【摘要】 在微弱信号测量中放大器是关键器件。本文介绍如何选择放大器,使噪声系数最小,以达到良好的性能。给出微弱信号放大器性能表和如何减少外来的干扰等误差源。更多还原

【Abstract】 This paper introduces how to select amplifier and minimize the noise figure to reach the better system performance. Lists of low level amplifier and ways of elimination extra error source are given.更多还原