各单元电路设计时，从整个测量系统误差的角度分析设计低噪音前置放大器、程控放大器、线性精密检波器等单元电路。
For every circuit unit, mainly analyzing and designing the low-noise preamplifier, rule control amplifier and linearity precision detector unit circuit and so on.
测量系统采用了微波信号源、低噪声放大器和微波检波器等组成微波电路单元。
The microwave circuit unit is composed of microwave signal resource, low noise amplifier and microwave detector.
通过与大华无线电厂合作，研制了超高频传感器，其主要由天线、超高频放大器、高通滤波器、宽带检波器等组成。
A uhf sensor is designed and fabricated, which mostly consists of antenna, uhf amplifier, high pass filter, and broadband wave detector.
地震检波器由长长的电缆连结到放大器和接收装置上，而放大器和接收装置则被放置在一辆专门设计的卡车上。
The geophones are connected by long cables to the amplifiers and recording equipment which are often placed in a specially-designed truck. The vibrations received by the geophones are recorded.
一种可变增益AC放大器被连到检波器电路，用于将检波器输出放大。
A variable gain AC amplifier is coupled to the detector circuit for amplifying the detector output.
一种可变增益AC放大器被连到检波器电路，用于将检波器输出放大。
A variable gain AC amplifier is coupled to the detector circuit for amplifying the detector output.
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