electrostatic shielding

简明释义

静电屏蔽

英英释义

例句

1.The electrostatic shielding 静电屏蔽 in the MRI machine prevents external electric fields from affecting the imaging process.

MRI机器中的静电屏蔽防止外部电场影响成像过程。

2.In a laboratory, scientists use metal enclosures to provide electrostatic shielding 静电屏蔽 for sensitive equipment.

在实验室中，科学家使用金属外壳为敏感设备提供静电屏蔽。

3.Engineers must consider electrostatic shielding 静电屏蔽 when designing circuits that will be exposed to high voltages.

工程师在设计将暴露于高电压的电路时必须考虑静电屏蔽。

4.To ensure accurate measurements, the voltmeter was placed inside a box with electrostatic shielding 静电屏蔽.

为了确保准确测量，电压表被放置在一个带有静电屏蔽的箱子里。

5.The design of the smartphone includes electrostatic shielding 静电屏蔽 to protect the internal circuits from interference.

智能手机的设计包括静电屏蔽以保护内部电路免受干扰。

作文

Electrostatic shielding is a fundamental concept in physics and engineering, particularly in the study of electric fields and charges. It refers to the method of protecting sensitive electronic equipment from external electric fields by using conductive materials. This phenomenon occurs when a conductor is placed in an electric field, causing the free electrons in the conductor to rearrange themselves. The movement of these electrons creates an induced electric field that opposes the external field, effectively canceling it out within the conductor. This principle is crucial in various applications, especially in the design of electronic devices, where interference from external electric fields can lead to malfunctions or degraded performance.One of the most common examples of electrostatic shielding (静电屏蔽) can be observed in the construction of cables used for transmitting signals. These cables often have a metallic shield surrounding the inner conductors. This shield serves to block any external electric fields from interfering with the signals being transmitted. Without this protection, the integrity of the data could be compromised, leading to noise and errors in communication.In addition to cables, electrostatic shielding (静电屏蔽) is also utilized in sensitive electronic components such as amplifiers and sensors. For instance, an audio amplifier may include a metal casing that provides shielding against electromagnetic interference (EMI). This shielding ensures that the sound quality remains clear and free from distortion caused by external electric fields. Similarly, sensors that measure small electrical signals are often housed in shielded enclosures to maintain their accuracy and reliability.The effectiveness of electrostatic shielding (静电屏蔽) depends on several factors, including the type of material used, its thickness, and the frequency of the external electric fields. Conductive materials such as copper and aluminum are commonly used for shielding due to their excellent conductivity. However, the design of the shield must also consider the specific application and the environment in which the device will operate. For example, in high-frequency applications, the skin effect becomes significant, requiring careful selection of materials and dimensions to ensure optimal performance.Moreover, electrostatic shielding (静电屏蔽) is not only limited to electrical devices but also plays a role in various scientific experiments. In laboratories, sensitive instruments like electron microscopes and particle detectors often require shielding to protect against stray electric fields that could distort measurements. Researchers meticulously design these shields to ensure that they do not interfere with the operation of the instruments while providing adequate protection.In conclusion, electrostatic shielding (静电屏蔽) is an essential technique in modern technology that safeguards electronic devices from unwanted external electric fields. Its applications span across telecommunications, consumer electronics, and scientific research, highlighting its significance in ensuring the reliable operation of various systems. As technology continues to advance and become more sensitive, the importance of effective electrostatic shielding (静电屏蔽) will only grow, making it a critical area of study for engineers and scientists alike.