pentode

简明释义

英[ˈpentəʊd]美[ˈpentoʊd]

n. 五极真空管

英英释义

单词用法

同义词

反义词

例句

1.Tube pentode with directly or indirectly heated cathode.

具有直接或间接加热的阴极的电子管五极管。

2.Drag onto the page to add a tube pentode with directly or indirectly heated cathode.

拖到绘图页后，可以添加具有直热式或旁热式阴极的电子管五极管。

3.Drag onto the page to add a tube pentode with directly or indirectly heated cathode.

拖到绘图页后，可以添加具有直热式或旁热式阴极的电子管五极管。

4.Using a pentode in the circuit allows for greater voltage gain.

在电路中使用五极管可以实现更大的电压增益。

5.The audio amplifier uses a pentode to enhance sound quality.

这款音频放大器使用了一个五极管来提高音质。

6.The pentode was invented to improve the efficiency of vacuum tubes.

五极管的发明旨在提高真空管的效率。

7.Many vintage guitar amplifiers are designed with a pentode for richer tones.

许多复古吉他放大器采用五极管设计，以获得更丰富的音色。

8.In radio technology, a pentode can provide better performance than a triode.

在无线电技术中，五极管的性能优于三极管。

作文

The world of electronics has seen numerous innovations over the decades, and one of the most significant developments in vacuum tube technology is the invention of the pentode. A pentode is a type of vacuum tube that contains five active electrodes: the cathode, anode, and three grids. This design enhances the performance of the tube, making it ideal for various applications in amplifiers and radio transmitters. Understanding the function and significance of the pentode can provide valuable insights into both historical and modern electronic systems.To appreciate the pentode, we must first explore its predecessor, the triode. The triode, consisting of three electrodes, was revolutionary in its time, allowing for signal amplification. However, it had limitations, particularly concerning gain stability and frequency response. Engineers sought to overcome these challenges, leading to the development of the pentode. By adding additional grids, the pentode effectively improved the control over the flow of electrons between the cathode and anode. The result was a more stable amplification process with reduced distortion.One of the primary advantages of the pentode is its ability to provide high gain while maintaining a high degree of linearity. This characteristic is crucial for audio applications, where fidelity is paramount. In guitar amplifiers, for example, the pentode can produce rich, warm tones that are highly sought after by musicians. The unique sound produced by these tubes has led to a resurgence of interest in vintage equipment, as audiophiles and professionals alike seek to capture the essence of classic recordings.Another important application of the pentode is in radio frequency (RF) amplification. In RF applications, the pentode excels due to its ability to handle high frequencies with minimal distortion. This capability makes it a preferred choice for various communication devices, including transmitters and receivers. The pentode can amplify weak signals, ensuring clear communication even in challenging conditions.Despite the rise of solid-state technology, which has largely replaced vacuum tubes in many applications, the pentode still holds a special place in the hearts of enthusiasts. Its unique characteristics, such as warmth and richness of sound, cannot be easily replicated by transistors. Many high-end audio equipment manufacturers continue to incorporate pentodes into their designs, catering to those who appreciate the nuances of analog sound.In conclusion, the pentode represents a significant advancement in vacuum tube technology, offering enhanced performance and versatility compared to its predecessors. Its ability to provide high gain and low distortion makes it an essential component in various applications, from audio amplification to radio transmission. As technology continues to evolve, the pentode remains a testament to the enduring appeal of vacuum tube technology in an increasingly digital world. Understanding the pentode not only enriches our knowledge of electronics but also connects us to the rich history of innovation in this field.

电子世界在几十年间经历了许多创新，其中真空管技术中最重要的进展之一就是五极管的发明。五极管是一种包含五个活跃电极的真空管：阴极、阳极和三个栅极。这种设计增强了管子的性能，使其成为放大器和无线电发射器等各种应用的理想选择。理解五极管的功能和重要性，可以为我们提供关于历史和现代电子系统的宝贵见解。为了欣赏五极管，我们首先需要探讨它的前身——三极管。三极管由三个电极组成，在其时代是革命性的，允许信号放大。然而，它存在一些局限性，特别是在增益稳定性和频率响应方面。工程师们寻求克服这些挑战，从而开发出了五极管。通过增加额外的栅极，五极管有效地改善了阴极和阳极之间电子流动的控制。结果是一个更稳定的放大过程，失真减少。五极管的主要优点之一是它能够提供高增益，同时保持高线性度。这一特性对音频应用至关重要，因为保真度至关重要。例如，在吉他放大器中，五极管可以产生丰富、温暖的音色，这在音乐家中备受追捧。这些管子所产生的独特声音导致了对复古设备的重新关注，因为音响爱好者和专业人士都希望捕捉经典录音的本质。五极管的另一个重要应用是在射频（RF）放大中。在射频应用中，五极管由于能够以最小失真处理高频信号而表现出色。这种能力使其成为各种通信设备的首选，包括发射器和接收器。五极管能够放大微弱信号，确保在困难条件下也能清晰通信。尽管固态技术的崛起在许多应用中大大取代了真空管，但五极管仍然在爱好者心中占有特殊地位。它独特的特性，如音色的温暖和丰富，不能被晶体管轻易复制。许多高端音频设备制造商继续在他们的设计中融入五极管，迎合那些欣赏模拟声音细微差别的人。总之，五极管代表了真空管技术的重要进步，与其前身相比，提供了增强的性能和多功能性。它提供高增益和低失真的能力使其成为各种应用的基本组件，从音频放大到无线电传输。随着技术的不断发展，五极管依然是数字化世界中真空管技术持久魅力的证明。理解五极管不仅丰富了我们对电子学的知识，还将我们与这一领域创新的丰富历史联系起来。