驻极体传声器;
The Breath Sounds Transducer with Electret-Condense Microphone
驻极体电容式呼吸音传感器
The electret microphone tester is used to test electret microphone's sensitivity and frequency response.
驻极体传声器测试仪是用来测试传声器的灵敏度及频率响应的.
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
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