dielectric

简明释义

英[ˌdaɪɪˈlektrɪk]美[ˌdaɪɪˈlektrɪk]

adj. 非传导性的；诱电性的

n. 电介质；绝缘体

英英释义

单词用法

同义词

反义词

例句

1.The influence of peak current on finishing high-speed wire electrical discharge machining (WEDM) in gas and emulsion dielectric is studied.

研究了在大气和乳化液两种介质中，峰值电流对高速走丝电火花线切割加工的影响。

2.High voltage cables are typically insulated with special water-resistant polymers that have high-dielectric strength.

通常高压电缆使用的是特殊的防水高分子聚合材料，具有很高的绝缘强度。

3.The square root and the cubic root of the dielectric constants are linearly related to the volume ratios.

介电常量的二次及三次方根与密度成线性关系。

4.Applications for Measuring Voltage from High Resistance Sources: Capacitor dielectric absorption and electrochemical measurements.

各种高阻源电压测量的应用：电容器的介电吸收和电化学测量等。

5.The Dielectric Withstand test is the third test required by the electrical safety testing standards.

电气强度试验是电气安全性能测试标准所要求的第三项测试。

6.TDDB(time-dependent dielectric breakdown)is a key method to value the quality of thin gate oxide.

经时绝缘击穿（TDDB）是评价薄栅氧化层质量的重要方法。

7.It consists of a transparent dielectric spacer.

它由一个透明的电介质隔片构成的。

8.A good dielectric insulator prevents electrical leakage in circuits.

良好的介电绝缘体可以防止电路中的电流泄漏。

9.In microwave applications, the choice of dielectric is crucial for signal integrity.

在微波应用中，介电材料的选择对信号完整性至关重要。

10.The capacitor uses a high-quality dielectric to ensure minimal energy loss.

这个电容器使用高质量的介电材料以确保能量损失最小。

11.The dielectric constant is an important factor in the design of RF components.

介电常数是射频组件设计中的一个重要因素。

12.The dielectric properties of materials can vary significantly with temperature.

材料的介电特性可能随温度显著变化。

作文

The term dielectric refers to a material that does not conduct electricity but can support an electrostatic field. This property makes dielectric materials essential in various applications, particularly in the fields of electronics and electrical engineering. For instance, when designing capacitors, engineers often select dielectric materials that have high permittivity, which allows them to store more electric charge. Common examples of dielectric materials include glass, rubber, and certain ceramics. These materials are crucial in insulating electrical components, preventing unwanted leakage currents that could lead to device failure.In the realm of telecommunications, dielectric materials play a vital role in the performance of antennas and waveguides. Antennas, which are designed to transmit or receive electromagnetic waves, often utilize dielectric substrates to enhance their efficiency. The choice of a suitable dielectric material can significantly impact the antenna's bandwidth and gain, making it a critical factor in wireless communication technologies.Moreover, dielectric materials are also used in the manufacturing of printed circuit boards (PCBs). In PCBs, the dielectric layer serves as an insulator between conductive pathways, ensuring that signals can travel without interference. The properties of the dielectric material directly influence the overall performance of the PCB, affecting factors such as signal speed and attenuation.Understanding the behavior of dielectric materials under different conditions is essential for engineers and scientists. For example, the dielectric strength of a material indicates its ability to withstand electric fields without breaking down. This characteristic is crucial for ensuring safety and reliability in electrical systems. Additionally, the temperature dependence of dielectric properties can affect the performance of devices in varying environmental conditions, necessitating careful selection and testing of materials.The study of dielectric materials has led to advancements in technology, particularly in the development of new materials with enhanced properties. Researchers are continually exploring novel dielectric substances that can improve energy efficiency, reduce losses, and enable miniaturization of electronic components. Such innovations are pivotal in pushing the boundaries of what is possible in modern electronics, from smartphones to renewable energy systems.In conclusion, the significance of dielectric materials cannot be overstated. They are foundational to the functioning of countless electronic devices and systems. As technology continues to evolve, the demand for advanced dielectric materials will only increase, driving further research and development in this critical area. Understanding the properties and applications of dielectric materials is essential for anyone involved in the fields of electronics and electrical engineering, as they play a crucial role in shaping the future of technology.

术语dielectric指的是一种不导电但可以支持静电场的材料。这种特性使得dielectric材料在各种应用中至关重要，尤其是在电子和电气工程领域。例如，在设计电容器时，工程师通常选择具有高介电常数的dielectric材料，这使它们能够储存更多的电荷。常见的dielectric材料包括玻璃、橡胶和某些陶瓷。这些材料对于绝缘电气组件至关重要，防止不必要的漏电流导致设备故障。在电信领域，dielectric材料在天线和波导的性能中发挥着重要作用。天线旨在发送或接收电磁波，通常利用dielectric基材来增强其效率。合适的dielectric材料的选择可以显著影响天线的带宽和增益，使其成为无线通信技术中的关键因素。此外，dielectric材料还用于印刷电路板（PCB）的制造。在PCB中，dielectric层作为导电路径之间的绝缘体，确保信号可以无干扰地传输。dielectric材料的特性直接影响PCB的整体性能，影响信号速度和衰减等因素。了解不同条件下dielectric材料的行为对工程师和科学家至关重要。例如，材料的介电强度表明其承受电场而不发生击穿的能力。这一特性对于确保电气系统的安全性和可靠性至关重要。此外，温度对dielectric特性的依赖性可能会影响设备在不同环境条件下的性能，因此需要仔细选择和测试材料。对dielectric材料的研究促进了技术的进步，特别是在开发具有增强特性的材料方面。研究人员不断探索新型dielectric物质，以提高能效、减少损耗并实现电子元件的小型化。这些创新对于推动现代电子技术的边界至关重要，从智能手机到可再生能源系统。总之，dielectric材料的重要性不可低估。它们是无数电子设备和系统正常运行的基础。随着技术的不断发展，对先进dielectric材料的需求只会增加，从而推动这一关键领域的进一步研究和开发。理解dielectric材料的特性和应用对于任何从事电子和电气工程领域的人来说都是至关重要的，因为它们在塑造未来技术方面发挥着关键作用。