It is also demonstrated that the AGC systems with exponential gain control characteristic may strictly be transformed into a linear system by using any logarithmic amplifier.

在比较器和受控放大器之间接上一个对数放大器，就可以使增益控制特性为指数函数的AGC系统严格线性化。

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Based on the characteristic of the Wide-beam ultrasonic flowmeter, automatic gain control amplifier and the tracking band-pass filter are devised.

并根据宽波束超声波流量计的特点重点进行了自动增益控制放大器和跟踪带通滤波器的设计。

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Meanwhile the absorption and fluorescence spectrums and gain characteristic of the double-cladding plastic optical fiber amplifier (DC POFA) that we had made were tested.

实验测试了所制作出的双包层塑料光纤放大器(DC POFA)的吸收谱、荧光谱和增益特性。

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