filament voltage

简明释义

灯丝电压

英英释义

例句

1.The filament voltage must be calibrated properly to ensure accurate readings in the spectrometer.

必须正确校准灯丝电压以确保光谱仪的读数准确。

2.A higher filament voltage can increase the brightness of the light bulb but may reduce its lifespan.

较高的灯丝电压可以增加灯泡的亮度，但可能会缩短其使用寿命。

3.To prevent overheating, it's crucial to monitor the filament voltage during operation.

为了防止过热，在操作期间监控灯丝电压是至关重要的。

4.In CRT displays, the filament voltage is essential for generating the electron beam.

在CRT显示器中，灯丝电压对于产生电子束是必不可少的。

5.The technician adjusted the filament voltage to improve the image quality of the electron microscope.

技术员调整了灯丝电压以提高电子显微镜的图像质量。

作文

The concept of filament voltage is crucial in understanding how various electronic devices operate, especially those that involve incandescent bulbs and vacuum tubes. In simple terms, filament voltage refers to the electrical potential difference applied across the filament of a light bulb or a cathode in a vacuum tube. This voltage is responsible for heating the filament until it glows and emits light. The relationship between filament voltage and the resulting brightness of the light is direct; higher voltages typically result in brighter light output, while lower voltages yield dimmer illumination.To further elaborate, an incandescent bulb operates based on the principle of incandescence, where the filament is made of tungsten due to its high melting point and excellent conductivity. When the filament voltage is applied, the filament heats up to temperatures exceeding 2000 degrees Celsius, producing visible light. The efficiency of this process is not particularly high, as a significant portion of the energy is lost as heat rather than light. Therefore, understanding filament voltage is essential for optimizing the performance of incandescent lighting.In the realm of electronics, filament voltage also plays a vital role in the functioning of vacuum tubes, which were widely used before the advent of transistors. These tubes rely on a heated filament to emit electrons, a process known as thermionic emission. The filament voltage in this context determines the temperature of the filament and the number of electrons emitted into the vacuum. As the voltage increases, more electrons are released, enhancing the current flow through the tube. This principle was foundational in the development of early amplifiers and radios, showcasing the importance of filament voltage in electronic signal processing.Moreover, in modern applications, understanding filament voltage can help in troubleshooting and designing circuits. For instance, if a light bulb is not illuminating as expected, checking the filament voltage can provide insights into whether the bulb is receiving adequate power. In circuits where multiple bulbs are connected, ensuring each receives the correct filament voltage is critical for uniform brightness and preventing premature failure of the bulbs.In conclusion, filament voltage is a fundamental aspect of many electrical and electronic systems. Its influence on the operation of incandescent bulbs and vacuum tubes highlights its significance in both historical and contemporary contexts. Understanding how filament voltage affects performance allows engineers and technicians to create more efficient and reliable devices. As technology continues to evolve, the principles surrounding filament voltage will remain relevant, providing a bridge between traditional and modern lighting and electronic solutions.

“灯丝电压”这一概念对于理解各种电子设备的工作原理至关重要，尤其是那些涉及白炽灯泡和真空管的设备。简单来说，“灯丝电压”是指施加在灯泡灯丝或真空管阴极上的电位差。这个电压负责加热灯丝，直到它发光并发出光线。“灯丝电压”和随之而来的亮度之间的关系是直接的；较高的电压通常会导致更亮的光输出，而较低的电压则会产生较暗的照明。进一步阐述，白炽灯泡的工作基于白炽现象，其灯丝由钨制成，因为钨具有高熔点和优良的导电性。当施加“灯丝电压”时，灯丝的温度超过2000摄氏度，产生可见光。这个过程的效率并不特别高，因为大量的能量以热量而不是光的形式损失。因此，理解“灯丝电压”对优化白炽灯光源的性能至关重要。在电子学领域，“灯丝电压”在真空管的功能中也起着重要作用，这些真空管在晶体管出现之前广泛使用。这些管依赖加热的灯丝发射电子，这一过程称为热电子发射。在这种情况下，“灯丝电压”决定了灯丝的温度和发射到真空中的电子数量。随着电压的增加，释放的电子数量增加，从而增强了通过管道的电流。这一原理在早期放大器和收音机的发展中是基础，展示了“灯丝电压”在电子信号处理中的重要性。此外，在现代应用中，理解“灯丝电压”有助于故障排除和电路设计。例如，如果灯泡未按预期发光，检查“灯丝电压”可以提供关于灯泡是否获得足够电力的见解。在多个灯泡连接的电路中，确保每个灯泡接收到正确的“灯丝电压”对于均匀亮度和防止灯泡过早失效至关重要。总之，“灯丝电压”是许多电气和电子系统的基本方面。它对白炽灯泡和真空管的操作影响突显了其在历史和当代背景下的重要性。理解“灯丝电压”如何影响性能使工程师和技术人员能够创造出更高效、更可靠的设备。随着技术的不断发展，围绕“灯丝电压”的原则将继续保持相关性，为传统与现代照明和电子解决方案之间架起桥梁。