| 摘要 |
The invention concerns a method for making a material absorbing surface mechanical wave generated by local waves capable of producing interference phenomena relative to the pressure wave with propagation direction orthogonal to said surface. The method consists in forming a support (S) delimiting the surface from a continuous structure, said support having a specific rigidity in a direction substantially orthogonal to said support (S). An sound-absorbing coat (R) is then formed on at least one surface of the support (S), said coat comprising a plurality of obstacles to the propagation of the surface mechanical wave and the local waves, which are thus absorbed. The invention is useful for making diaphragms for electro-acoustic transducers and high quality electro-acoustic transducers. |
