vacuum photocell

简明释义

真空光电管

英英释义

例句

1.For energy efficiency, we replaced the old sensor with a new vacuum photocell.

为了提高能效，我们用新的真空光电池替换了旧传感器。

2.We installed a vacuum photocell in the garden to ensure it lights up when the sun goes down.

我们在花园里安装了一个真空光电池，以确保在太阳落山时能自动亮起。

3.The streetlights automatically turn on at dusk thanks to the vacuum photocell.

得益于真空光电池，街灯会在黄昏时自动开启。

4.When the power goes out, the vacuum photocell can still operate on backup energy.

当电力中断时，真空光电池仍然可以使用备用能源运行。

5.The vacuum photocell is sensitive enough to detect even the slightest changes in light.

这个真空光电池足够敏感，可以检测到光线的微小变化。

作文

In today's world, technology plays a crucial role in enhancing our daily lives. One of the fascinating inventions that have significantly impacted various fields is the vacuum photocell. A vacuum photocell is a type of electronic device that utilizes the photoelectric effect to convert light into electrical energy. This technology is widely used in applications such as lighting control, solar energy systems, and even in some advanced scientific instruments.The principle behind a vacuum photocell is relatively straightforward. It consists of a sealed glass tube that contains a low-pressure gas or vacuum. Inside this tube, there are two electrodes. When light photons strike the surface of one of the electrodes, they excite the electrons, causing them to be emitted from the material. This process generates a flow of electricity, which can then be harnessed for various purposes.One of the most common uses of a vacuum photocell is in outdoor lighting systems. For instance, streetlights equipped with these devices can automatically turn on at dusk and off at dawn. This not only saves energy but also ensures that the lights are only operational when needed. The efficiency of a vacuum photocell in detecting ambient light levels makes it an ideal choice for such applications.Moreover, the use of vacuum photocells extends to solar energy systems. In these setups, the cells can be integrated into solar panels to optimize their performance. By detecting the intensity of sunlight, the vacuum photocell can help regulate the amount of energy being produced and stored, thereby improving the overall efficiency of the solar energy system.In addition to practical applications, vacuum photocells are also essential in scientific research. They are utilized in various experimental setups, including spectroscopy and photometry. These devices allow researchers to measure light intensity accurately, which is vital for understanding different physical phenomena.Despite their numerous advantages, there are some challenges associated with vacuum photocells. For instance, they can be sensitive to temperature changes and may require calibration to maintain accuracy. Additionally, the materials used in their construction can affect their longevity and performance. Therefore, ongoing research is focused on improving the design and materials used in vacuum photocells to enhance their reliability and efficiency.In conclusion, the vacuum photocell is a remarkable invention that has transformed the way we harness and utilize light. Its applications range from everyday lighting solutions to advanced scientific instruments, showcasing its versatility and importance in modern technology. As we continue to innovate and explore new ways to utilize energy, the vacuum photocell will undoubtedly play a pivotal role in shaping a more efficient and sustainable future.

在当今世界，技术在提升我们日常生活中扮演着至关重要的角色。一个令人着迷的发明是真空光电池，它对各个领域产生了显著影响。真空光电池是一种利用光电效应将光转化为电能的电子设备。这项技术广泛应用于照明控制、太阳能系统，甚至一些先进的科学仪器中。真空光电池的原理相对简单。它由一个密封的玻璃管组成，内部含有低压气体或真空。在这个管子里，有两个电极。当光子撞击其中一个电极的表面时，会激发电子，使其从材料中逸出。这个过程产生电流，可以被用来进行各种用途。真空光电池最常见的用途之一是在户外照明系统中。例如，配备这些设备的路灯可以在黄昏时自动开启，在黎明时关闭。这不仅节省了能源，还确保灯光仅在需要时运行。真空光电池在检测环境光水平方面的高效性使其成为此类应用的理想选择。此外，真空光电池的使用还扩展到太阳能系统。在这些设置中，光电池可以集成到太阳能电池板中，以优化其性能。通过检测阳光的强度，真空光电池可以帮助调节产生和储存的能量，从而提高太阳能系统的整体效率。除了实际应用，真空光电池在科学研究中也至关重要。它们被用于各种实验设置，包括光谱学和光度学。这些设备使研究人员能够准确测量光强度，这对于理解不同的物理现象至关重要。尽管有许多优点，但与真空光电池相关的一些挑战也存在。例如，它们可能对温度变化敏感，并且可能需要校准以保持准确性。此外，制造它们所用的材料可能会影响其耐久性和性能。因此，持续的研究集中在改善真空光电池的设计和材料上，以增强其可靠性和效率。总之，真空光电池是一项了不起的发明，改变了我们利用光的方式。它的应用范围从日常照明解决方案到先进的科学仪器，展示了其多功能性和在现代技术中的重要性。随着我们继续创新和探索利用能源的新方法，真空光电池无疑将在塑造一个更高效和可持续的未来中发挥关键作用。