is difficult to locate precisely. One is the determination of several noise problem sources with the largest noise in the vehicle chassis, and the other is the determination of the noise problem source on the vehicle chassis that has the greatest impact on the side of the vehicle. . The main idea is to measure the sound intensity on multiple lines respectively for the length and width of the vehicle. The measurement principle is to measure the sound intensity on one line by the movement of the microphone as a point relative to the vehicle chassis. The grid of sound intensity is formed by the superposition of the intensity line and the sound intensity line in the width direction, that is, the grid arrangement of the sound intensity, which is realized throug...
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