impedance

noun

1. 阻抗
   a measurement of the total resistance of a piece of electrical equipment, etc. to the flow of an alternating current

1. Two types of power amplifier for measuring speaker impedance curve were analysed.
   摘要分析了2种应用于测量扬声器阻抗曲线的功率放大器。
2. Especially it solves the identification problem of high impedance fault well.
   尤其较好地解决了高阻抗非线性故障的识别问题。
3. Even if the volume of the speaker is changed, the impedance of the circuit is kept constant.
   即使扬声器的音量改变了，电路的阻抗保持不变。
4. A set of practical formulas is summarized for calculating the impedance and resistance components of trapper.
   总结了一套实用的阻波器阻抗和电阻分量的计算公式。
5. Effects of surface impedance characteristics of the structure on the two sides are different.
   结构两侧表面阻抗特性的影响规律和程度存在差异。
6. The chemical attack of sulfate on the concrete was studied by AC impedance technique.
   应用交流阻抗谱方法，研究了硫酸盐对混凝土的化学侵蚀。
7. Switching applications of high impedance circuits include low current, high resistance, and high impedance voltage applications.
   高阻电路的切换应用包括小电流、高电阻和高阻抗电压应用。
8. An virtual electronic automatic matching system was designed, used for RFID antenna impedance.
   构建了一个能为RFID天线阻抗的动态变化提供匹配的自动阻抗匹配虚拟系统。
9. This paper presents a design scheme of a single-phase circuit impedance measuring apparatus based on DSP.
   给出了一种基于DSP的单相阻抗测量仪设计方案。
10. High impedance voltage switching may be necessary in applications such as monitoring electrochemical cells and measuring semiconductor resistivity.
    在有些应用中，例如监测电化电池和测量半导体的电阻系数，则可能必须进行高阻抗电压切换。
11. Protective impedance and radio interference filters are disconnected before carrying out the tests.
    在进行该试验前断开保护阻抗和无线电干扰滤波器。
12. An Electrical Impedance Tomography system for thorax monitoring was introduced.
    介绍了一种用于胸腔监测的电阻抗成像系统。
13. A model of contact impedance is introduced and its influence on high speed signal transmission is analyzed.
    提出射频同轴插接器的高频接触阻抗模型，研究它对高速信号传输的影响。
14. Increase the impedance of the system can play the role of protective devices;
    增加了系统的阻抗可以起到保护装置的作用；
15. The applications of electrochemical impedance spectroscopy to the research of electrodeposition of various metals and alloys were introduced.
    介绍了电化学阻抗谱在各种金属及合金的电沉积研究中的应用。
16. This current will cause errors in low current measuring or in high impedance circuits.
    在测量小电流或高阻电路时，该电流会引起误差。
17. Percolation structure of concrete was tested and characterized by AC impedance spectroscopy.
    混凝土的渗流结构可以用交流阻抗谱方法来测定和表征。
18. This paper presents a method of the lead-acid battery internal resistance measurement based on AC impedance method.
    给出了一种基于交流阻抗法的铅酸蓄电池内阻测量方法。
19. According to the electric parameters, the influence of the resonator structure on the equivalent impedance was analyzed.
    以所提取的电参数为依据，分析了谐振器的结构对谐振器的等效阻抗的影响。
20. A design of Magnetic resonance electrical impedance tomography ( MREIT) system is presented.
    介绍了磁共振电阻抗成像系统设计。
21. It also gave the hardware of the control system and the design of the finger's impedance torque controller.
    给出了控制系统的硬件实现和手指阻抗力矩控制器的设计。
22. In this paper, the complex impedance property of PTC ceramics has been investigated.
    本文研究了PTC陶瓷的复阻抗特性。
23. Input impedance of a network when the output is short-circuited, shorted or grounded.
    在（电）网络中，当输出短路、短接或接地时的输入阻抗。
24. Impedance analysis of a piezoelectric smart beam with a single PZT sheet attached to is implemented in this paper.
    讨论了单压电片驱动下钢梁的纵向振动和弯曲振动，得到了压电智能梁的机械阻抗。
25. Both of these issues effect the impedance characteristics of the cabling.
    这两个问题的影响阻抗特性的电缆。
26. Abstract: The design method of impedance matching for planar slot antenna is discussed in this paper.
    文摘：本文对平板裂缝天线阻抗匹配设计方法进行了讨论。
27. Common low impedance connection points are signal low and guard.
    常见的低阻抗连接点为信号低电平和保护线路。
28. Through numerical simulation, a research is taken on the impedance, gain, radiation plot of the antenna.
    通过计算测量，对天线的阻抗特性、增益和方向图进行了研究。
29. The cross-polarization isolation and impedance matching are discussed.
    分析了天线的交叉极化特性和阻抗匹配特性。
30. The high impedance devices and signal sources must also be shielded.
    高阻设备和信号源也必须是屏蔽的。

noun

1. a material's opposition to the flow of electric current

   Synonym:    electric resistanceelectrical resistanceresistanceresistivityohmic resistance