movable coil

简明释义

动圈

英英释义

例句

1.The movable coil mechanism is crucial for accurate measurements in analog devices.

在模拟设备中，可动线圈机制对准确测量至关重要。

2.To improve efficiency, engineers are experimenting with different materials for the movable coil.

为了提高效率，工程师正在尝试不同材料制作可动线圈。

3.The sound quality of the speaker is largely determined by the design of the movable coil.

扬声器的音质在很大程度上取决于可动线圈的设计。

4.The movable coil in the microphone converts sound waves into electrical signals.

麦克风中的可动线圈将声波转换为电信号。

5.In a moving coil meter, the movable coil reacts to the magnetic field to indicate current flow.

在动圈电表中，可动线圈对磁场的反应指示电流流动。

作文

In the realm of physics and engineering, the concept of a movable coil plays a crucial role in understanding how electrical devices function. A movable coil is essentially a coil of wire that can move within a magnetic field. This movement is fundamental to the operation of various instruments, including galvanometers and loudspeakers. The principle behind a movable coil is based on electromagnetic induction, where a current-carrying conductor experiences a force when placed in a magnetic field. This phenomenon was first described by Hans Christian Ørsted in the early 19th century, leading to significant advancements in electromagnetism.The design of a movable coil system typically involves a coil suspended in such a way that it can rotate freely. When an electric current passes through the coil, it generates a magnetic field that interacts with the external magnetic field, causing the coil to rotate. This rotation can be measured and used to indicate various electrical quantities, making it an essential component in measuring devices. For instance, in a galvanometer, the angle of rotation of the movable coil is proportional to the current flowing through it, allowing for precise measurements.Moreover, movable coils are not limited to measurement devices but are also integral to sound reproduction systems. In loudspeakers, a movable coil is attached to a diaphragm. When an audio signal is applied to the coil, it moves back and forth in response to the changing current, causing the diaphragm to vibrate and produce sound waves. This mechanism highlights the versatility and importance of the movable coil in modern technology.Understanding the functionality of a movable coil requires a basic knowledge of electromagnetism and circuit theory. Students and professionals in the fields of electrical engineering and physics often engage with these concepts through practical experiments and theoretical studies. For example, creating a simple galvanometer using a movable coil can help illustrate the principles of electromagnetic induction and the relationship between electricity and magnetism.In conclusion, the movable coil is a fundamental component in various electrical and electronic devices. Its ability to convert electrical energy into mechanical movement and vice versa has made it indispensable in both measurement and sound production technologies. As we continue to innovate in the fields of electronics and engineering, the principles governing the movable coil will undoubtedly remain relevant, inspiring future generations to explore and expand upon these foundational concepts in electromagnetism. By studying the movable coil, we gain insights into the intricate relationships between electricity, magnetism, and motion, paving the way for advancements in technology that can enhance our daily lives.

在物理和工程领域，movable coil（可动线圈）的概念在理解电气设备的工作原理中起着至关重要的作用。movable coil本质上是一个可以在磁场中移动的线圈。当电流通过线圈时，它会在磁场中产生力，这一运动对各种仪器的操作至关重要，包括电流计和扬声器。movable coil背后的原理基于电磁感应，即当导体中有电流通过时，它会在磁场中受到力的作用。这一现象在19世纪初由汉斯·克里斯蒂安·奥斯特描述，为电磁学的发展奠定了基础。movable coil系统的设计通常涉及一个悬挂的线圈，使其能够自由旋转。当电流通过线圈时，它会生成一个与外部磁场相互作用的磁场，从而导致线圈旋转。这种旋转可以被测量并用于指示各种电气量，使其成为测量设备中的一个基本组件。例如，在电流计中，movable coil的旋转角度与通过它的电流成正比，从而实现精确测量。此外，movable coil不仅限于测量设备，还在声音再现系统中发挥着重要作用。在扬声器中，movable coil连接到振膜。当音频信号施加到线圈时，它会根据电流的变化前后移动，导致振膜振动并产生声波。这一机制突显了movable coil在现代技术中的多功能性和重要性。理解movable coil的功能需要对电磁学和电路理论有基本的了解。电气工程和物理领域的学生和专业人士通常通过实践实验和理论研究来接触这些概念。例如，使用movable coil制作简单的电流计可以帮助说明电磁感应原理以及电与磁之间的关系。总之，movable coil是各种电气和电子设备中的基本组件。它将电能转换为机械运动及其反向转换的能力使其在测量和声音生产技术中不可或缺。随着我们在电子和工程领域的不断创新，支配movable coil的原理无疑将继续保持相关性，激励未来的几代人探索和扩展电磁学的这些基础概念。通过研究movable coil，我们获得了对电、磁和运动之间复杂关系的深入理解，为推动技术进步铺平了道路，这些进步能够提升我们的日常生活。