有源降噪耳罩  

Active Noise-reduction Earmuff

作　　者：沈 韩秀苓[2] 

机构地区：[1]中科院声学所 [2]北京理工大学二系

出　　处：《电声技术》1993年第7期2-6,共5页Audio Engineering

摘　　要：在密闭型耳罩中,利用有源降噪技术可以较好地衰减低频噪声以使整个可听声频率范围内获得良好的衰减特性。文中讨论了反馈型有源消声耳罩的工作原理和稳定性,给出了一些设计考虑和测量结果。L. F. noise can be better attenuated so as to obtain good attenuation characteristics over the entire audible frequency range by using active noise reduction technique in the closed-air type earmuff. The working principle and stability of active noise reduction earmuff of feedback type are discussed and some design considerations and measurement results are given in the paper.

关 键 词：耳罩 噪声防护 噪声降低系统 

分 类 号：TB53[理学—物理]