magnetic flux density

简明释义

磁感应密度

英英释义

例句

1.The research focused on the relationship between temperature and magnetic flux density 磁通量密度 in superconductors.

研究集中在温度与超导体中磁通量密度 磁通量密度之间的关系。

2.By increasing the current, we can enhance the magnetic flux density 磁通量密度 produced by the solenoid.

通过增加电流，我们可以增强电磁铁产生的磁通量密度 磁通量密度。

3.The magnetic flux density 磁通量密度 in this area is strong enough to affect nearby electronic devices.

该区域的磁通量密度 磁通量密度足够强大，会影响附近的电子设备。

4.In order to design a more efficient motor, we need to analyze the magnetic flux density 磁通量密度 in the core material.

为了设计更高效的电动机，我们需要分析核心材料中的磁通量密度 磁通量密度。

5.The engineer measured the magnetic flux density 磁通量密度 around the coil to ensure it was functioning correctly.

工程师测量了线圈周围的磁通量密度 磁通量密度以确保其正常运作。

作文

Magnetic fields are an essential aspect of physics and engineering, influencing various phenomena in our daily lives. One of the key concepts related to magnetic fields is magnetic flux density, which plays a crucial role in understanding how magnetic fields interact with materials and devices. In this essay, we will explore the definition of magnetic flux density and its significance in both theoretical and practical applications.To begin with, magnetic flux density is defined as the amount of magnetic flux passing through a unit area perpendicular to the direction of the magnetic field. It is represented by the symbol B and is measured in teslas (T) in the International System of Units (SI). The concept of magnetic flux density helps us quantify the strength and direction of magnetic fields. This is particularly important in various applications, such as in electric motors, transformers, and magnetic resonance imaging (MRI).One of the fundamental principles behind magnetic flux density is that it is directly proportional to the magnetic field strength (H) and the permeability of the medium (μ) through which the magnetic field is passing. This relationship can be expressed mathematically as B = μH. Understanding this equation is vital for engineers and scientists, as it allows them to manipulate and design systems that utilize magnetic fields effectively.In practical terms, magnetic flux density is crucial in the design of electric motors. In these devices, magnetic fields generated by coils of wire interact with permanent magnets or other coils to produce motion. The efficiency and performance of the motor depend significantly on the magnetic flux density within the core material. By optimizing this density, engineers can enhance the motor's output and reduce energy losses, leading to more efficient machines.Another application of magnetic flux density is found in transformers, which are used to transfer electrical energy between circuits. The operation of a transformer relies on the principle of electromagnetic induction, where a changing magnetic field induces a voltage in nearby coils. The magnetic flux density within the transformer core must be carefully controlled to ensure that the device operates efficiently and safely. If the density exceeds certain limits, it can lead to saturation, causing the transformer to malfunction or overheat.In the medical field, magnetic flux density is a critical factor in magnetic resonance imaging (MRI). MRI machines use strong magnetic fields to produce detailed images of the inside of the human body. The strength of the magnetic field, represented by magnetic flux density, affects the quality and clarity of the images produced. Radiologists and technicians must understand how to adjust the magnetic flux density to achieve optimal imaging results while ensuring patient safety.In conclusion, magnetic flux density is a fundamental concept in the study of magnetism, with significant implications in various fields, including engineering and medicine. By understanding the definition and applications of magnetic flux density, we can appreciate its importance in designing efficient machines, enhancing medical imaging techniques, and advancing our knowledge of magnetic phenomena. As technology continues to evolve, the role of magnetic flux density will undoubtedly remain at the forefront of scientific research and innovation.

磁场是物理学和工程学中的一个重要方面，影响着我们日常生活中的各种现象。与磁场相关的关键概念之一是磁通密度，它在理解磁场如何与材料和设备相互作用方面起着至关重要的作用。在这篇文章中，我们将探讨磁通密度的定义及其在理论和实际应用中的重要性。首先，磁通密度被定义为垂直于磁场方向的单位面积上通过的磁通量的数量。它用符号B表示，并在国际单位制(SI)中以特斯拉(T)为单位进行测量。磁通密度的概念帮助我们量化磁场的强度和方向。这在电动机、变压器和磁共振成像(MRI)等各种应用中尤其重要。磁通密度背后的一个基本原理是，它与磁场强度(H)和通过磁场的介质的磁导率(μ)成正比。这个关系可以用数学公式B = μH来表示。理解这个方程对工程师和科学家至关重要，因为它使他们能够有效地操控和设计利用磁场的系统。在实际应用中，磁通密度在电动机的设计中至关重要。在这些设备中，线圈产生的磁场与永磁体或其他线圈相互作用以产生运动。电动机的效率和性能在很大程度上取决于核心材料中的磁通密度。通过优化该密度，工程师可以提高电动机的输出并减少能量损失，从而制造出更高效的机器。磁通密度的另一个应用可以在变压器中找到，变压器用于在电路之间传输电能。变压器的操作依赖于电磁感应原理，其中变化的磁场在附近的线圈中感应出电压。变压器核心中的磁通密度必须经过仔细控制，以确保设备高效安全地运行。如果密度超过某些限制，可能会导致饱和，导致变压器故障或过热。在医学领域，磁通密度是磁共振成像(MRI)中的一个关键因素。MRI机器使用强磁场生成人体内部的详细图像。磁场的强度，由磁通密度表示，影响生成图像的质量和清晰度。放射科医生和技术人员必须了解如何调整磁通密度以获得最佳成像结果，同时确保患者安全。总之，磁通密度是研究磁性中的一个基本概念，在工程和医学等多个领域具有重要意义。通过理解磁通密度的定义和应用，我们可以欣赏到它在设计高效机器、增强医学成像技术和推动我们对磁现象的认识中的重要性。随着技术的不断发展，磁通密度的作用无疑将在科学研究和创新的前沿继续发挥作用。