vacuum tube voltmeter

简明释义

电子管伏特计

英英释义

例句

1.During the experiment, the vacuum tube voltmeter displayed a steady voltage reading.

在实验过程中，真空管电压表显示出稳定的电压读数。

2.In the lab, we relied on a vacuum tube voltmeter for accurate voltage readings.

在实验室中，我们依靠真空管电压表来获得准确的电压读数。

3.To troubleshoot the amplifier, I connected a vacuum tube voltmeter to check the output voltage.

为了排除放大器的故障，我连接了一个真空管电压表来检查输出电压。

4.The vacuum tube voltmeter is known for its high input impedance, making it ideal for sensitive measurements.

由于其高输入阻抗，真空管电压表非常适合进行敏感测量。

5.The engineer used a vacuum tube voltmeter to measure the voltage across the circuit components.

工程师使用真空管电压表测量电路元件之间的电压。

作文

The invention of the vacuum tube voltmeter has significantly impacted the field of electronics and electrical engineering. A vacuum tube voltmeter (真空管电压表) is an instrument used to measure voltage in a circuit, utilizing the properties of vacuum tubes. Unlike modern digital voltmeters, which rely on semiconductor technology, the vacuum tube voltmeter operates on the principle of electron flow in a vacuum environment, making it a unique tool in the realm of measurement devices. The basic construction of a vacuum tube voltmeter includes a glass envelope containing a vacuum tube, which houses electrodes that facilitate the flow of electrons. When a voltage is applied, the electrons are emitted from the cathode and travel towards the anode, creating a current that can be measured. This interaction allows for precise voltage readings, especially in high-frequency applications where other types of voltmeters may struggle. One of the key advantages of using a vacuum tube voltmeter is its ability to provide accurate measurements in circuits that operate at high frequencies. Traditional analog voltmeters often have limitations when it comes to measuring alternating current (AC) signals at higher frequencies. However, the vacuum tube voltmeter excels in these scenarios due to its design, which minimizes loading effects and preserves the integrity of the signal being measured. In addition to its technical advantages, the vacuum tube voltmeter also holds historical significance. During the mid-20th century, when vacuum tubes were widely used in various electronic devices, the vacuum tube voltmeter became a standard tool for engineers and technicians. Its reliability and precision made it an essential instrument for troubleshooting and testing electrical systems. As technology evolved, however, the use of vacuum tubes diminished with the advent of transistors and integrated circuits, leading to the rise of digital voltmeters and other modern measurement tools. Despite the decline in popularity, there remains a niche community of enthusiasts and professionals who appreciate the characteristics of the vacuum tube voltmeter. Some audio engineers, for instance, prefer the warmth and richness of sound produced by vacuum tube amplifiers. They often use vacuum tube voltmeters to ensure their equipment operates within optimal voltage ranges, thus enhancing the overall audio quality. In conclusion, the vacuum tube voltmeter is more than just a measuring device; it represents a pivotal moment in the evolution of electrical measurement technology. While it may not be as common in contemporary applications, its legacy continues to influence modern practices. Understanding the principles behind the vacuum tube voltmeter provides valuable insights into the history and development of electronic instrumentation. As we move forward in the field of electronics, it is important to recognize and appreciate the contributions of earlier technologies, such as the vacuum tube voltmeter, that laid the groundwork for today's innovations.

真空管电压表的发明对电子学和电气工程领域产生了重大影响。vacuum tube voltmeter（真空管电压表）是一种用于测量电路中电压的仪器，它利用真空管的特性。与现代数字电压表依赖半导体技术不同，vacuum tube voltmeter的工作原理是电子在真空环境中的流动，使其成为测量设备领域中的一种独特工具。vacuum tube voltmeter的基本结构包括一个包含真空管的玻璃外壳，真空管内部有电极可以促进电子的流动。当施加电压时，电子从阴极发射并朝向阳极移动，形成可测量的电流。这种相互作用使得电压读数非常精确，尤其是在其他类型电压表可能会遇到困难的高频应用中。使用vacuum tube voltmeter的一个主要优点是它能够在高频电路中提供准确的测量。传统的模拟电压表在测量高频交流信号时往往存在局限性。然而，vacuum tube voltmeter在这些情况下表现出色，因为其设计最小化了负载效应，并保持了被测信号的完整性。除了技术优势，vacuum tube voltmeter还具有历史意义。在20世纪中叶，当真空管广泛用于各种电子设备时，vacuum tube voltmeter成为工程师和技术人员的标准工具。其可靠性和精确度使其成为故障排除和测试电气系统的必要仪器。然而，随着技术的发展，真空管的使用减少，晶体管和集成电路的出现导致数字电压表和其他现代测量工具的兴起。尽管受欢迎程度下降，但仍然有一小部分爱好者和专业人员欣赏vacuum tube voltmeter的特性。例如，一些音频工程师更喜欢真空管放大器所产生的温暖和丰富的声音。他们常常使用vacuum tube voltmeter来确保其设备在最佳电压范围内工作，从而增强整体音质。总之，vacuum tube voltmeter不仅仅是一种测量设备；它代表了电气测量技术发展的关键时刻。虽然在当代应用中可能不那么常见，但其遗产仍然继续影响现代实践。理解vacuum tube voltmeter背后的原理为我们提供了关于电子仪器历史和发展的宝贵见解。随着我们在电子领域的不断前进，重要的是要认识到并欣赏早期技术（如vacuum tube voltmeter）对今天创新奠定基础的贡献。