文章摘要
周福洪,王文芝.宽带铁磁流体电动式声源[J].,1996,15(6):1-6
宽带铁磁流体电动式声源
Wide-Band ferromagnetic fluid electrodynamic acoustic source
  
中文摘要:
      本文阐明了铁磁流体电动式声源的换能机理.我们详细地研究了它的磁路结构,及在振动活塞上安置一个大的橡皮充气球泡,它能提高低频的辐射效率.这声源具有4个倍频程的低频宽带发射响应
英文摘要:
      This paper explains the transducing mechanism of the ferromagnetic fluid electrodyanmic troe acoustic source. We study it’s magnetic circuit structure in detail, and alarge air filled spherical rubber chamber is fixed on the vibrating piston. It may increasethe low frequency effciency of radiation. This acoustic source can get four octaves of wide band transmitting response in low frequency rang.
DOI:10.11684/j.issn.1000-310X.1996.06.001
中文关键词: 电动式换能器  铁磁流体  钕铁硼永磁体
英文关键词: Electrodynamic transducer  Ferrofluid  Nd-Fe-B Permanent magnet
基金项目:
作者单位
周福洪 哈尔滨工程大学!哈尔滨
150001 
王文芝 哈尔滨工程大学!哈尔滨
150001 
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