A novel reflective fiber optic microphone was introduced. It USES a reflective fiber optic sensing probe to realize the outside modulation of sound to light.
一种新型的反射式光纤麦克风，它利用反射式光纤传感探头实现声音对光的外调制。
Furthermore, the GJ-4 confocal probe uses an avalanche diode with high responsivity. Therefore, it can get better measuring signals from low-reflective surfaces.
GJ-4型测头的光电接收器件使用高响应度的雪崩光电二极管，能够对一些弱反射表面获取到较好的测量信号；
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