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本文主要研究了测试电容传声器中的前置放大器的低频特性,进行了理论计算,找到了影响其低频特性的一些参量,并介绍了测量前置放大器频率特性的方法。本文对类似的放大器频响分析也有一定参考意义。
In this paper, the low frequency characteristics of the preamplifier in the test condenser microphone are mainly studied. The theoretical calculation is carried out and some parameters that affect the low frequency characteristic are found out. The method of measuring the frequency characteristic of the preamplifier is introduced. This article on a similar amplifier frequency response analysis also has some reference.