cathode fall

简明释义

阴极电势降

英英释义

例句

1.Understanding the cathode fall helps improve the performance of plasma devices.

理解阴极降落有助于提高等离子体设备的性能。

2.Engineers must account for the cathode fall when designing high-voltage circuits.

工程师在设计高压电路时必须考虑阴极降落。

3.The measurement of the voltage drop across the cathode is crucial for understanding the cathode fall.

测量阴极上的电压降对于理解阴极降落至关重要。

4.In a vacuum tube, the cathode fall can affect the overall efficiency of the device.

在真空管中，阴极降落会影响设备的整体效率。

5.The cathode fall is often measured in electron volts to quantify energy loss.

阴极降落通常以电子伏特为单位来量化能量损失。

作文

In the field of physics and electrical engineering, the term cathode fall refers to the potential difference that exists between the cathode and the surrounding plasma in a discharge tube or vacuum tube. This phenomenon is crucial for understanding how electron flow occurs in various electronic devices. The cathode fall is significant because it affects the behavior of electrons as they are emitted from the cathode and travel through the surrounding medium. When a voltage is applied across a cathode, electrons are released from its surface into the surrounding space. However, these electrons do not immediately accelerate away; instead, they experience a potential barrier known as the cathode fall. This barrier results from the interaction between the emitted electrons and the positive ions present in the plasma. Understanding the cathode fall is essential for designing efficient electronic components, such as cathode ray tubes (CRTs) and gas discharge lamps. In CRTs, for instance, the cathode fall influences the brightness and clarity of the images produced on the screen. A lower cathode fall can lead to a more efficient electron beam, resulting in brighter images. Conversely, a high cathode fall can cause energy losses and reduce the overall performance of the device.Moreover, the cathode fall plays a vital role in various applications, including lighting technologies and plasma physics. In gas discharge lamps, the cathode fall helps determine the operating voltage and the efficiency of light production. A thorough understanding of this concept allows engineers to optimize the design of these lamps, ensuring better energy consumption and longer lifespans.In addition to practical applications, the cathode fall also has theoretical implications in plasma physics. Researchers study the cathode fall to gain insights into the behavior of plasmas in different conditions, which can lead to advancements in fusion research and space exploration technologies. By analyzing how the cathode fall varies with different parameters, scientists can develop models that predict plasma behavior under various circumstances.In conclusion, the concept of cathode fall is fundamental in the realm of electronics and plasma physics. It not only impacts the efficiency and performance of electronic devices but also serves as a key area of study for researchers seeking to understand the complexities of plasma behavior. As technology continues to evolve, the significance of the cathode fall will likely grow, leading to new innovations and improved designs in various fields. Understanding this phenomenon is essential for anyone involved in electrical engineering or related disciplines, as it lays the groundwork for further exploration and innovation in technology.

在物理和电气工程领域，术语阴极降落指的是放电管或真空管中阴极与周围等离子体之间存在的电位差。这一现象对于理解各种电子设备中的电子流动至关重要。阴极降落是重要的，因为它影响电子从阴极发射并穿过周围介质的行为。当施加电压到阴极时，电子会从其表面释放到周围空间。然而，这些电子并不会立即加速离开；相反，它们会经历一个称为阴极降落的电位障碍。这个障碍源于发射的电子与等离子体中存在的正离子之间的相互作用。理解阴极降落对于设计高效的电子元件至关重要，例如阴极射线管（CRT）和气体放电灯。在CRT中，阴极降落影响屏幕上图像的亮度和清晰度。较低的阴极降落可以导致更高效的电子束，从而产生更明亮的图像。相反，高阴极降落可能导致能量损失并降低设备的整体性能。此外，阴极降落在各种应用中也发挥着重要作用，包括照明技术和等离子体物理学。在气体放电灯中，阴极降落帮助确定工作电压和光产生的效率。对这一概念的透彻理解使工程师能够优化这些灯的设计，确保更好的能耗和更长的使用寿命。除了实际应用外，阴极降落在等离子体物理学中也具有理论意义。研究人员研究阴极降落以深入了解不同条件下等离子的行为，这可以推动聚变研究和太空探索技术的进步。通过分析阴极降落如何随不同参数变化，科学家可以开发预测不同情况下等离子体行为的模型。总之，阴极降落的概念在电子学和等离子体物理学领域是基础性的。它不仅影响电子设备的效率和性能，还作为研究者寻求理解等离子体行为复杂性的关键研究领域。随着技术的不断发展，阴极降落的重要性可能会增长，从而导致各个领域的新创新和改进设计。理解这一现象对于任何涉及电气工程或相关学科的人来说都是必不可少的，因为它为进一步探索和技术创新奠定了基础。