discharge tube

简明释义

放电管

英英释义

例句

1.The discharge tube can be filled with different gases to observe their reactions.

放电管可以充填不同的气体以观察它们的反应。

2.He connected the discharge tube to a high-voltage power supply for his physics project.

他将放电管连接到高压电源上，用于他的物理项目。

3.In the experiment, the discharge tube emitted a bright glow when electricity passed through it.

在实验中，当电流通过时，放电管发出了明亮的光芒。

4.The discharge tube is essential for studying the behavior of ionized gases.

放电管对于研究电离气体的行为至关重要。

5.The scientist used a discharge tube to demonstrate the properties of gases under low pressure.

科学家使用了一个放电管来演示低压下气体的特性。

作文

The concept of a discharge tube is fundamental in the field of physics and electrical engineering. A discharge tube is a sealed glass or metal tube from which air has been removed, allowing for the study of electrical discharges in a vacuum. In essence, it serves as a medium through which electric currents can pass when a high voltage is applied. This fascinating device has paved the way for numerous discoveries and innovations in science and technology.One of the most notable applications of the discharge tube is in the demonstration of gas discharge phenomena. When a high voltage is applied across the electrodes within the discharge tube, the gas inside becomes ionized, leading to a flow of electricity. This process produces visible light, often in vibrant colors depending on the type of gas used. For instance, neon gas emits a bright red-orange glow, while argon produces a blue-violet light. These colorful displays are not only visually captivating but also serve as practical demonstrations of fundamental principles in physics, such as the behavior of gases under different conditions.The historical significance of the discharge tube cannot be understated. It was instrumental in the development of early electrical technologies. Scientists like J.J. Thomson utilized discharge tubes to discover the electron in the late 19th century. By observing the behavior of cathode rays within these tubes, he was able to deduce that they were composed of negatively charged particles, leading to a profound understanding of atomic structure.In addition to their role in scientific discovery, discharge tubes have practical applications in modern technology. They are used in various devices, including fluorescent lamps and neon signs. In fluorescent lamps, the discharge tube is filled with a low-pressure gas, and when electricity passes through it, it excites the gas atoms, producing ultraviolet light. This light then interacts with a phosphor coating on the inside of the tube, emitting visible light. Neon signs, on the other hand, use discharge tubes filled with neon gas to create striking advertisements that illuminate streets and buildings.Moreover, the study of discharge tubes has led to advancements in fields such as plasma physics and laser technology. Researchers explore how gases behave under extreme conditions within these tubes, contributing to our understanding of plasmas—ionized gases that have unique properties and applications, including in fusion energy research.In conclusion, the discharge tube is more than just a simple glass or metal tube; it is a gateway to understanding the intricate workings of electricity and matter. Its contributions to scientific knowledge and technological advancement are immense, influencing everything from the discovery of the electron to the development of modern lighting solutions. As we continue to explore the universe of physics, the discharge tube remains a vital tool for both education and innovation, reminding us of the beauty and complexity of the natural world.

“放电管”的概念在物理学和电气工程领域中是基础性的。“放电管”是一个密封的玻璃或金属管，内部空气被抽走，从而可以研究真空中的电气放电。本质上，它充当了一种介质，当施加高电压时，电流可以通过它流动。这个迷人的设备为科学和技术中的众多发现和创新铺平了道路。“放电管”的一个显著应用是在气体放电现象的演示中。当在“放电管”内的电极之间施加高电压时，内部的气体变得电离，导致电流的流动。这个过程产生可见的光，通常根据所使用的气体类型发出鲜艳的颜色。例如，氖气发出明亮的红橙色光，而氩气则产生蓝紫色的光。这些色彩斑斓的展示不仅在视觉上引人注目，而且还作为物理学基本原理的实际演示，例如气体在不同条件下的行为。“放电管”的历史意义不可低估。它在早期电气技术的发展中发挥了重要作用。像J.J.汤姆森这样的科学家利用“放电管”在19世纪末发现了电子。通过观察这些管中阴极射线的行为，他能够推断出它们由带负电的粒子组成，从而对原子结构有了深刻的理解。除了在科学发现中的作用外，“放电管”在现代技术中也具有实际应用。它们被用于各种设备，包括荧光灯和霓虹灯。在荧光灯中，“放电管”充满了低压气体，当电流通过时，它激发气体原子，产生紫外光。这种光随后与管内的磷光涂层相互作用，发出可见光。而霓虹灯则使用充满氖气的“放电管”，创造出耀眼的广告，照亮街道和建筑物。此外，对“放电管”的研究促进了等离子体物理学和激光技术等领域的进步。研究人员探索气体在这些管内极端条件下的行为，帮助我们理解等离子体——具有独特属性和应用的电离气体，包括在聚变能源研究中的应用。总之，“放电管”不仅仅是一个简单的玻璃或金属管；它是理解电力和物质复杂运作的门户。它对科学知识和技术进步的贡献巨大，影响着从电子的发现到现代照明解决方案的发展。随着我们继续探索物理宇宙，“放电管”仍然是教育和创新的重要工具，提醒我们自然世界的美丽和复杂性。