Standard, capacitor or push-pull microphone. 标准、电容器式或推拉式扩音器。
Effective calibration method for sound pressure sensitivity of capacitor microphone 测试电容传声器声压灵敏度校准方法的研究
Design of heart sound processing analog circuit based on the electret capacitor microphone 基于驻极体电容传声器的心音模拟处理电路的设计
It also gives a safety design problem analysis using an electret capacitor microphone to pick-up the heart sound signals. 该电路涉及到放大、滤波、电平抬升等电路,并给出了安全设计问题,利用驻极体电容传声器来拾取心音信号。