摘要
研究了适用于平板显示器的平板音响,将平板显示器的屏作为扬声器的振膜,在此基础上阐述了底边固定的平板的振动特性。对不同大小不同形状的板的自振频率及激振情况进行计算,通过对计算结果的分析研究,提出了应该使平板底边与侧边的比值尽可能大、平板面积也尽可能大,以便减小共振时产生的噪音;同时限制激励幅值在一定范围内以减小平板产生的最大位移值。
A flat panel loudspeaker suitable for flat panel display is studied, considering the flat display as vibrant membrane. Vibrant characteristic of flat panel whose hemline is fixed is expounded. Sympathetic vibration frequency and excited vibration frequency of flat panel in different size and shape are simulated. A method to decrease noise brought by resonance is proposed by means of augmenting the ratio of hemline and side or increasing the area of flat panel. And we restrict power in a certain range to reduce the possibility of big swing produced.
出处
《电子器件》
EI
CAS
2006年第3期798-801,共4页
Chinese Journal of Electron Devices
关键词
平板音响
自振模态
谐响应
激励
flat panel loudspeaker
static mode
harmonic response
power
