cathode dark space

简明释义

阴极暗区

英英释义

例句

1.The cathode dark space (阴极暗区) is crucial for understanding how cathode rays are generated.

理解阴极射线是如何产生的，cathode dark space（阴极暗区）是至关重要的。

2.The width of the cathode dark space (阴极暗区) can affect the efficiency of electronic devices.

阴极暗区cathode dark space（阴极暗区）的宽度可以影响电子设备的效率。

3.When analyzing the behavior of gas discharge tubes, the cathode dark space (阴极暗区) plays a significant role.

在分析气体放电管的行为时，cathode dark space（阴极暗区）起着重要作用。

4.In a vacuum tube, the electrons travel from the cathode to the anode, creating a region known as the cathode dark space (阴极暗区).

在真空管中，电子从阴极流向阳极，形成一个被称为cathode dark space（阴极暗区）的区域。

5.In fluorescent lamps, the cathode dark space (阴极暗区) is where ionization occurs before light emission.

在荧光灯中，cathode dark space（阴极暗区）是发光前发生电离的地方。

作文

In the study of physics and electrical engineering, various phenomena are often observed in vacuum tubes and gas discharge tubes. One such phenomenon is the formation of the cathode dark space, which plays a crucial role in understanding the behavior of electrons in these environments. The cathode dark space refers to a region near the cathode where there is a significant reduction in the density of charged particles, particularly electrons. This area is characterized by its low luminosity and is typically found in the vicinity of the cathode in a gas discharge tube. To comprehend the significance of the cathode dark space, it is essential to understand how cathodes function in electronic devices. When a cathode is heated, it emits electrons through a process known as thermionic emission. These emitted electrons are then attracted towards the anode, creating an electric current. However, as these electrons move away from the cathode, they encounter a region where their density decreases sharply—this is the cathode dark space. The presence of the cathode dark space can be attributed to several factors. Firstly, the emitted electrons collide with gas molecules in the tube, losing energy and scattering. This scattering leads to a depletion of free electrons in the immediate vicinity of the cathode, resulting in the formation of this dark space. Secondly, the electric field established between the cathode and anode influences the motion of electrons. As electrons move away from the cathode, they are repelled by the negative charge of the cathode itself, further contributing to the low density of electrons in the cathode dark space. Understanding the cathode dark space is vital for engineers and scientists working with vacuum tubes and gas discharge devices. For example, in cathode-ray tubes (CRTs), which were once widely used in television screens and computer monitors, the cathode dark space affects the efficiency and brightness of the display. By optimizing the design of the cathode and the surrounding environment, engineers can minimize the effects of the cathode dark space and enhance the performance of the device. Furthermore, the cathode dark space has implications in the field of plasma physics. In plasma devices, understanding the behavior of electrons and ions in the presence of a cathode dark space can lead to advancements in fusion research and other applications. Researchers are continually exploring ways to manipulate this space to improve the efficiency of plasma confinement and stability. In conclusion, the cathode dark space is a fundamental concept in the realm of electronics and plasma physics. Its understanding not only aids in the development of more efficient electronic devices but also contributes to the advancement of scientific research in various fields. As technology continues to evolve, the study of phenomena like the cathode dark space will remain essential for innovation and discovery.

在物理学和电气工程的研究中，真空管和气体放电管中经常观察到各种现象。其中一个现象是形成阴极暗区，它在理解这些环境中电子行为方面起着至关重要的作用。阴极暗区是指靠近阴极的区域，在该区域内带电粒子（特别是电子）的密度显著降低。这个区域的特点是低亮度，通常位于气体放电管的阴极附近。要理解阴极暗区的重要性，必须了解阴极在电子设备中的功能。当阴极被加热时，它通过称为热电子发射的过程释放电子。这些发射的电子随后被阳极吸引，产生电流。然而，当这些电子远离阴极移动时，它们会遇到一个电子密度急剧下降的区域——这就是阴极暗区。阴极暗区的存在可以归因于几个因素。首先，发射的电子与管内的气体分子碰撞，失去能量并散射。这种散射导致阴极附近自由电子的减少，从而形成这个暗区。其次，阴极和阳极之间建立的电场影响电子的运动。当电子远离阴极时，它们受到阴极本身的负电荷的排斥，进一步导致阴极暗区内电子的低密度。理解阴极暗区对于从事真空管和气体放电设备的工程师和科学家至关重要。例如，在阴极射线管（CRT）中，这曾是电视屏幕和计算机显示器广泛使用的技术，阴极暗区影响显示的效率和亮度。通过优化阴极及其周围环境的设计，工程师可以最小化阴极暗区的影响，提高设备的性能。此外，阴极暗区在等离子体物理领域也具有重要意义。在等离子体设备中，理解在阴极暗区存在下电子和离子的行为可以推动聚变研究和其他应用的发展。研究人员不断探索操控这一空间的方法，以提高等离子体的约束和稳定性。总之，阴极暗区是电子学和等离子体物理领域的基本概念。它的理解不仅有助于开发更高效的电子设备，还有助于推动各个领域科学研究的进展。随着技术的不断发展，对阴极暗区等现象的研究将继续对创新和发现至关重要。