photoelectric cell

简明释义

光电池

英英释义

例句

1.The security system employs a photoelectric cell to detect movement in the dark.

安保系统使用光电池来检测黑暗中的运动。

2.In this experiment, we will measure the voltage produced by a photoelectric cell when exposed to different light intensities.

在这个实验中，我们将测量当暴露于不同光强下时，光电池产生的电压。

3.A photoelectric cell is often used in automatic lighting systems to turn on lights at dusk.

光电池通常用于自动照明系统，在黄昏时开启灯光。

4.Many modern calculators use a small photoelectric cell to power the device with ambient light.

许多现代计算器使用小型光电池通过环境光为设备供电。

5.The solar panel uses a photoelectric cell to convert sunlight into electricity.

太阳能电池板使用光电池将阳光转化为电能。

作文

In the modern world, technology plays a crucial role in our daily lives. One of the fascinating inventions that have significantly impacted various fields is the photoelectric cell. A photoelectric cell (光电池) is a device that converts light energy into electrical energy. This process is known as the photoelectric effect, which was first observed by Heinrich Hertz in the late 19th century. The principle behind the photoelectric cell is based on the ability of certain materials to emit electrons when exposed to light. The applications of photoelectric cells are vast and varied. They are commonly used in solar panels, which harness sunlight to generate electricity. Solar energy is one of the most sustainable and environmentally friendly sources of power available today. By utilizing photoelectric cells, we can reduce our reliance on fossil fuels and decrease greenhouse gas emissions, contributing to a healthier planet. Another significant application of photoelectric cells can be found in photography. Light meters, which help photographers determine the correct exposure settings, often rely on these devices. By measuring the intensity of light, photoelectric cells provide accurate readings, ensuring that photographs are neither overexposed nor underexposed. This technology has revolutionized the art of photography, allowing for more creativity and precision in capturing images. Furthermore, photoelectric cells are widely used in various electronic devices, such as automatic lighting systems. These systems utilize photoelectric cells to detect ambient light levels and adjust accordingly. For example, streetlights equipped with photoelectric cells will turn on automatically at dusk and off at dawn, conserving energy and enhancing safety in public spaces. In the field of science, photoelectric cells are essential components in experiments and research. They are used in photodetectors, which measure light intensity and are critical in various scientific applications, including spectroscopy and quantum mechanics. The ability to convert light into electrical signals allows scientists to gather data and conduct experiments with precision. Despite their numerous advantages, photoelectric cells also face challenges. The efficiency of photoelectric cells can be affected by factors such as temperature, angle of light incidence, and the quality of materials used. Researchers are continually working to improve the performance of these devices, developing new materials and technologies to enhance their efficiency and durability. In conclusion, the photoelectric cell (光电池) is a remarkable invention that has transformed many aspects of our lives. From solar energy generation to advancements in photography and scientific research, the impact of photoelectric cells is undeniable. As technology continues to evolve, it is essential to recognize the significance of these devices and their potential to shape a more sustainable future. By investing in research and development, we can further harness the power of the photoelectric cell and unlock new possibilities for innovation and progress.

在现代世界中，科技在我们的日常生活中扮演着至关重要的角色。一个对各个领域产生重大影响的迷人发明是光电池。光电池是一种将光能转换为电能的设备。这一过程被称为光电效应，最早由海因里希·赫兹在19世纪末观察到。光电池的原理基于某些材料在光照射下能够发射电子的能力。光电池的应用广泛而多样。它们通常用于太阳能电池板，这些电池板利用阳光发电。太阳能是当今可持续和环保的能源来源之一。通过利用光电池，我们可以减少对化石燃料的依赖，降低温室气体排放，为地球的健康做出贡献。光电池的另一个重要应用可以在摄影中找到。光度计，帮助摄影师确定正确曝光设置的设备，通常依赖于这些设备。通过测量光的强度，光电池提供准确的读数，确保照片既不过曝也不欠曝。这项技术彻底改变了摄影艺术，使捕捉图像时更具创造性和精确性。此外，光电池在各种电子设备中广泛应用，例如自动照明系统。这些系统利用光电池来检测环境光水平并相应调整。例如，配备有光电池的街灯将在黄昏时自动开启，在黎明时关闭，从而节省能源并增强公共空间的安全性。在科学领域，光电池是实验和研究中的重要组成部分。它们用于光电探测器，测量光强度，在包括光谱学和量子力学在内的各种科学应用中至关重要。将光转换为电信号的能力使科学家能够精确地收集数据和进行实验。尽管有许多优点，光电池也面临挑战。光电池的效率可能会受到温度、光入射角和所用材料质量等因素的影响。研究人员不断努力提高这些设备的性能，开发新材料和技术以增强其效率和耐用性。总之，光电池是一个了不起的发明，已经改变了我们生活的许多方面。从太阳能发电到摄影和科学研究的进步，光电池的影响不可否认。随着科技的不断发展，认识到这些设备的重要性及其塑造更可持续未来的潜力至关重要。通过投资于研究和开发，我们可以进一步利用光电池的力量，解锁创新和进步的新可能性。