electromagnetic noise

简明释义

电磁噪声

英英释义

例句

1.Smartphones often pick up electromagnetic noise 电磁噪声 when they are near other electronic devices.

智能手机在靠近其他电子设备时经常会接收到电磁噪声。

2.Engineers are working on ways to reduce electromagnetic noise 电磁噪声 in sensitive electronic equipment.

工程师们正在研究减少敏感电子设备中电磁噪声的方法。

3.The radio signal was distorted due to excessive electromagnetic noise 电磁噪声 from nearby power lines.

由于附近电力线的过量电磁噪声，无线电信号失真。

4.To improve signal quality, we need to eliminate sources of electromagnetic noise 电磁噪声 in the area.

为了提高信号质量，我们需要消除该地区的电磁噪声源。

5.The laboratory tests showed that the electromagnetic noise 电磁噪声 interfered with the accuracy of the measurements.

实验室测试表明，电磁噪声干扰了测量的准确性。

作文

In today's technologically advanced world, we are surrounded by various forms of energy and signals that enable our devices to function. However, one often overlooked aspect of this environment is electromagnetic noise, which can significantly impact the performance of electronic systems. Understanding electromagnetic noise is crucial for engineers and scientists as it plays a vital role in communication systems, electronic devices, and even medical equipment.Electromagnetic noise refers to the unwanted electromagnetic signals that interfere with the normal operation of electronic devices. These signals can originate from various sources, including natural phenomena like lightning or man-made sources such as power lines, motors, and radio transmitters. The presence of electromagnetic noise can lead to a degradation in signal quality, resulting in errors or loss of information in communication systems.One of the primary challenges posed by electromagnetic noise is its ability to disrupt wireless communications. For instance, when a mobile phone tries to connect to a network, it must filter out the background noise to maintain a clear connection. If the level of electromagnetic noise is too high, the phone may struggle to establish a reliable link, leading to dropped calls or slow data rates. This issue becomes even more pronounced in densely populated urban areas where numerous devices are operating simultaneously, generating a cacophony of electromagnetic noise.Moreover, electromagnetic noise can also affect sensitive electronic equipment used in scientific research and medical diagnostics. Instruments such as oscilloscopes and spectrometers require a clean signal to provide accurate measurements. Any interference from electromagnetic noise can result in incorrect readings, potentially compromising experiments or diagnoses. Therefore, researchers often employ shielding techniques or advanced filtering methods to minimize the impact of electromagnetic noise on their work.To mitigate the effects of electromagnetic noise, engineers have developed various strategies. One common approach is to use shielding materials that block unwanted signals from entering sensitive devices. These materials can be made from metals like copper or aluminum, which are effective at absorbing and reflecting electromagnetic noise. Additionally, circuit design techniques, such as differential signaling, can help reduce susceptibility to noise by ensuring that signals are less affected by external interference.Another important aspect of managing electromagnetic noise is regulatory measures. Governments and international organizations set standards for electromagnetic emissions to minimize interference between devices. For example, the Federal Communications Commission (FCC) in the United States regulates the amount of electromagnetic noise that can be emitted by electronic devices to ensure that they do not disrupt communication networks.In conclusion, electromagnetic noise is an ever-present challenge in our electronic world. Its ability to interfere with communication systems and sensitive equipment makes it a critical area of study for engineers and scientists alike. By understanding the sources and effects of electromagnetic noise, we can develop better technologies and strategies to mitigate its impact, ensuring that our devices operate smoothly and efficiently. As technology continues to advance, addressing electromagnetic noise will remain a key factor in the reliability and performance of electronic systems.

在当今技术高度发达的世界中，我们被各种形式的能量和信号所包围，这些能量和信号使我们的设备能够正常工作。然而，一个常常被忽视的方面是电磁噪声，它可以显著影响电子系统的性能。理解电磁噪声对工程师和科学家至关重要，因为它在通信系统、电子设备甚至医疗设备中发挥着重要作用。电磁噪声是指干扰电子设备正常操作的多余电磁信号。这些信号可以来自各种来源，包括自然现象（如闪电）或人造源（如电力线、电动机和无线电发射器）。电磁噪声的存在可能导致信号质量下降，从而导致通信系统中的错误或信息丢失。电磁噪声带来的主要挑战之一是它能够干扰无线通信。例如，当手机试图连接到网络时，它必须过滤掉背景噪声以保持清晰的连接。如果电磁噪声的水平过高，手机可能会难以建立可靠的链接，导致通话中断或数据速度缓慢。在人口稠密的城市地区，这一问题变得更加突出，因为众多设备同时运行，产生了大量的电磁噪声。此外，电磁噪声还可能影响用于科学研究和医疗诊断的敏感电子设备。示波器和光谱仪等仪器需要干净的信号才能提供准确的测量。任何来自电磁噪声的干扰都可能导致读数不正确，可能会影响实验或诊断。因此，研究人员通常采用屏蔽技术或先进的滤波方法，以最小化电磁噪声对其工作的影响。为了减轻电磁噪声的影响，工程师开发了各种策略。一种常见的方法是使用屏蔽材料，阻止多余信号进入敏感设备。这些材料可以由铜或铝等金属制成，这些金属有效地吸收和反射电磁噪声。此外，电路设计技术（如差分信号传输）可以通过确保信号不易受到外部干扰来帮助减少对噪声的敏感性。管理电磁噪声的另一个重要方面是监管措施。政府和国际组织设定电磁排放标准，以最小化设备之间的干扰。例如，美国联邦通信委员会（FCC）对电子设备可以发出的电磁噪声的数量进行监管，以确保它们不会干扰通信网络。总之，电磁噪声是我们电子世界中一个始终存在的挑战。它干扰通信系统和敏感设备的能力使其成为工程师和科学家研究的关键领域。通过理解电磁噪声的来源和影响，我们可以开发出更好的技术和策略来减轻其影响，确保我们的设备平稳高效地运行。随着技术的不断进步，解决电磁噪声的问题将继续是电子系统可靠性和性能的关键因素。