| 摘要 |
The present invention relates to a method for measuring abnormal sound such as vibration and noise from a vehicle power seat assembly and an abnormal sound measuring device for the same. The abnormal sound measuring device comprises: first, second, third, fourth vibration sensors (2, 3, 4, 5) detecting vibration and noise by being attached to multiple vehicle power seat assemblies (1); signal input units (11, 12, 13, 14) respectively inputting a signal of the first, second, third, and fourth vibration sensors (2, 3, 4, 5); A/D converters (15, 16, 17, 18) converting an analog signal individually inputted by the first, second, third, and fourth vibration sensors (2, 3, 4, 5) into a digital signal; a data acquisition (DAQ) card and a control unit (19) collecting multi-channel data inputted by the A/D converters (15, 16, 17, 18); a computer (20) for processing data and measuring a signal inputted by the first, second, third, and fourth vibration sensors (2, 3, 4, 5); a monitor (25) outputting a measurement state or an input sate on a screen and including a touch screen to perform input, change, and selection of data or set various measurement modes; and a sound outputting unit (26) enabling a worker to listen abnormal sound by each channel. As the abnormal sound such as vibration and noise generated when the vehicle power seat assembly (1) operates is detected, the abnormal sound is processed at high speed and is output on the screen in a normal graph shape. A general worker can rapidly, accurately, and objectively determine a pass and a fail of the vehicle power seat assembly. |
