前置放大器

The detection circuit uses alternating current capacitance bridge method and the principle is based on the correlated demodulation .

之后，前置级的输出信号经过低噪声放大器进行放大，再通过带通滤波以及相关解调等电路实现检测系统需要的输出幅值和信噪比。

Advanced Integrated Circuits are used in signal process. The prepositive signal processor is placed close to the model rotor. The instrument amplifier, the voltage and current converter/transmitter, the isolation amplifier, the isolation power unit, the current and voltage converter etc.

将先进的集成元器件应用于测试电路的研制中，在国内首次将前置信号处理器放置于模型旋翼附近，并采用仪用放大器，电压/电流转换，隔离放大器，隔离电源，电流/电压转换等措施以实现信号远距离传输下的高信噪比信号测量。

This design uses an AD620 which features low power consumption and high precision as the preamplifier.

在设计中采用低功耗、高精度的仪用放大器，即AD620作为放大器的前置级。

It is a switch capacitor circuit which consists of the preamplifier and dynamic latch.

比较器是前置放大器与动态锁存器组成的开关电容电路。

The same basic circuit configuration shown in Figure 1-8 can be used as an input preamplifier for a nanovoltmeter.

与图1-8所示相同的基本电路结构也可以用作纳伏表的输入前置放大器。

Afterwards the Modular preamplifier presentation good is I present also a simpler circuit in the manufacture but very good quality.

随后介绍了模块化前置放大器好是我现在也是一个制造简单电路，但质量非常好。

The same components have been installed on the receiving diode and preamplifier.

同一组件内已装上了接收二级管和前置放大器。

These detectors are low impedance devices, typically 10 to 150 ohms, and require a low voltage noise preamplifier.

这些探测器是低阻抗器件，通常是10至150欧姆，而且还需要一个低电压噪声前置放大器。

The key to the design of feeble signal sampling system lies in the designing of ultra low noise preamplifier .

设计超低噪声前置放大器是设计微弱信号采集仪器时不可回避的技术问题。

The transimpedance preamplifier in optical fiber communication is designed by applying the 0.6μm CMOS technology.

利用0.6 μm CMOS工艺设计了一种用于光纤通信的跨阻前置放大器。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。