采集系统中光电信号调理电路的噪声分析  

Noise Analysis of Optic-Electrical Signal Conditioning Circuit in Acquisition System

作　　者：肖庆亮[1] 杨德伟[1] 张朝阳[1] 冯秀娟[1] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191

出　　处：《数据采集与处理》2009年第B10期206-209,共4页Journal of Data Acquisition and Processing

摘　　要：在用数据采集卡对传感器输出信号进行采集的过程中,往往需要先对传感器输出的信号进行放大、滤波、A/D转换等一系列信号调理过程。信号调理电路的噪声直接影响整个检测电路的检测水平,为此,根据光纤电压互感器中光电信号检测的实例,说明了信号调理电路的噪声分析与抑制措施,为以后信号检测精度的提高提供了依据。In the process of trancducer data acquisition using acquisition card, it often needs a series of signal conditioning, such as amplification, filtering and A/D conversion. The noise of the signal conditioning circuit will affect the testing level in the whole circult. Therefore, taking an example of optic-electrical signal detection in optical voltage transducer （OVT） signal conditioning circuit is analyzed and the noise suppression measures are presented. It provides a basis for the future improvement of the accuracy of the signal detection.

关 键 词：数据采集 调理电路 噪声 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]