| 摘要 |
PURPOSE: A discharge noise measuring device for exhaust gas of a vehicle is provided to be directly mounted on a vehicle for the convenience of the measuring work and improve the sensor protection and the sensor stability, thereby obtaining reliable measurement data. CONSTITUTION: An exhaust gas discharge noise measuring device for a vehicle includes an attachment unit(10) having at least two pressure plates to be attached to a vehicle body, a holding element for holding the pressure plates, and a supporting element coupled to a supporting die for fixing, moving vertically or rotating right and left the whole pressure plates and the holding element, a control unit(20) having two upper and lower combination type refraction angle controllers mounted at upper and lower parts in a separation section of the supporting die for controlling an angle of the supporting die, and an auxiliary supporting element supported by a supporting element coupled on the supporting die and having two auxiliary pressure plates, the auxiliary supporting element being controllable in length, and a measuring unit(30) having a sensor mounting part to be mounted with a plurality of microphones and controllable in length, and a supporting element for fixing the sensor mounting part on the supporting die.
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