在普及以数字源为代表的小型磁盘的同时,要求播放声音的扬声器有更好的音质,为满足此要求,其办法之一,是优于以往的各种振动膜材料的开发和产品化。扬声器用振动膜的最好材料,金属系有铍,陶瓷系有氧化铝、碳化硼、碳化硅,碳系有陶瓷石墨,树脂系有液晶聚合物、合成石墨等。 In order to popularize the mini disk represented by the digital source, the loudspeaker that requires the sound to be played has better sound quality. One way to meet this requirement is to surpass the development and production of various vibrating membrane materials in the past. The material of the speaker diaphragm is made of beryllium, ceramics of alumina, boron carbide, silicon carbide, carbon-based ceramic graphite, resin-based liquid crystal polymer, synthetic graphite, and the like.