目前国产高频宽带扫频仪的对数放大器性能还有待提高。
The properties of domestic high-frequency broadband sweeper, for instance, the dynamic range, logarithmic accuracy, flatness and log linear, still need to be improved.
介绍了大动态连续检波式对数放大器(SDLA)的设计方法、工作原理和结构。
A successive detection logarithmic amplifier (SDLA) is described, with regard to its operational principle and structure.
在液闪计数装置中采用这种对数放大器实现了对一些放射性核素活度的绝对测量。
Using this amplifier in a liquid scintillation counting device, absolute measurements of the activity of some radionuclides have been realized.
详细叙述了对数放大器的性能、特性，介绍了几种主要的对数放大器类型及其工作原理。
Major types of the log amplifier and their theory of operation are discussed. The development of log amplifiers abroad is examined.
该视频对数放大器是在自制单片ic基础上混合集成，单片IC采用PN结隔离双极工艺制作。
This video log amplifier is based on a monolithic IC, which is fabricated using PN junction isolation bipolar process by SISC, and all peripheral devices are integrated using hybrid IC process.
结合对数放大器自身的特性，介绍了此电路在BPM系统中的组成，工作原理，试验结果和参数的测量方法。
According to log amplifier's characters, we introduce the structure, principal, experiment results and measurement of the parameters of the circuit in BPM.
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。
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.
介绍了对数放大器的基本概念以及利用AD 8313对数放大器集成芯片研制的实用宽带、大动态范围、高精度对数放大器模块。
This paper introduces a basic conception of logarithm amplifier and a useful logarithmic amplifier using the chip of AD8313 that has a wide bandwidth, high dynamic range and high accuracy.
介绍了对数放大器的基本概念以及利用AD 8313对数放大器集成芯片研制的实用宽带、大动态范围、高精度对数放大器模块。
This paper introduces a basic conception of logarithm amplifier and a useful logarithmic amplifier using the chip of AD8313 that has a wide bandwidth, high dynamic range and high accuracy.
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