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电容式自极化静电耳机(CSEH)设计原理
Design principle of capacitive self-polarized electrostatic headset(CSEH)
【摘要】 本设计根据静电耳机换能理论,利用驻极体材料可以产生高压恒定静电电场的原理,采用将驻极体材料的振膜悬挂在由两块固定电极板之间而形成高压恒定静电场,当音频信号加载到上述恒定电场时,会调制静电电场力随之发生变化,驱动振膜振动。由于微米级的振膜带来的是更快的速度、更佳的瞬态反应、更强的细节表现力,从而给听音者带来更好的音乐享受。
【Abstract】 In this design,according to the theory of electrostatic earphone transducer,the electret material can produce a high voltage constant electrostatic electric field by using electret material,and the electret materialundefineds diaphragm is suspended between two fixed electrode plates to form a high voltage constant electrostatic field. When the audio signal is loaded into the above constant electric field,the electrostatic field force will change,driving the vibration of the diaphragm.Because the Micron level diaphragm brings faster speed,better transient response,and greater detail expression,it brings better music enjoyment to the listener.
【Key words】 static electricity; electric field; electret; diaphragm; polar plate;
- 【文献出处】 电声技术 ,Audio Engineering , 编辑部邮箱 ,2018年10期
- 【分类号】TN642
- 【下载频次】127