magnetic deflection

简明释义

磁偏转

英英释义

例句

1.In this experiment, we will observe the magnetic deflection of a charged particle in a magnetic field.

在这个实验中，我们将观察带电粒子在磁场中的磁偏转。

2.The scientist measured the magnetic deflection to determine the strength of the magnetic field.

科学家测量了磁偏转以确定磁场的强度。

3.The magnetic deflection of the needle indicates the presence of a nearby magnet.

指针的磁偏转表明附近有一个磁体。

4.The magnetic deflection observed was much greater than expected, suggesting a stronger magnetic source.

观察到的磁偏转远超预期，暗示着更强的磁源。

5.Engineers use magnetic deflection techniques to improve the accuracy of measurement devices.

工程师使用磁偏转技术来提高测量设备的准确性。

作文

The concept of magnetic deflection refers to the phenomenon where a charged particle, such as an electron, is influenced by a magnetic field and changes its trajectory. This principle is fundamental in various fields of physics and engineering, particularly in the design of devices like cathode ray tubes, mass spectrometers, and particle accelerators. Understanding magnetic deflection is crucial for anyone interested in electromagnetism and its applications.When a charged particle moves through a magnetic field, it experiences a force known as the Lorentz force, which acts perpendicular to both the velocity of the particle and the direction of the magnetic field. This interaction causes the particle to follow a curved path rather than a straight line. The degree of magnetic deflection is determined by several factors, including the strength of the magnetic field, the charge and mass of the particle, and its initial velocity.In practical applications, magnetic deflection plays a vital role in many technologies. For instance, in cathode ray tube (CRT) displays, which were widely used in televisions and computer monitors before the advent of flat-screen technology, electrons are emitted from a cathode and directed towards a phosphorescent screen. By applying varying magnetic fields, the path of the electrons can be altered, allowing them to strike different points on the screen and create images. The manipulation of the electron beam through magnetic deflection is what enables the display of dynamic visuals.Another significant application of magnetic deflection is in mass spectrometry, a technique used to analyze the composition of substances. In this process, ions are generated from the sample and then accelerated through an electric field into a magnetic field. The magnetic deflection of these ions allows scientists to determine their mass-to-charge ratio, providing valuable information about the molecular structure and composition of the sample. This technique is widely used in chemistry, biochemistry, and environmental science to identify unknown compounds and quantify specific substances.Furthermore, in particle accelerators, magnetic deflection is employed to steer and focus beams of charged particles, such as protons or heavy ions, at high speeds. These accelerators are essential for conducting fundamental research in particle physics, helping scientists explore the building blocks of matter and the forces that govern their interactions. By controlling the magnetic deflection of particle beams, researchers can increase collision rates and study rare phenomena that occur at subatomic levels.In conclusion, magnetic deflection is a key concept in understanding the behavior of charged particles in magnetic fields. Its applications span across multiple disciplines, from electronics to analytical chemistry and high-energy physics. By mastering this concept, students and professionals alike can gain deeper insights into the workings of various technologies and the fundamental principles of nature. As we continue to advance in science and technology, the significance of magnetic deflection will undoubtedly remain a critical area of study and innovation.

“磁偏转”这一概念指的是带电粒子（如电子）受到磁场影响而改变其轨迹的现象。这个原理在物理学和工程学的多个领域中都是基础，尤其是在阴极射线管、质谱仪和粒子加速器等设备的设计中。理解“磁偏转”对于任何对电磁学及其应用感兴趣的人来说都至关重要。当带电粒子穿过磁场时，它会经历一种被称为洛伦兹力的作用，这种作用与粒子的速度和磁场方向都垂直。这种相互作用使得粒子沿着弯曲的路径而不是直线运动。“磁偏转”的程度由多个因素决定，包括磁场的强度、粒子的电荷和质量以及其初始速度。在实际应用中，“磁偏转”在许多技术中发挥着重要作用。例如，在阴极射线管（CRT）显示器中，这种显示器在平面屏幕技术出现之前广泛用于电视和计算机显示器，电子从阴极发射并被引导到荧光屏上。通过施加不同的磁场，可以改变电子的路径，使其能够打击屏幕上的不同点，从而创建图像。通过“磁偏转”操控电子束的过程使动态视觉的显示成为可能。“磁偏转”的另一个重要应用是在质谱法中，这是一种用于分析物质成分的技术。在这个过程中，从样品中生成离子，然后通过电场加速进入磁场。这些离子的“磁偏转”使科学家能够确定它们的质荷比，从而提供有关样品的分子结构和组成的宝贵信息。这项技术在化学、生物化学和环境科学中被广泛应用，用于识别未知化合物和定量特定物质。此外，在粒子加速器中，“磁偏转”被用于引导和聚焦高速带电粒子（如质子或重离子）的束流。这些加速器对于进行粒子物理学的基础研究至关重要，帮助科学家探索物质的基本构成和支配其相互作用的力量。通过控制粒子束的“磁偏转”，研究人员可以提高碰撞率并研究在亚原子层面发生的稀有现象。总之，“磁偏转”是理解带电粒子在磁场中行为的关键概念。它的应用跨越多个学科，从电子学到分析化学和高能物理学。掌握这一概念，学生和专业人士都能更深入地了解各种技术的工作原理及自然的基本原理。随着我们在科学和技术上的不断进步，“磁偏转”的重要性无疑将继续成为研究和创新的关键领域。