mutual inductance

简明释义

互感

英英释义

例句

1.The concept of mutual inductance is essential in understanding how transformers operate.

理解变压器如何工作的关键在于互感的概念。

2.In a coupled inductor, the mutual inductance can significantly affect the circuit's performance.

在耦合电感中，互感会显著影响电路的性能。

3.When the distance between two inductors increases, their mutual inductance decreases.

当两个电感器之间的距离增加时，它们的互感会减少。

4.The mutual inductance between two coils determines how much voltage is induced in one coil by the other.

两个线圈之间的互感决定了一个线圈对另一个线圈感应的电压大小。

5.Engineers calculate mutual inductance to design more efficient electrical systems.

工程师计算互感以设计更高效的电气系统。

作文

In the realm of electrical engineering and physics, the concept of mutual inductance plays a crucial role in understanding how two coils or circuits can interact with one another through electromagnetic fields. Mutual inductance is defined as the ability of one coil to induce an electromotive force (EMF) in another coil when the current flowing through the first coil changes. This phenomenon is fundamental to the operation of transformers, inductors, and various types of electrical devices that rely on magnetic fields for their functionality.To comprehend mutual inductance, we must first explore the principles of inductance itself. Inductance is a property of an electrical circuit that opposes changes in current. When an electric current flows through a coil of wire, it generates a magnetic field around it. If another coil is placed within this magnetic field, the changing magnetic flux can induce a voltage in the second coil. The degree to which this occurs depends on several factors, including the number of turns in each coil, the distance between them, and the core material used.The mathematical representation of mutual inductance is given by the symbol M, and it can be quantified in henries (H). The relationship between the induced EMF in one coil and the rate of change of current in another coil is expressed by the formula: EMF = -M (dI/dt)where EMF is the electromotive force induced in the second coil, M is the mutual inductance, and dI/dt represents the rate of change of current in the first coil. This equation illustrates how a change in current in one coil can lead to a proportional change in voltage in another coil, demonstrating the interconnectedness of these two components.The applications of mutual inductance are vast and varied. In transformers, for instance, two coils are wound around a common core. When alternating current flows through the primary coil, it creates a changing magnetic field that induces a voltage in the secondary coil. This principle allows for the efficient transfer of electrical energy between circuits at different voltage levels. Additionally, mutual inductance is essential in wireless charging systems and inductive heating processes, where energy is transferred without direct electrical connections.Moreover, understanding mutual inductance is vital for designing circuits that minimize interference and optimize performance. Engineers must consider the effects of mutual inductance when laying out circuit boards, as unintended coupling between components can lead to signal degradation and noise. Techniques such as shielding and proper spacing can mitigate these issues, ensuring that devices function as intended.In conclusion, mutual inductance is a fundamental concept in electromagnetism that describes the interaction between two coils through magnetic fields. Its significance extends across various applications in electrical engineering, from powering everyday devices to advancing technologies in renewable energy and wireless communication. By grasping the principles of mutual inductance, engineers and students alike can better understand the intricate relationships that govern electrical systems, paving the way for innovations that harness the power of electromagnetism effectively.

在电气工程和物理学领域，互感的概念在理解两个线圈或电路如何通过电磁场相互作用中起着至关重要的作用。互感被定义为一个线圈在另一个线圈中感应电动势（EMF）的能力，当第一个线圈中的电流发生变化时。这一现象是变压器、电感器和各种依赖磁场功能的电气设备操作的基础。要理解互感，我们必须首先探讨自感的基本原理。自感是电路的一种性质，它反对电流的变化。当电流流过一根电线圈时，它会在周围产生一个磁场。如果另一个线圈放置在这个磁场内，变化的磁通量可以在第二个线圈中感应出电压。这一过程的程度取决于几个因素，包括每个线圈的匝数、它们之间的距离和使用的核心材料。互感的数学表示由符号M给出，可以用亨利（H）来量化。一个线圈中感应电动势与另一个线圈中电流变化率之间的关系可以用公式表示：EMF = -M (dI/dt)其中EMF是感应在第二个线圈中的电动势，M是互感，dI/dt代表第一个线圈中电流的变化率。这个方程表明，一个线圈中电流的变化可以导致另一个线圈中电压的成比例变化，展示了这两个组件之间的相互联系。互感的应用广泛而多样。例如，在变压器中，两个线圈绕在一个共同的核心上。当交流电流流过主线圈时，会产生一个变化的磁场，从而在副线圈中感应出电压。这一原理使得在不同电压水平的电路之间高效地传输电能成为可能。此外，互感在无线充电系统和感应加热过程中也至关重要，这些过程在没有直接电连接的情况下转移能量。此外，理解互感对于设计能够最小化干扰和优化性能的电路至关重要。工程师在布置电路板时必须考虑互感的影响，因为组件之间的意外耦合会导致信号衰减和噪声。屏蔽和适当间距等技术可以缓解这些问题，确保设备按预期功能运行。总之，互感是电磁学中的一个基本概念，描述了两个线圈通过磁场之间的相互作用。它的重要性在电气工程的各种应用中延伸，从为日常设备供电到推动可再生能源和无线通信技术的进步。通过掌握互感的原理，工程师和学生都可以更好地理解支配电气系统的复杂关系，为有效利用电磁力的创新铺平道路。