电压放大

The tester with DSP core could get excellent results by judging and adopting the different value of voltage and current, programmed amplifying and changing the frequency of sample.

系统以DSP为控制核心，可自动识别并适应不同的电压和电流等级，采用程控放大、变化采样频率以获得优化的阵列测试效果。

Added to the electrode, it will produce glow discharge in the discharge tube and then the gas molecule

在电极上加高电压，放电管中产生辉光放电，就可使气体分子释放出激光，将激光能量放大后就形成对材料

Furthermore, because of the device excellent transistors performance and N-shaped NDR phenomenon, the studied device provides a good potential for linear, analog amplification, and logic circuit applications.

所研究的元件具有良好的崩溃电压、转导值及高线性度，以提供讯号放大和逻辑电路上之应用。

This paper brings forward new method on measuring the plate current density of ESP and introduces each parts of the measuring device such as the transforming of I/O, the magnification of pressure code, the transforming of A/D, the interface circuit, the data receiving method of computer and etc.

本论文就电除尘器的板电流密度的测试提出了新的方法，并就测试装置的各组成部分，如：I/V转换及电压信号的放大、A/D转换及接口电路、微机对数据的接收方法等作了详细的说明。

Also, we select the signal collecting circuit of three output polars, the coupling circuit using capacitance and resistance, the alternating amplify processing circuit, the positive feedback retardation comparsion, the driving circuit of output current and the stabilization voltage supply circuit.

选择了InSb磁阻三端输出型信号采集电路，阻容耦合型交流放大电路，正反馈迟滞型电压比较器和大电流推挽驱动电路及稳压电源电路。

This paper presented the main functions and characteristics of Multisim8.0, and the main qualities of high frequency tunable amplifier such as voltage gain, transmission bands and selectivity were studied using simulation analysis and testing technologies of Multisim 8.0. The results are visual and precise, and prove the theory very well. This software has powerful simulation and analysis function, by which the analysis and design of high frequency circuit are not only more precise and credible, but also more closed to the real circuit running status.

本文介绍了Multisim8.0仿真软件的主要功能及特点，并结合该软件对高频单调谐放大电路的电压增益、通频带、选择性等主要质量指标进行了测试与仿真分析，结果直观、精确，很好地验证了理论，表明该软件有强大的仿真和分析功能，在实现高频电路分析和设计方面不仅高效、可靠，而且具有逼近真实电路的效果。

As the component of sensor board, the silicon photoelectric cell transforms radiation-ray from the track mark into electrical signal, which is amplified by operation amplifier into voltage signal reshaped by the pulse shaping circuit.

车载传感器板通过硅光电池检测轨道标志的反射光信号，运放将信号放大并转换成电压信号，再通过脉冲整形转化为脉冲信号，实现了轨道标志的检测。

Keyboard function set through waveform type,frequency,amplitude,duty cycle,and other parameters of a signal to the microprocessor 89C51 control,MAX038 generated by the various signals,In this process,four-channel signal through D/A converters have simulated voltage and current,It transported up through the analog signal amplification,it enters the frequency MAX038 coarse-IIN,fine-tuning FADJ end,the duty cycle control-DADJ. In its COSC port received a three relays and oscillation frequency capacitance as a choice.

通过键盘设定函数波形种类、频率、幅度、占空比等参数的一个信号进入单片机89C51控制，由MAX038产生各种波形信号，在此过程中信号通过四通道D/A转换器产生模拟电压和电流，它再通过运放将模拟的信号放大，它进入MAX038的频率粗调端IIN、微调端FADJ、占空比控制端DADJ、在它的COSC端口接一个继电器和三个振荡电容作为频率选择。

It takes components of varying impedances, voltages, and levels; uses switches and attenuators, and has an amplification stage of its own.

它利用各种阻抗、电压和点评的部件，使用开关和衰减器，并具有自身的放大前级。

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。