信号阻抗

如果源信号阻抗与传输线阻抗、负载阻抗相等，则这些反射就会被消除。

If the source , transmission line and load impedance are equal these reflections are eliminated .

逆变器小信号输入阻抗分析及应用

Small-Signal Input Impedance Analysis of Inverters and Its Applications

分析了高速差分信号的阻抗匹配方案和抗干扰措施。

Impedance matching and noise elimination methods of high speed differential signal are analysed .

考察同步信号对阻抗阶跃响应的影响，研究在不同同步信号下对于阻尼次同步振荡的效果。

The impedance step response and sub-synchronous oscillation damping effect were researched with different synchronous signal . A new method was proposed to reduce the role of electromechanical coupling which based on TCSC mixed compensation .

当信号源阻抗与负载阻抗不成共轭匹配时，可以在两者之间插入一个共轭匹配的双口网络，以使负载获得最大功率。

Maximum power at the load can be obtained through insertion of a conjugate-matched two-port network between the source and the load in case the impedance of the former is not yet conjugate-matched with the impedance of the latter .

硬件设计以单片机为平台，设计了压力传感信号、生物阻抗信号、心电信号放大电路和QRS波的检出电路，同时还有液晶显示电路及单片机的接口电路。

It is incorporated with weighting , measuring body composition and analyzing HRV . The hardware is based on MPU . The circuits can magnify the weighting sensor signals , the-bioelectrical impedance signals , ECG signals and detect the QRS .

结合实验数据，讨论了磁体在交流小信号下的阻抗与频率的关系。

The relation between frequency and impedance is discussed by analyzing the results coming from the experiment of HTc magnet transporting different frequencies small ac signals .

提出了一种新的通过矢量网络分析仪测量大功率条件下等离子体天线信号通道输入阻抗的测试方法，该方法有助于等离子体天线动态重构特性的研究和实现快速阻抗匹配。

The input impedance of the signal channel of plasma-column antenna in high exciting power was measured by a new method , which is useful to the study of plasma antenna dynamic reconfiguration and the realization of fast impedance matching .

提出闭环阻抗控制，用以改善以电容电压为同步信号时TCSC的阻抗阶跃特性。

A close-loop control is put forward to improve the step characteristics of TCSC with capacitive voltage as its synchronization signal .

通过建立ADC及前向通道的等效模型及推导，在保证ADC的转换精度下，推出ADC的采样时间与信号放大电路输出阻抗的匹配关系，得到ADC最合适的采样频率。

This paper sets up the equivalent model of ADC and frontal channel , and determines the relation of the ADC sampling time and the value of the external driving source resistance to provide a desired ADC conversion accuracy , and an appropriate sampling frequency is inferred .

两个电容顶部的虚线表示切换交流信号时的线圈阻抗。

The dotted line connecting the tops of the two capacitors represents the low coil impedance to AC signals .

在这些应用中所采用的开关卡的类型和技术取决于被切换信号的幅值和阻抗。

The types of switch cards and the techniques used in these applications will depend on the magnitude and impedance of the voltages switched .

使用方波激励、同步采集响应波形的方法，配合后端的信号处理算法对阻抗体系实现测量。

The method employs rectangle wave to stimulate , collects response wave shape data synchronously , and uses signal dealing process to measure impedance system .

根据求得的电磁参量大小和检测线圈电压信号值，基于阻抗分析理论，分析了渗碳层特性对于涡流检测电磁场参量的影响规律。

According to the value of electromagnetic parameters and the voltage signal of testing coil gained by the solution , the paper seeked the relationship between the carburized layer depth and electromagnetic characteristics based on impedance analysis theory .

目的测量多路阻抗信号，使用分解多路阻抗信号信源方法分析阻抗信号。

Objective To separate source components of the thoracic electrical impedance , and to establish a novel multi channel measurement and signal analysis method .

体外向体内传输信号采用调制E类放大器输入电压的方式；体内向体外传输信号采用阻抗调制的方式，两种方式的信号接收均采用包络检波的方式把信号解调出来。

Modulating input voltage is used to transmit signals from in vitro to in vivo , and modulating impedance is used to transmit signals from in vivo to in vitro . Envelope detection is used to demodulate signals in both of these two signal transmission methods .

对信号交叉口的路阻函数进行了比较详细的分析，提出了隐性冲突点的概念，对信号交叉口阻抗函数中添加了与流向有关的心理参数项，并进行了分析和标定。

The concept of recessive conflict point is brought forward as well . Moreover , psychological parameter is analyzed and added to the resistance function of the signal intersection .