本文研究一种金属穿孔薄膜结构的声学特性。在一些卫生要求较高的场合,以及某些不宜采用纤维性材料和传统吸声材料的地方,采用这种完全金属制作的吸声结构有着特殊的功用。在国外已有不少实例证实这种穿孔薄膜吸声体的良好应用前景。 采用类比电路的分析方法以及声阻抗、吸声系 This article studies the acoustic properties of a metal-perforation film structure. In some hygienic requirements of high occasions, and some unfit for the use of fibrous materials and traditional sound-absorbing materials, the use of such a complete metal sound-absorbing structure has a special function. There are many examples in foreign countries to confirm the good application of this perforated film absorber. Using analog circuit analysis methods and acoustic impedance, sound absorption system