apparent impedance

简明释义

视阻抗;

英英释义

例句

1.The apparent impedance 表观阻抗 can vary significantly with frequency, affecting circuit performance.

随着频率的变化，表观阻抗 apparent impedance 可能会显著变化，从而影响电路性能。

2.The apparent impedance 表观阻抗 is crucial for understanding how much power a device will draw from the supply.

了解设备从电源吸取多少功率时，表观阻抗 apparent impedance 是至关重要的。

3.In an AC circuit, the total voltage and current can be analyzed to determine the apparent impedance 表观阻抗 of the system.

在交流电路中，可以分析总电压和电流以确定系统的表观阻抗 apparent impedance。

4.Engineers often use the concept of apparent impedance 表观阻抗 when designing circuits to ensure efficiency.

工程师在设计电路时经常使用表观阻抗 apparent impedance 的概念以确保效率。

5.When measuring the apparent impedance 表观阻抗 of a transformer, it's important to account for both resistive and reactive components.

在测量变压器的表观阻抗 apparent impedance 时，考虑到电阻和反应成分是很重要的。

作文

In the field of electrical engineering, the concept of apparent impedance plays a crucial role in understanding how circuits behave under alternating current (AC) conditions. The term apparent impedance refers to the total opposition that a circuit presents to the flow of AC, combining both resistance and reactance. This is important because, unlike direct current (DC) circuits where only resistance is considered, AC circuits involve both resistive and reactive components, which can significantly affect the performance of electrical systems.To elaborate, apparent impedance is represented by the symbol Z and is measured in ohms (Ω). It can be calculated using the formula Z = V/I, where V is the voltage across the circuit and I is the current flowing through it. However, this formula only provides a basic understanding; for a more comprehensive analysis, we must consider the phase angle between the voltage and current. The phase angle indicates the degree to which the current waveform lags or leads the voltage waveform, which is a characteristic of reactive components like inductors and capacitors.The significance of apparent impedance extends beyond mere calculations; it influences the design and operation of electrical devices. For example, in power systems, understanding the apparent impedance helps engineers to optimize the performance of transformers and transmission lines. A low apparent impedance means that the circuit can efficiently deliver power without excessive losses, while a high apparent impedance can lead to voltage drops and reduced efficiency.Moreover, the concept of apparent impedance is vital in audio engineering, where speakers and amplifiers must work together effectively. If the apparent impedance of a speaker does not match the output impedance of an amplifier, it can result in poor sound quality or even damage to the equipment. Therefore, audio engineers must carefully consider apparent impedance when designing audio systems to ensure compatibility and optimal performance.In addition to its practical applications, the study of apparent impedance also offers insights into the behavior of complex electrical networks. By analyzing how apparent impedance changes with frequency, engineers can better understand resonance phenomena and filter design, which are essential in various technologies, from radio communications to signal processing.In conclusion, the concept of apparent impedance is fundamental in electrical engineering and has far-reaching implications in both practical applications and theoretical studies. By grasping the intricacies of apparent impedance, engineers can enhance the efficiency, reliability, and quality of electrical systems. As technology continues to evolve, the importance of understanding apparent impedance will only grow, making it a critical area of knowledge for anyone involved in the field of electrical engineering.

在电气工程领域，表观阻抗的概念在理解电路在交流（AC）条件下的行为方面起着至关重要的作用。术语表观阻抗指的是电路对交流电流流动的总阻抗，结合了电阻和电抗。这一点非常重要，因为与只考虑电阻的直流（DC）电路不同，交流电路涉及到电阻和电抗成分，这可能会显著影响电气系统的性能。具体来说，表观阻抗用符号Z表示，单位为欧姆（Ω）。它可以通过公式Z = V/I计算，其中V是电路两端的电压，I是流过电路的电流。然而，这个公式只提供了基本的理解；为了进行更全面的分析，我们必须考虑电压和电流之间的相位角。相位角表示电流波形滞后或超前于电压波形的程度，这是电感器和电容器等反应成分的特征。表观阻抗的重要性不仅仅体现在计算上；它还影响电气设备的设计和操作。例如，在电力系统中，了解表观阻抗有助于工程师优化变压器和输电线路的性能。较低的表观阻抗意味着电路可以有效地传递电力而不会造成过多损失，而较高的表观阻抗可能导致电压降和效率降低。此外，表观阻抗的概念在音频工程中也至关重要，扬声器和放大器必须有效配合。如果扬声器的表观阻抗与放大器的输出阻抗不匹配，可能导致音质差或甚至损坏设备。因此，音频工程师在设计音频系统时必须仔细考虑表观阻抗以确保兼容性和最佳性能。除了实际应用外，表观阻抗的研究还提供了对复杂电气网络行为的深入见解。通过分析表观阻抗随频率变化的情况，工程师可以更好地理解共振现象和滤波器设计，这在从无线通信到信号处理的各种技术中都是至关重要的。总之，表观阻抗的概念在电气工程中是基础性的，并在实际应用和理论研究中具有深远的影响。通过掌握表观阻抗的复杂性，工程师可以提高电气系统的效率、可靠性和质量。随着技术的不断发展，理解表观阻抗的重要性只会增加，使其成为任何参与电气工程领域的人的关键知识领域。