faraday cage

简明释义

法拉第笼

英英释义

例句

1.The engineers designed a faraday cage for the new prototype to prevent signal leakage.

工程师为新原型设计了一个法拉第笼，以防止信号泄漏。

2.The scientist placed the sensitive equipment inside a faraday cage to protect it from electromagnetic interference.

科学家将敏感设备放置在一个法拉第笼内，以保护其免受电磁干扰。

3.During the thunderstorm, we stayed in a faraday cage to ensure our safety from lightning strikes.

在雷暴期间，我们待在一个法拉第笼内，以确保我们免受雷击的安全。

4.In the lab, all experiments involving sensitive data were conducted within a faraday cage.

在实验室中，所有涉及敏感数据的实验都在法拉第笼内进行。

5.To test the equipment's durability, it was subjected to conditions inside a faraday cage.

为了测试设备的耐用性，它被置于一个法拉第笼内进行条件测试。

作文

A Faraday cage is a fascinating concept in the field of electromagnetism, named after the English scientist Michael Faraday who invented it in the 19th century. Essentially, a Faraday cage is an enclosure made from conductive materials that blocks external electric fields and electromagnetic radiation. This phenomenon occurs because the conductive material redistributes electric charges on its surface when exposed to an external electric field, effectively canceling the field's effect inside the enclosure.The practical applications of a Faraday cage are numerous and varied. For instance, it is commonly used in laboratories to protect sensitive electronic equipment from external electromagnetic interference (EMI). By placing delicate instruments inside a Faraday cage, researchers can ensure that their measurements are accurate and not affected by stray electrical signals. This is particularly important in fields like telecommunications and scientific research where precision is paramount.Moreover, Faraday cages are also employed in everyday life, often without people realizing it. For example, a microwave oven is essentially a Faraday cage. The metal mesh in the door prevents microwaves from escaping while still allowing you to see inside. This design ensures that the microwaves used for cooking food do not leak out and cause harm to users, illustrating a practical application of this scientific principle.In addition to protecting electronic devices, Faraday cages can also provide safety against lightning strikes. Buildings can be equipped with a Faraday cage system that channels the electrical charge from a lightning strike safely into the ground, preventing damage to the structure and ensuring the safety of its occupants. This is critical in areas prone to thunderstorms, highlighting the importance of understanding and utilizing this technology.However, it is essential to note that a Faraday cage does not block all types of waves. While it is effective against electric fields and certain electromagnetic waves, it may not provide complete protection against low-frequency magnetic fields. This limitation is an important consideration for engineers and scientists when designing systems that require electromagnetic shielding.Furthermore, with the rise of wireless technology and mobile communications, the relevance of Faraday cages has been brought into new contexts. For instance, some individuals have begun using personal Faraday cages in the form of bags or pouches to protect their credit cards and smartphones from unauthorized scanning or hacking. These protective measures reflect a growing awareness of privacy and security in the digital age.In conclusion, the Faraday cage is a remarkable invention that showcases the principles of electromagnetism and its practical applications in modern society. From safeguarding sensitive electronic devices to protecting buildings from lightning, the utility of a Faraday cage is evident across various domains. As technology continues to evolve, the significance of understanding and implementing Faraday cages will likely grow, further enhancing our ability to protect ourselves and our devices from unwanted electromagnetic interference.

法拉第笼是电磁学领域中的一个迷人概念，得名于19世纪的英国科学家迈克尔·法拉第。基本上，法拉第笼是一种由导电材料制成的围栏，可以阻挡外部电场和电磁辐射。这种现象发生的原因是，当导电材料暴露在外部电场中时，会重新分布其表面的电荷，从而有效地抵消笼内电场的影响。法拉第笼的实际应用非常广泛。例如，它通常用于实验室，以保护敏感的电子设备免受外部电磁干扰（EMI）。通过将精密仪器放置在法拉第笼内，研究人员可以确保他们的测量是准确的，不受杂散电信号的影响。这在电信和科学研究等需要高精度的领域尤为重要。此外，法拉第笼也在日常生活中被使用，很多时候人们并没有意识到。例如，微波炉本质上就是一个法拉第笼。门上的金属网防止微波泄漏，同时仍然允许你看到内部。这种设计确保了用于加热食物的微波不会泄漏出来，对用户造成伤害，体现了这一科学原理的实际应用。除了保护电子设备，法拉第笼还可以提供防雷击的安全保障。建筑物可以配备法拉第笼系统，将雷击的电荷安全地引入地下，防止对结构造成损害，并确保居住者的安全。这在雷暴频发的地区至关重要，突显了理解和利用这一技术的重要性。然而，需要注意的是，法拉第笼并不能阻挡所有类型的波。虽然它对电场和某些电磁波有效，但可能无法完全保护低频磁场。这一局限性是工程师和科学家在设计需要电磁屏蔽的系统时必须考虑的重要因素。此外，随着无线技术和移动通信的兴起，法拉第笼的相关性也被引入新的背景。例如，一些个人开始使用个人法拉第笼，采用包或袋的形式，以保护他们的信用卡和智能手机免受未经授权的扫描或黑客攻击。这些保护措施反映了在数字时代对隐私和安全的日益关注。总之，法拉第笼是一项杰出的发明，展示了电磁学原理及其在现代社会中的实际应用。从保护敏感电子设备到防雷，法拉第笼的实用性在各个领域都显而易见。随着技术的不断发展，理解和实施法拉第笼的重要性可能会进一步增强，从而提高我们保护自己和设备免受不必要的电磁干扰的能力。