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| 软件名称 |
Agilent Impedance Measurement-安捷伦阻抗测量手册 |
| 运行环境 |
Win9X/Win2000/WinXP/Win2003/ |
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| 整理时间 |
2008-4-12 11:07:26 |
| 软件星级 |
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| 软件语言 |
简体中文 |
| 软件类型 |
国产软件 |
| 授权方式 |
共享软件 |
| 软件大小 |
333 KB |
| 相关连接 |
csb23@126.com 官方主页 没有预览图片
[收 藏] |
| 下载统计 |
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| 解压密码 |
www.elecfans.com |
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 软件简介 |
Impedance is an important parameter used to characterize electronic circuits, components, and
the materials used to make components. Impedance (Z) is generally defined as the total opposition
a device or circuit offers to the flow of an alternating current (AC) at a given frequency, and
is represented as a complex quantity which is graphically shown on a vector plane. An impedance
vector consists of a real part (resistance, R) and an imaginary part (reactance, X) as shown in
Figure 1-1. Impedance can be expressed using the rectangular-coordinate form R+jX or in the
polar form as a magnitude and phase angle: |Z|∠θ. Figure 1 also shows the mathematical relationship
between R, X, |Z| and θ. In some cases, using the reciprocal of impedance is mathematically
expedient. In which case 1/Z= 1/(R+jX)= Y= G+jB, where Y represents admittance, G conductance,
and B susceptance. The unit of impedance is the ohm (Ω), and admittance is the
siemen (S). Impedance is a commonly used parameter and is especially useful for representing a
series connection of resistance and reactance, because it can be expressed simply as a sum, R and
X. For a parallel connection, it is better to use admittance (see Figure 1-2).
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