电路采用电容负反馈互导放大器(CTIA)及相关双取样(CDS)结构，有利于减小电路的噪声。
The adoption of capacitor feedback transimpedance amplifier (CTIA) and correlated double sampling (CDS) structure helps to reduce the noise of the circuit.
锁定放大器和取样积分器都不能抑制与参考信号同频率的干扰。本文提出了一种能抑制这种干扰的方法。
This paper describes a method of suppressing correlation jamming at the frequency of reference signal which cannot be suppressed by lock-in amplifier and Boxcar integrator.
该电路的模拟部分包括电荷放大器、后级放大电器、相关双取样与采样保持电路、积分器、单位增益缓冲器。
The analog part includes self-test circuit, charge amplifier, post-amplifier circuit, CDS and S/H circuit, integrator, unity gain buffer.
该系统中的硬件包括D／A和A／D转换接口、程控增益放大器、多路取样阀门控制接口等；软件包括在线流程分析和常规分析软件。
Hardware interface includes A/D, D/A converters, programmable gain controller and multiplex sampling valve controller. software includes on-line process analysis and normal analysis unit.
该系统中的硬件包括D／A和A／D转换接口、程控增益放大器、多路取样阀门控制接口等；软件包括在线流程分析和常规分析软件。
Hardware interface includes A/D, D/A converters, programmable gain controller and multiplex sampling valve controller. software includes on-line process analysis and normal analysis unit.
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