a.c. electric dipole

简明释义

交流电偶极子;

英英释义

例句

1.In radio frequency applications, an a.c. electric dipole 交流电偶极子 is often used to transmit signals.

在射频应用中，a.c. electric dipole 交流电偶极子 常用于信号传输。

2.The behavior of an a.c. electric dipole 交流电偶极子 in a uniform electric field can be predicted using classical electrodynamics.

在均匀电场中，a.c. electric dipole 交流电偶极子 的行为可以通过经典电动力学进行预测。

3.Researchers are studying the interaction between light and an a.c. electric dipole 交流电偶极子 to develop better optical devices.

研究人员正在研究光与 a.c. electric dipole 交流电偶极子 的相互作用，以开发更好的光学设备。

4.An a.c. electric dipole 交流电偶极子 can oscillate at various frequencies, affecting its radiation pattern.

一个 a.c. electric dipole 交流电偶极子 可以以不同的频率振荡，从而影响其辐射模式。

5.The efficiency of an a.c. electric dipole 交流电偶极子 antenna can be significantly improved by optimizing its design.

通过优化设计，可以显著提高 a.c. electric dipole 交流电偶极子 天线的效率。

作文

In the field of electromagnetism, understanding the concept of an a.c. electric dipole is essential for grasping how alternating current (a.c.) interacts with electric fields. An a.c. electric dipole refers to a pair of equal and opposite electric charges or magnetic poles that oscillate in time with an alternating current. This oscillation creates a changing electric field that can propagate through space, leading to various applications in technology, including antennas and wireless communication systems.To comprehend the significance of an a.c. electric dipole, it is crucial to first understand what an electric dipole is. An electric dipole consists of two equal and opposite charges separated by a distance. When these charges are static, they create a uniform electric field around them. However, when subjected to an alternating current, the dipole experiences changes in its orientation and magnitude, resulting in a dynamic electric field.The behavior of an a.c. electric dipole can be analyzed using Maxwell's equations, which describe how electric and magnetic fields interact. When an alternating current flows through the dipole, it generates electromagnetic waves that radiate outward from the source. These waves carry energy and information, making a.c. electric dipoles fundamental components in the design of antennas used for transmitting and receiving radio signals.Furthermore, the efficiency of an a.c. electric dipole in radiating electromagnetic waves depends on several factors, including the frequency of the alternating current and the physical dimensions of the dipole itself. For instance, in radio frequency applications, the length of the dipole is typically half the wavelength of the signal being transmitted. This relationship ensures optimal radiation patterns and minimizes energy loss.The applications of a.c. electric dipoles extend beyond telecommunications. They are also utilized in medical imaging technologies, such as MRI (Magnetic Resonance Imaging), where oscillating magnetic fields interact with the dipoles in human tissues. Understanding the principles behind a.c. electric dipoles allows researchers and engineers to innovate and improve medical devices, enhancing diagnostic capabilities.In summary, an a.c. electric dipole is a pivotal concept in electromagnetism that illustrates how alternating currents can generate dynamic electric fields. From wireless communication to medical imaging, the implications of this concept are vast and impactful. As technology continues to evolve, the study of a.c. electric dipoles will remain crucial in advancing our understanding of electromagnetic phenomena and their practical applications in everyday life.

在电磁学领域，理解“a.c. electric dipole”这一概念对于掌握交流电（a.c.）如何与电场相互作用至关重要。“a.c. electric dipole”指的是一对在交流电中随时间振荡的相等且相反的电荷或磁极。这种振荡产生了一个变化的电场，可以通过空间传播，导致在技术中的各种应用，包括天线和无线通信系统。要理解“a.c. electric dipole”的重要性，首先必须了解什么是电偶极子。电偶极子由两个相等且相反的电荷组成，它们之间有一定的距离。当这些电荷静止时，它们在周围产生均匀的电场。然而，当受到交流电的作用时，偶极子会经历其方向和大小的变化，从而导致动态电场的产生。可以使用麦克斯韦方程组来分析“a.c. electric dipole”的行为，这些方程描述了电场和磁场如何相互作用。当交流电流通过偶极子时，它会产生向外辐射的电磁波。这些波携带能量和信息，使得“a.c. electric dipole”成为设计用于发送和接收无线信号的天线的基本组成部分。此外，“a.c. electric dipole”在辐射电磁波的效率取决于多个因素，包括交流电的频率和偶极子的物理尺寸。例如，在射频应用中，偶极子的长度通常是所传输信号波长的一半。这种关系确保了最佳的辐射模式并最小化能量损失。“a.c. electric dipole”的应用不仅限于电信。它们还被用于医学成像技术，如MRI（磁共振成像），其中振荡的磁场与人体组织中的偶极子相互作用。理解“a.c. electric dipole”背后的原理使研究人员和工程师能够创新和改进医疗设备，提高诊断能力。总之，“a.c. electric dipole”是电磁学中的一个关键概念，说明了交流电如何产生动态电场。从无线通信到医学成像，这一概念的影响广泛且深远。随着技术的不断发展，研究“a.c. electric dipole”将继续在推动我们对电磁现象及其在日常生活中的实际应用的理解中发挥重要作用。