anode-screening grid

简明释义

帘栅极

英英释义

例句

1.Engineers often optimize the anode-screening grid configuration for better linearity in amplifiers.

工程师通常优化阴极屏蔽网的配置，以提高放大器的线性度。

2.The design of the vacuum tube incorporates an anode-screening grid to improve efficiency.

真空管的设计包含一个阴极屏蔽网以提高效率。

3.The anode-screening grid acts as a barrier to limit the interaction between the anode and the cathode.

阴极屏蔽网充当一种屏障，以限制阳极与阴极之间的相互作用。

4.In high-frequency applications, the anode-screening grid plays a crucial role in reducing parasitic capacitance.

在高频应用中，阴极屏蔽网在减少寄生电容方面起着至关重要的作用。

5.Adjusting the voltage on the anode-screening grid can significantly affect the output signal.

调整阴极屏蔽网上的电压可以显著影响输出信号。

作文

In the field of electronics, particularly in the design of cathode-ray tubes (CRTs) and various types of vacuum tubes, the concept of an anode-screening grid is crucial for understanding how these devices function. The anode-screening grid serves as a critical component that helps manage electron flow within the tube. It is typically positioned between the cathode and the anode, playing a vital role in controlling the behavior of electrons as they travel from the cathode to the anode. This grid is designed to create a potential barrier that can influence the trajectory of the electrons, ensuring that they hit the anode efficiently and with the desired energy levels. The primary function of the anode-screening grid is to reduce the influence of the anode's electric field on the electrons emitted by the cathode. Without this grid, the electrons could be attracted too strongly to the anode, resulting in a loss of focus and increased scattering, which would degrade the performance of the device. By carefully adjusting the voltage applied to the anode-screening grid, engineers can fine-tune the electron flow, allowing for improved resolution and brightness in CRT displays.Moreover, the anode-screening grid also plays a significant role in preventing secondary electron emission. When high-energy electrons strike the anode, they can sometimes dislodge additional electrons from the surface of the anode. These secondary electrons can then travel back towards the cathode, creating a feedback loop that can destabilize the operation of the tube. The anode-screening grid helps to mitigate this issue by providing a physical barrier that keeps these secondary emissions in check, thus maintaining the integrity of the electron beam.In practical applications, the design of the anode-screening grid can vary widely depending on the specific requirements of the device it is being used in. For example, in television sets, where image quality is paramount, the grid must be designed to optimize both the speed and accuracy of electron targeting. In contrast, in industrial applications, where durability and reliability are more critical, the anode-screening grid may be constructed from more robust materials to withstand harsher operating conditions.Understanding the role of the anode-screening grid is essential for anyone studying electronics or engineering. It highlights the intricate balance that must be achieved in electronic design, where each component must work harmoniously to produce the desired outcome. Engineers must consider factors such as voltage levels, material properties, and the intended application when designing these grids. As technology continues to evolve, the principles underlying the anode-screening grid will remain relevant, influencing the development of new electronic devices and systems.In conclusion, the anode-screening grid is a fundamental element in the operation of various electronic devices, particularly in vacuum tubes and CRTs. Its ability to control electron flow and prevent unwanted emissions makes it indispensable for achieving optimal performance in these technologies. As we continue to innovate in the field of electronics, the significance of the anode-screening grid will undoubtedly persist, reminding us of the complex interplay between different components in electronic systems.

在电子学领域，特别是在阴极射线管（CRT）和各种类型的真空管的设计中，阳极屏蔽网格的概念对于理解这些设备的功能至关重要。阳极屏蔽网格作为一个关键组件，帮助管理管内的电子流。它通常位于阴极和阳极之间，在控制电子从阴极到阳极的行为方面发挥着重要作用。这个网格的设计是为了创建一个潜在的屏障，可以影响电子的轨迹，确保它们有效地且以所需的能量水平击中阳极。阳极屏蔽网格的主要功能是减少阳极电场对阴极发射的电子的影响。如果没有这个网格，电子可能会被阳极强烈吸引，从而导致失焦和散射增加，这将降低设备的性能。通过仔细调整施加在阳极屏蔽网格上的电压，工程师可以微调电子流，从而提高CRT显示器的分辨率和亮度。此外，阳极屏蔽网格在防止二次电子发射方面也发挥着重要作用。当高能电子撞击阳极时，它们有时会从阳极表面脱离出额外的电子。这些二次电子然后可以回向阴极，形成一个反馈循环，可能会使管子的操作不稳定。阳极屏蔽网格通过提供一个物理屏障来抑制这些二次发射，进而保持电子束的完整性。在实际应用中，阳极屏蔽网格的设计可以根据所使用设备的具体要求而有很大不同。例如，在电视机中，图像质量至关重要，因此网格必须设计得以优化电子瞄准的速度和准确性。相比之下，在工业应用中，耐用性和可靠性更为关键，阳极屏蔽网格可能由更坚固的材料制造，以承受更恶劣的工作条件。理解阳极屏蔽网格的作用对于任何学习电子学或工程学的人来说都是必不可少的。它突显了电子设计中必须实现的微妙平衡，每个组件都必须和谐地工作以产生所需的结果。工程师在设计这些网格时必须考虑电压水平、材料特性以及预期应用等因素。随着技术的不断发展，阳极屏蔽网格背后的原理将继续相关，影响新电子设备和系统的发展。总之，阳极屏蔽网格是各种电子设备操作中的基本元素，特别是在真空管和CRT中。它控制电子流和防止不必要的发射的能力使其在实现这些技术的最佳性能中不可或缺。随着我们在电子领域的不断创新，阳极屏蔽网格的重要性无疑将持续存在，提醒我们电子系统中不同组件之间复杂的相互作用。