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      本实验室依据GB/T25516-2010(ISO 7235:2003,IDT)建设,用于测量通风类消声器、弯头、T型连接管和风道末端等设备的插入损失、全压损失和气流噪声。



          The laboratory was built according to GB/T25516-2010(ISO 7235:2003,IDT), aiming at measuring the insertion loss, total pressure loss and airflow noise of ventilation muffler, elbow, T-connection tube and equipments at the terminal end of air duct.

          The muffler dynamic evaluation laboratory is composed of the underground fan, the aboveground test pipe and the sound reception room. The muffler is provided before and after the underground fan to reduce its noise while running.