ARA地震仪放大器是一种集成化的可以自动换档的地震仪放大器。
The seismic amplifier of ARA type is a integrated amplifier which can be shifted automatically.
ARA的性能比分立元件组成的各类现用地震仪放大器性能有较大的提高。
Its performance score shows that the character of every kind of seismic amplifier which composed by the parts of ara has increased greatly.
鉴于测震中电子放大地震仪放大器的输出动态范围窄的缺陷，笔者作了自动换档衰减放大倍数的电路技术设计。
For overcoming the shortcoming of narrow output dynamic range of the electronic-amplifying seismograph, the Authors have designed a kind of circuit for automatic gain control.
瞬时浮点放大器是数字地震仪中的关键部件。
Instantaneous floating point amplifier is a key unit in digital seismic system.
本文对DFS-V 型数字地震仪的瞬时浮点放大器各主要部分的结构、作用、工作原理及子样的增益调整过程进行了比较详细的介绍和分析；
The detailed description is given of circuits, functions and mechanisms of major constituents of the instantaneous floating point amplifer in DFS-V seismic system;
本文对DFS-V 型数字地震仪的瞬时浮点放大器各主要部分的结构、作用、工作原理及子样的增益调整过程进行了比较详细的介绍和分析；
The detailed description is given of circuits, functions and mechanisms of major constituents of the instantaneous floating point amplifer in DFS-V seismic system;
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