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文中介绍一种用于CCD信号的自动零点、自动增益调整电路,它主要由乘法/除法器AD734、最大值电路、最小值电路组成,文中说明了该电路的工作原理,给出了误差分析和实验结果,CCD信号经此电路规整后输出可以较大程度提高系统的测量精度。
This paper introduces a kind of automatic zero and automatic gain adjustment circuit for CCD signal. It mainly consists of multiplier / divider AD734, the maximum value circuit and the minimum value circuit. The working principle of the circuit is described in this paper. The error analysis and Experimental results, CCD signal output by the circuit after the regulation can greatly improve the system’s measurement accuracy.