驻极体电容传声器温度特性分析和改进对策  

Analysis of Temperature and Improvement of its Response on ECM

作　　者：吴宗汉[1,2] 

机构地区：[1]东南大学物理系,江苏南京210018 [2]深圳豪恩声学股份有限公司,广东深圳518109

出　　处：《电声技术》2010年第5期22-26,共5页Audio Engineering

摘　　要：着重讨论了驻极体电容传声器的温度特性,分析了影响驻极体电容传声器温度特性的主要因素:振膜、J-FET等对驻极体电容传声器性能的影响,弄清温度特性对这些特性的作用,这对改进工艺,获得稳定的、高性能的传声器有参考意义。另外,还对改善ECM温度特性的对策作了说明。The temperature features of ECM（Electret Condenser Microphone） are introduced, and the main factors making the impact on ECM temperature characteristics are analyzed. The other factors affecting the ECM quality including the diaphragm, J-FET. The production processing gives an assurance to obtain stable, high-performance microphone. Also countermeasures how to improve the temperature characteristics of ECM are described in the article.

关 键 词：驻极体电容传声器 温度特性 振膜 

分 类 号：TN643[电子电信—电路与系统]