discharge tube

简明释义

放电管

英英释义

例句

1.The discharge tube is essential for experiments involving gas ionization.

放电管对于涉及气体电离的实验至关重要。

2.A neon sign uses a discharge tube filled with neon gas to produce its bright colors.

霓虹灯使用充满氖气的放电管来产生其明亮的颜色。

3.The scientist carefully inserted the gas into the discharge tube to observe the reaction.

科学家小心翼翼地将气体插入放电管以观察反应。

4.When the voltage was increased, the glow inside the discharge tube became more intense.

当电压提高时，放电管内部的光芒变得更加明亮。

5.In physics class, we learned how a discharge tube can demonstrate the properties of electric currents.

在物理课上，我们学习了如何使用放电管展示电流的特性。

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 phenomena in a vacuum. When a high voltage is applied across the electrodes within the discharge tube, it allows electricity to flow through the gas or vapor inside, resulting in various fascinating effects such as light emission and the formation of plasma. Understanding how a discharge tube operates can provide insights into the principles of atomic structure and the behavior of electrons.The historical significance of the discharge tube cannot be understated. In the late 19th century, scientists like J.J. Thomson used discharge tubes to discover the electron. By observing the behavior of cathode rays in these tubes, he was able to conclude that they were composed of negatively charged particles, which we now know as electrons. This discovery revolutionized the field of physics and laid the groundwork for modern atomic theory.In practical applications, discharge tubes are used in various technologies, including fluorescent lights, neon signs, and even in some types of televisions. In fluorescent lighting, for example, a small amount of mercury vapor is contained within a discharge tube. When electricity passes through the tube, it excites the mercury atoms, causing them to emit ultraviolet light. This ultraviolet light then interacts with the phosphor coating on the inside of the tube, producing visible light. This process showcases the utility of discharge tubes in everyday life.Moreover, discharge tubes can also be utilized in scientific experiments to explore the properties of gases at low pressures. By adjusting the pressure inside the tube and observing the resultant changes in the behavior of the gas, researchers can gain valuable information about molecular interactions and ionization processes. This experimentation is crucial in fields such as chemistry and materials science, where understanding the behavior of substances at a molecular level is essential.However, working with discharge tubes requires caution. The high voltages involved can pose safety risks, and the gases used can sometimes be hazardous. It is important for students and professionals alike to follow safety protocols when conducting experiments involving discharge tubes. Proper training and protective equipment can help mitigate these risks.In conclusion, the discharge tube is more than just a simple piece of laboratory equipment; it is a gateway to understanding fundamental principles of physics and chemistry. Its applications range from illuminating our homes to advancing scientific research. As technology continues to evolve, the role of discharge tubes may expand further, leading to new innovations and discoveries. Therefore, grasping the concept and functionality of a discharge tube is essential for anyone interested in the sciences, as it embodies the intersection of theory and practical application in the world of electricity and matter.

“放电管”的概念在物理学和电气工程领域中是基础的。“放电管”是一个密封的玻璃或金属管，内部空气被抽走，使得可以在真空中研究电现象。当在“放电管”内的电极之间施加高电压时，可以使电流通过管内的气体或蒸气，从而产生各种迷人的效果，如发光和等离子体的形成。理解“放电管”的工作原理可以为我们提供关于原子结构和电子行为的深刻见解。“放电管”的历史意义不可低估。在19世纪末，像J.J.汤姆森这样的科学家使用“放电管”发现了电子。通过观察阴极射线在这些管中的行为，他能够得出结论，认为它们由带负电的粒子组成，我们现在称之为电子。这一发现彻底改变了物理学领域，并为现代原子理论奠定了基础。在实际应用中，“放电管”被用于各种技术，包括荧光灯、霓虹灯，甚至某些类型的电视机。例如，在荧光照明中，一小部分汞蒸气被封装在“放电管”内。当电流通过管道时，它激发汞原子，导致它们发出紫外光。这种紫外光随后与涂在管内的磷光材料相互作用，产生可见光。这一过程展示了“放电管”在日常生活中的实用性。此外，“放电管”还可以用于科学实验，以探索低压下气体的特性。通过调整管内的压力并观察气体行为的变化，研究人员可以获得关于分子相互作用和电离过程的宝贵信息。这种实验对于化学和材料科学等领域至关重要，因为理解物质在分子水平上的行为是必不可少的。然而，使用“放电管”需要谨慎。所涉及的高电压可能带来安全风险，所使用的气体有时可能是危险的。因此，对于学生和专业人士来说，在进行涉及“放电管”的实验时遵循安全协议非常重要。适当的培训和防护设备可以帮助减轻这些风险。总之，“放电管”不仅仅是一个简单的实验室设备；它是理解物理和化学基本原理的一个入口。它的应用范围从照亮我们的家到推动科学研究。随着技术的不断发展，“放电管”的角色可能会进一步扩展，导致新的创新和发现。因此，掌握“放电管”的概念和功能对于任何对科学感兴趣的人来说都是至关重要的，因为它体现了电力与物质世界中理论与实际应用的交汇。