1、

The measurement of relative gain of preamplifier with PD signal produced by light source

用光源信号测试BES3量能器用前放的相对增益

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2、

A Design of the TV Camera Preamplifier With High Signal to Noise RatioS/ N

高信噪比的电视摄象预放器的设计

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3、

Piezoelectricity crystal is used to detect the acoustic pulse signal caused by partial discharge within power capacitor and after being amplified by high gain, wide bandwidth preamplifier, these signals are sent to main body of instrument through coaxial cable.

该装置采用压电晶体检测电力电容器内局部放电所产生的声脉冲信号,经高增益、宽频带的前置放大器放大后,由高频同轴电缆传送至仪器本体。

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4、

an electrical signal is generated by a preamplifier or impedance converter.

一个电子信号由前置放大器或阻抗变换器。

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5、

The signal processing system is divided into the preamplifier circuit, signal integration circuit, the threshold judgment and timing circuit system.

探测器将光信号转化为电信号,信号处理系统分为前置放大电路,信号融合电路,以及阈值判断与计时电路。

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