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    混响实验室依据GB/T 20247-2006(ISO 354:2003)建设,主要测试、研究材料或结构的吸声性能,也可用于测量小型声源的声功率和小型隔声罩的插入损失。


     The reverberation laboratory was built according to GB/T 20247-2006(ISO 354:2003), aiming at testing and studying the sound absorption property of material and structure, as well as the acoustical power of small-size sound source and the insertion loss of small-size acoustic hood. 
     The reverberation laboratory is of the house-in-house structure; in addition to the damping springs and the foundation columns used at the bottom, all other sides of internal test room and external room are completely isolated from the outside. Under such circumstance as no sound source in the laboratory, the background noise may lower to 19dB (A). The house-in-house structure is characterized by no impact from the outside noise and vibration and the test deviation avoided and accuracy greatly improved.