tetrode

简明释义

英[ˈtetrəʊd]美[ˈtetroʊd]

n. [电子] 四极管

英英释义

单词用法

同义词

反义词

例句

1.Reverse blocking tetrode thyristor; semiconductor controlled switch.

反向阻断四极型可控硅、半导体控制开关。

2.Tube tetrode with directly or indirectly heated cathode.

具有直接或间接加热的阴极的电子管四极管。

3.Technical improvement of making rotary tube furnace, tetrode reduction furnace in recent years is described.

介绍了近年来在制作回转管炉、四管还原炉的技术进步；

4.Technical improvement of making rotary tube furnace, tetrode reduction furnace in recent years is described.

介绍了近年来在制作回转管炉、四管还原炉的技术进步；

5.The tetrode was used in early television transmitters to enhance picture quality.

早期电视发射器中使用了四极管来增强画质。

6.When working with RF circuits, a tetrode can provide better performance than a triode.

在处理射频电路时，四极管可以提供比三极管更好的性能。

7.In vacuum tube technology, the tetrode is known for its ability to reduce distortion.

在真空管技术中，四极管因其降低失真的能力而著称。

8.The audio engineer preferred a tetrode amplifier for its warm sound characteristics.

音频工程师更喜欢使用四极管放大器，因为它具有温暖的音质特性。

9.The radio engineer designed a new amplifier using a tetrode to improve signal clarity.

无线电工程师设计了一种新的放大器，使用了一个四极管来改善信号清晰度。

作文

In the world of electronics and communication, various components play a crucial role in the functioning of devices. One such component is the tetrode, which is a type of vacuum tube that has four active electrodes. The tetrode was invented in the early 20th century and marked a significant advancement in electronic technology. It consists of a cathode, an anode, and two additional grids that help control the flow of electrons. This design allows for improved performance compared to earlier vacuum tubes, such as the triode, which only had three electrodes. The introduction of the tetrode brought about enhancements in amplification and oscillation capabilities, making it an essential component in radio transmitters and receivers.The operation of a tetrode is based on the principles of thermionic emission, where electrons are emitted from a heated cathode. These electrons are then attracted to the positively charged anode. The two grids in the tetrode serve different purposes; the control grid regulates the flow of electrons, while the screen grid helps reduce capacitance effects, allowing for higher frequencies and better stability in signal amplification. As a result, tetrodes became popular in various applications, including audio amplifiers, RF amplifiers, and even in some television sets during their early development.One of the key advantages of using a tetrode is its ability to provide high gain with low distortion. This characteristic makes it particularly valuable in audio applications, where sound fidelity is paramount. Additionally, the tetrode's design allows it to operate efficiently at high voltages, which is beneficial for certain types of power amplifiers. However, tetrodes are not without their challenges. For instance, they can experience a phenomenon known as 'screen grid modulation', which can lead to unwanted oscillations if not properly managed. Engineers have developed various techniques to mitigate these issues, ensuring that tetrodes can be used effectively in modern electronic circuits.Despite the rise of solid-state technology and transistors, the tetrode still holds a place in niche applications. Audiophiles often seek out tetrode amplifiers for their warm sound quality, which is attributed to the unique characteristics of vacuum tubes. Furthermore, radio enthusiasts appreciate tetrodes for their historical significance and performance in vintage equipment. The revival of interest in analog technology has led to a renewed appreciation for the tetrode and its contributions to the field of electronics.In conclusion, the tetrode is a remarkable invention that has significantly impacted the world of electronics. Its four-electrode design allows for superior performance in amplification and signal processing, making it a vital component in various applications. While modern technology has shifted towards solid-state devices, the legacy of the tetrode continues to influence audio and radio technologies today. Understanding the function and importance of the tetrode provides insight into the evolution of electronic components and their ongoing relevance in our technological landscape.

在电子和通信的世界中，各种组件在设备的运作中扮演着至关重要的角色。其中一个组件是四极管，这是一种具有四个活跃电极的真空管。四极管是在20世纪初发明的，标志着电子技术的一次重大进步。它由一个阴极、一个阳极和两个额外的网格组成，这些网格有助于控制电子的流动。这种设计相较于早期的真空管（如三极管）具有更好的性能，因为三极管只有三个电极。四极管的引入带来了放大和振荡能力的提升，使其成为无线电发射器和接收器中的重要组件。四极管的操作基于热电子发射原理，其中电子从加热的阴极发射出来。这些电子随后被正电荷的阳极吸引。四极管中的两个网格有不同的用途；控制网格调节电子流，而屏幕网格则帮助减少电容效应，从而允许更高频率和更好的信号放大稳定性。因此，四极管在各种应用中变得流行，包括音频放大器、射频放大器，甚至在某些早期电视机中。使用四极管的一个关键优势是它能提供高增益且失真低的特性。这一特性使其在音频应用中尤为有价值，因为音质至关重要。此外，四极管的设计使其能够在高电压下有效运行，这对某些类型的功率放大器是有利的。然而，四极管并非没有挑战。例如，它们可能会经历一种称为“屏幕网格调制”的现象，如果不加以妥善管理，可能导致不必要的振荡。工程师们已经开发出各种技术来缓解这些问题，确保四极管能够在现代电子电路中有效使用。尽管固态技术和晶体管的兴起，但四极管在小众应用中仍然占有一席之地。音响爱好者常常寻找四极管放大器，以获得其温暖的音质，这被归因于真空管的独特特性。此外，无线电爱好者欣赏四极管在复古设备中的历史意义和性能。对模拟技术的兴趣复兴使人们重新认识到四极管及其对电子领域的贡献。总之，四极管是一项了不起的发明，对电子世界产生了重大影响。其四电极设计使其在放大和信号处理方面具有卓越的性能，使其在各种应用中成为关键组件。虽然现代技术已转向固态设备，但四极管的遗产仍继续影响着今天的音频和无线电技术。理解四极管的功能和重要性，有助于我们深入了解电子组件的发展及其在我们技术领域中的持续相关性。