thermionic valve transmitter

简明释义

热电子管发射机

英英释义

例句

1.During the 1920s, many radio stations upgraded to a thermionic valve transmitter 热阴极阀发射器 for better transmission quality.

在1920年代，许多广播电台升级到热阴极阀发射器以获得更好的传输质量。

2.The early radio broadcasts relied heavily on the thermionic valve transmitter 热阴极阀发射器 for signal amplification.

早期的广播依赖于热阴极阀发射器进行信号放大。

3.The invention of the thermionic valve transmitter 热阴极阀发射器 revolutionized the field of telecommunications.

热阴极阀发射器的发明彻底改变了电信领域。

4.Engineers often preferred the thermionic valve transmitter 热阴极阀发射器 due to its reliability in long-distance communication.

工程师们常常更喜欢热阴极阀发射器，因为它在长距离通信中的可靠性。

5.In vintage radio equipment, a thermionic valve transmitter 热阴极阀发射器 was essential for producing clear audio signals.

在复古无线电设备中，热阴极阀发射器对于产生清晰的音频信号至关重要。

作文

The invention of the thermionic valve transmitter marked a significant milestone in the history of electronics and communication technology. Before the advent of this device, long-distance communication was limited and often unreliable. The thermionic valve transmitter, also known as a vacuum tube transmitter, revolutionized the way information was transmitted over vast distances, making it possible to send clear signals across continents and oceans.At its core, a thermionic valve transmitter operates on the principle of thermionic emission, where electrons are emitted from a heated cathode and travel through a vacuum to an anode. This process allows for the amplification of electrical signals, which is crucial for transmitting radio waves. The ability to amplify weak signals meant that radio broadcasts could reach a much wider audience, paving the way for the development of modern broadcasting.The early 20th century saw the widespread adoption of the thermionic valve transmitter. Inventors and engineers quickly recognized its potential and began to experiment with different designs and applications. One notable figure in this field was John Ambrose Fleming, who invented the first practical thermionic valve transmitter in 1904, known as the vacuum tube. His invention laid the groundwork for future advancements in radio technology.As radio became more popular, the demand for reliable transmission methods grew. The thermionic valve transmitter played a crucial role in this evolution. It allowed for clearer sound quality and greater transmission distances, which were essential for both commercial and military communications. During World War I and World War II, these transmitters were vital for coordinating efforts and relaying important messages.However, the thermionic valve transmitter was not without its challenges. The devices were relatively bulky and consumed a significant amount of power. Additionally, they required regular maintenance and replacement, leading to operational difficulties. Despite these drawbacks, the advantages of the thermionic valve transmitter far outweighed the negatives, and it remained the standard for many years.With the advent of solid-state technology in the mid-20th century, the landscape of electronic communication began to change once again. Transistors emerged as a more efficient alternative to the thermionic valve transmitter. They were smaller, consumed less power, and were more reliable over time. As a result, the use of thermionic valves began to decline, and by the late 20th century, they were largely replaced by transistor-based technologies in most applications.Despite this shift, the legacy of the thermionic valve transmitter continues to influence modern communication systems. Many audio enthusiasts and professionals still appreciate the unique sound characteristics produced by vacuum tube amplifiers, which are derived from the principles of the thermionic valve transmitter. Furthermore, the fundamental concepts of signal amplification and modulation introduced by this technology remain integral to contemporary electronics.In conclusion, the thermionic valve transmitter was a groundbreaking invention that transformed the field of communication. Its ability to amplify signals and enable long-distance transmission laid the foundation for the modern communication systems we rely on today. Although technology has evolved, the impact of the thermionic valve transmitter is still felt, reminding us of the ingenuity and innovation that drove the development of electronic communication.

热电子阀发射器的发明标志着电子和通信技术历史上的一个重要里程碑。在这种设备出现之前，长距离通信受限且往往不可靠。热电子阀发射器，也称为真空管发射器，彻底改变了信息在广阔距离上发送的方式，使得跨越大陆和海洋发送清晰信号成为可能。热电子阀发射器的核心原理是热电子发射，即电子从加热的阴极中发射并通过真空传输到阳极。这个过程允许电信号的放大，这对于无线电波的传播至关重要。放大微弱信号的能力意味着无线广播可以覆盖更广泛的观众，为现代广播的发展铺平了道路。20世纪初，热电子阀发射器被广泛采用。发明家和工程师迅速认识到其潜力，并开始实验不同的设计和应用。约翰·安布罗斯·弗莱明是这一领域的一个著名人物，他于1904年发明了第一个实用的热电子阀发射器，称为真空管。他的发明为未来无线电技术的进步奠定了基础。随着无线电的普及，对可靠传输方法的需求不断增长。热电子阀发射器在这一演变中发挥了至关重要的作用。它允许更清晰的音质和更大的传输距离，这对商业和军事通信都是必不可少的。在第一次世界大战和第二次世界大战期间，这些发射器对协调努力和传递重要信息至关重要。然而，热电子阀发射器并非没有挑战。这些设备相对笨重，消耗大量电力。此外，它们需要定期维护和更换，导致操作困难。尽管存在这些缺点，热电子阀发射器的优势远远超过了负面影响，因此它在许多年里仍然是标准设备。随着20世纪中叶固态技术的出现，电子通信的格局再次发生变化。晶体管作为热电子阀发射器的更高效替代品出现。它们体积更小，功耗更低，长期使用更可靠。因此，热电子阀的使用开始下降，到20世纪末，在大多数应用中被基于晶体管的技术所取代。尽管发生了这种转变，热电子阀发射器的遗产仍然影响着现代通信系统。许多音频爱好者和专业人士仍然欣赏由真空管放大器产生的独特音质，这源于热电子阀发射器的原理。此外，该技术引入的信号放大和调制的基本概念仍然是当代电子学的重要组成部分。总之，热电子阀发射器是一项突破性的发明，改变了通信领域。其放大信号和实现长距离传输的能力为我们今天依赖的现代通信系统奠定了基础。尽管技术已经发展，但热电子阀发射器的影响仍然可感受到，提醒我们推动电子通信发展的创造力和创新精神。