| 摘要 |
PURPOSE: A blade noise measuring system provides accurate data by measuring properties with respect to noise under various conditions of a blade. CONSTITUTION: A blade noise measuring system(100) comprises a blade rotating unit(110), a noise measuring member(120), a photographing member(130), a control panel, and a power source panel. The blade rotating unit rotates the blade, thereby generating noise. The noise measuring member measures the noise generates while rotating the blade. The photographing member photographs an operation state of the blade rotating unit. The control panel controls a rotating speed of the blade rotating unit, a rotating time, and a pitch angle of the blade. The power source panel supplies power to the blade rotating unit. The blade rotating unit, the noise measuring member, and a photographing member are installed inside of a dead room(140). |
