attenuation coefficient

简明释义

衰减系数

英英释义

例句

1.In telecommunications, a lower attenuation coefficient 衰减系数 means better performance for long-distance communication.

在电信中，较低的attenuation coefficient 衰减系数 意味着远程通信的性能更好。

2.A high attenuation coefficient 衰减系数 indicates that a material absorbs a lot of energy.

高的attenuation coefficient 衰减系数 表明材料吸收了大量能量。

3.The attenuation coefficient 衰减系数 of the material determines how much signal strength is lost over distance.

该材料的attenuation coefficient 衰减系数 决定了信号强度在距离上损失多少。

4.Researchers measured the attenuation coefficient 衰减系数 of various materials to find the best option for soundproofing.

研究人员测量了各种材料的attenuation coefficient 衰减系数 以找到最佳的隔音选项。

5.The attenuation coefficient 衰减系数 can vary significantly between different types of fiber optic cables.

不同类型的光纤电缆之间，attenuation coefficient 衰减系数 可能会有显著差异。

作文

In the field of physics and engineering, understanding how waves propagate through different media is crucial. One of the key concepts in this area is the attenuation coefficient, which quantifies how much a wave decreases in intensity as it travels through a medium. This concept is particularly important in fields such as acoustics, optics, and telecommunications. The attenuation coefficient can be thought of as a measure of how much energy is lost to the medium due to scattering, absorption, or other interactions. When a sound wave travels through air, for instance, it experiences a certain degree of attenuation. This means that the sound becomes quieter as it moves further away from the source. The attenuation coefficient for sound in air is relatively low, which is why we can hear sounds from a distance. However, when sound travels through water or solid materials, the attenuation coefficient increases, resulting in a more significant loss of intensity. In optics, the attenuation coefficient plays a vital role in determining how light behaves as it passes through various substances. For example, when light enters a glass prism, some of its intensity is lost due to absorption and scattering. The attenuation coefficient for glass is typically higher than that for air, meaning that light will lose more energy as it travels through the glass. Understanding this coefficient helps engineers design better optical systems, such as lenses and fiber optics, which rely on minimal loss of light intensity. Moreover, in telecommunications, the attenuation coefficient is critical for ensuring signal integrity over long distances. When signals travel through cables or fiber optic lines, they inevitably lose some power due to the medium's properties. By knowing the attenuation coefficient of the materials used, engineers can calculate how far a signal can travel before it becomes too weak to be useful. This knowledge allows them to design repeaters and amplifiers that can boost the signal strength at appropriate intervals along the transmission path. The attenuation coefficient is also influenced by frequency; higher frequencies often experience greater attenuation. This phenomenon is especially relevant in radio communications, where different frequencies can penetrate various materials differently. For instance, lower-frequency signals can travel further through walls than higher-frequency signals, which is why AM radio can often be received indoors while FM radio may not. In conclusion, the attenuation coefficient is a fundamental parameter that describes how waves lose intensity as they propagate through different media. Its implications are vast, affecting fields ranging from audio engineering to telecommunications and optics. Understanding the attenuation coefficient enables scientists and engineers to optimize systems for better performance and efficiency. As technology continues to advance, the importance of accurately measuring and applying the attenuation coefficient will only grow, making it an essential concept in modern science and engineering.

在物理和工程领域，理解波如何通过不同介质传播至关重要。这个领域的一个关键概念是衰减系数，它量化了波在介质中传播时强度的减少程度。这个概念在声学、光学和电信等领域尤为重要。衰减系数可以被视为波在传播过程中由于散射、吸收或其他相互作用而损失的能量的度量。例如，当声波通过空气传播时，它会经历一定程度的衰减。这意味着声音在远离源头时变得更安静。空气中声波的衰减系数相对较低，这就是我们可以从远处听到声音的原因。然而，当声音通过水或固体材料传播时，衰减系数增加，导致强度显著损失。在光学中，衰减系数在确定光线通过各种物质时的行为方面起着至关重要的作用。例如，当光进入玻璃棱镜时，由于吸收和散射，其强度会损失一部分。玻璃的衰减系数通常高于空气，这意味着光在穿过玻璃时会损失更多的能量。理解这个系数帮助工程师设计更好的光学系统，例如依赖于最小光强损失的透镜和光纤。此外，在电信中，衰减系数对于确保长距离信号完整性至关重要。当信号通过电缆或光纤线路传播时，由于介质的特性，它们不可避免地会损失一些功率。通过了解所用材料的衰减系数，工程师可以计算信号在变得太弱而无法使用之前可以传播多远。这种知识使他们能够设计在传输路径的适当间隔增强信号强度的中继器和放大器。衰减系数也受频率的影响；高频率通常经历更大的衰减。这种现象在无线通信中尤为相关，因为不同频率可以以不同方式穿透各种材料。例如，低频信号可以比高频信号更远地穿透墙壁，这就是为什么AM无线电通常可以在室内接收到，而FM无线电可能无法。总之，衰减系数是一个基本参数，描述了波在通过不同介质传播时强度如何损失。它的影响广泛，涉及从音频工程到电信和光学的各个领域。理解衰减系数使科学家和工程师能够优化系统以获得更好的性能和效率。随着技术的不断进步，准确测量和应用衰减系数的重要性只会增加，使其成为现代科学和工程中的一个重要概念。