Common connector characteristic impedances are 50Ω and 75Ω.
信号完整性基本上是阻抗匹配的问题。
Signal integrity is basically a matter of impedance matching.
因此,我们定义了一个称为阻抗的量。
Instead, we define a quantity called an impedance.
注意这是独立的噪声产生阻抗。
Notice that this is independent of the noise generating resistance.
有两种主要的电缆阻抗,75欧姆和50欧姆。
There are two main cable impedances in use, 75 Ohm and 50 Ohm.
段阻抗阻抗激励源连接阻抗相线.
Line Impedances Shunt impedances Source Voltages Connection Impedances.
USB信号也采样这种方法做阻抗匹配。
The USB signal is also sampled by this method for impedance matching.
这种材料另外一种更强大的能用于传感器的性能是其阻抗。
Another great property of this material thatcan be used for sensors is its resistance.
为了确定阻抗和电容,将Si82xx转换为两端器件。
To determine resistance and capacitance, the Si84xx is converted into a 2-terminal device.
降低因相电压与中性点电压之间的不平衡等因素而产生的阻抗。
Reduces the impedances produced by factors such as voltage imbalance between phase and neutral.
等距则主要是为了保证两者差分阻抗一致,减少反射。
The equal distanceis mainly to ensure the consistency of the two differential impedances and reduce the reflection.
此处P是热噪声功率用瓦表示。注意到这是独立的噪声产生阻抗。
Where P is the thermal noise power in watts.Notice that this is independent of the noise generating resistance.
为了减少接地阻抗,避免辐射,地线的长度应小于1/20波长。
To reduce the ground impedance, to avoid radiation, the length of the ground should be less than 1/ 20 wavelength.
这个行为对于任何类型的自知都是必不可少的条件,因此,作为一种规则,它遭遇了相当多的阻抗。
This act is the essential condition for self-knowledge,and it therefore as a rule meet with considerable resistance.
PicoTC-08仪器有2米Ω输入阻抗,所以会有小于12米的电缆0.01%错误。
The Pico TC-08 has an input impedance of 2MW so will have an error of less than 0.01% for 12 meters of such cable.
如果无低阻抗接地层,则几乎不可能避免上述共享阻抗,特别是在高频下。
Without a low-impedance ground plane,it is almost impossible to avoid these shared impedances, especially at high frequencies.
如果是电路板上的高速信号线与负载阻抗不匹配时,会产生振荡、辐射干扰等。
If the circuit board on the high-speed signal lines andload impedance does not match, will produce shock, radiation interference.
这些因素影响了输出阻抗以及等效的系统源电压,最终对于接收信号的功率产生影响。
These affect the output impedance and the equivalent source voltage of the system, ultimately having an impact on the received signal power.
模拟信号的源阻抗(RS)和内部采样开关阻抗(RSS)直接影响电容器CHOLD所需的充电时间。
The source impedance(RS) and the internal sampling switch(RSS) impedance directly affect the time required to charge the capacitor CHOLD.
ASIC阻抗意味着,与基于CPU的实现相比,在ASIC中实现算法时不会有明显的加速。
ASIC resistance means that there will be no significant speedup when implementing the algorithm in an ASIC when compared to a CPU-based implementation.
LM45的低输出阻抗,线性输出和精确的固有校准使得与读出或控制电路的接口特别容易。
The LM35's low output impedance, linear output, and precise inherent calibration make interfacing to readout or control circuitry especially easy.
如此一来,每台扬声器将接收250瓦(不考虑功放功率在不同阻抗下的变化,也不考虑电缆损耗)。
That way, each speaker will receive 250 watts(notconsidering the change in amplifier power at different impedances, and not considering cable losses).
线路损耗和受控阻抗:阻抗在信号质量中起着重要的作用,但也有其他因素影响信号质量。
Line Loss and Controlled Impedance: Impedance plays an important role in signal quality, but there are also other factors that affect signal quality.
当检测到温度发生变化时,控制电路自动地调整阻抗,以实现电流的补偿,而无须用户干预。
As a temperature change is detected,control circuits automatically adjust resistance to achieve the compensating current value without any user intervention.
它的主要特性如下:无极性,绝缘阻抗很高,频率特性优异(频率响应宽广),而且介质损失很小。
Its main characteristics are: no polarity, high insulation resistance, excellent frequency characteristics(wide frequency response), and low dielectric loss.
两个标准特性阻抗为50欧姆,用于中等功率环境,75欧姆,通常用于连接天线和住宅设施。
Two standard characteristic impedances are 50 ohm, used in moderate power environments, and 75 ohm, common for connections to antennas and residential installations.
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