散布式磁致伸缩平板扬声器研制*

作者：王玉生1，王玉娜2 日期：2008-04-23/span> 浏览：4016 查看PDF文档

散布式磁致伸缩平板扬声器研制*
王玉生1，王玉娜2
（1.杭州电子科技大学 机械工程学院,浙江 杭州 310018；
2.杭州电子科技大学 通信工程学院，浙江 杭州 310018）

摘 要：为了改善现有单个超磁致伸缩驱动器平板扬声器输出功率及音色方面的不足,提出了基于超磁致伸缩驱动器（GMA）的散布式多点配置平板扬声器设计。研究了用于新型散布式多点配置平板扬声器的音频驱动器的设计，分析了超磁致伸缩平板扬声器多点配置原理，并讨论了音板材料的选择，最后利用专业测试软件对研制的散布式多点配置磁致伸缩扬声器进行了性能测试。结果显示，与单点驱动扬声器相比较，该扬声器音显而易见提高，音质得到了进一步的改善。
关键词：散布多点配置；超磁致伸缩材料；平板扬声器

Research on a distributed mode magnetostrictive flat panel loudspeaker
WANG Yusheng1, WANG Yuna2
(1.College of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;
2.College of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China)

Abstract:To enhance the sound output and to ameliorate the timbre of present single exciter giant magnetostrictive actuator (GMA) flat panel loudspeaker, a new design of distributed mode flat panel loudspeaker with multiexciter allocation was put forward. The design of the audio actuator for flat panel loudspeaker of newly distributed mode multipoint allocation was studied, the principle of multipoint configuration of GMA flat panel loudspeaker was analyzed, and the choice of panel material was also discussed, finally a test for the performance of distributed mode multipoint configuration GMM flat panel loudspeaker was made, using professional software. The results thow that the volume of this loudspeaker is increased, and the acoustics is improved, compared with single exciter flat panel loudspeaker.
Key words: distributed mode multipoint allocation; giant magnetostrictive material (GMM); flat panel loudspeaker