Ultra low noise fiber optical microphone designed for monitoring very weak sound signals in selected frequency bandwidths. 超低噪音光纤麦克风设计用于监测在选定的频率带宽内非常微弱的信号。
A Novel Ultra Low Noise(ULN) CMOS Voltage Reference Circuit with Digital Calibration Scheme 一种新型带数字校准的超低噪声(ULN)CMOS参考电压源
The key to the design of feeble signal sampling system lies in the designing of ultra low noise preamplifier. 设计超低噪声(ULN)前置放大器是设计微弱信号采集仪器时不可回避的技术问题。
Three key problems in design of ultra low noise preamplifier are discussed, such as the relation of the source impedance to noise figure, the influence of feedback on noise and the application of active mask. 文章研究了超低噪声(ULN)前置放大器设计中的三个关键问题,即信号源内阻与噪声系数的关系,反馈对噪声系数的影响及有源屏蔽技术的应用;
Study on Ultra Low Noise(ULN) Amplifier Module in S Band S波段超低噪声(ULN)放大模块研制