【摘要】 消声室是声学测量的基本配套设施。本文作者在宁波大学内建消声室实践基础上,对消声室的类型、规格和技术经济指标的确定;消声室的隔振、隔声处理;消声室的吸声处理等方面的问题进行了探讨。消声室的性能检测的一个重要内容是自由声场的鉴定,本文提出一种离散法鉴定自由声场,具有简单易行的优点。更多还原

【Abstract】 On the practice basis of building anechoic chamber in Ningbo University, the determinations of the type, the volume, the technological and economic specifications of anechoic chamber are investigated, and the problems of the vibration isolation, the sound insulation and the absorptive treatment of anechoic chamber are also studied. Free field identification is the impotrant content of anechoic chamber property test. A new identification method which is simple and available is put forward.更多还原