没有前置放大器，软静音，有时面具极其微弱的信号。
Without a preamp, the soft mute can sometimes mask extremely weak signals.
硬盘驱动器控制信号发送到前置放大器和前置选择头部硬盘在目前的时刻需要。
HDD sends control signals to the preamp and the preamp selects the head which HDD needs at the current moment.
前置放大器与均衡器或滤波器跟在雪崩二极管检测器的后面以获得增益，线性信号处理及噪声宽带的抑制。
The avalanche photodiode detector is followed by a front-end amplifier and equalizer or filter to provide gain as well as linear signal processing and noise bandwidth redution.
检测器内部的前置放大器将微弱的电场信号放大后，送报警器进行比较处理。
Detector internal preamplifier after weak electric signal amplification, comparing to send alarm processing.
同时指出了这种连续波弱信号CO2激光放大研究用于CO2相干激光雷达前置放大器的可能性。
Some effects are achieved. In the meantime, the possibility of using the study result for the preamplifier of CO2 coherent laser radar is also analyzed.
前置放大器电子线路或装置，用来探测并加强无线电接收机所发出的微弱信号，从而使其达到更加有力的增幅程度。
An electronic circuit or device that detects and strengthens weak signals, as from a radio receiver, for subsequent, more powerful amplification stages.
在核探测器和前置放大器获取核信息及波形数字化系统将模拟核信号数字化的过程中，都不可避免地会使核信号发生畸变，影响测量结果的精度。
During the detector and preamplifier acquire nuclear information and WDS convert the analog signals to digit value, the nuclear signals will inevitable be distorted to make the final result worse.
脑电信号通过前置放大器放大后，由C8051F 020内部的12位ADC进行采样。
The 12-bit ADC in C8051F020 samples the EEG signal amplified by the preamplifier.
在信号处理中选用具有低噪声、高精度、低功耗放大器ad620作为前置放大器，并以高、低通滤波器和工频陷波器清除干扰信号。
During signal processing, choosing low noise, high-precision, low-power amplifier AD620 as a pre-amplifier, and high-and low-pass filter and the frequency notch filter removal of interfering signals.
提出一种用于提取神经电信号的新型单片集成CMOS前置放大器。
A monolithic integrated CMOS preamplifier is presented for neural recording applications.
此外，为消除各种干扰信号，前置放大器采用差动放大方式来检测次级端上的信号变化。
Additionally, the head amplifier adopts a differential amplification mode to test the change of the signals on the secondary end for eliminating various interfering signals.
此外，为消除各种干扰信号，前置放大器采用差动放大方式来检测次级端上的信号变化。
Additionally, the head amplifier adopts a differential amplification mode to test the change of the signals on the secondary end for eliminating various interfering signals.
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