absorption coefficient

简明释义

吸收系数

英英释义

例句

1.The absorption coefficient of a material determines how much light is absorbed when it passes through the material.

材料的吸收系数决定了光在穿透材料时被吸收的多少。

2.In optics, the absorption coefficient is crucial for calculating the intensity of light after it travels through a medium.

在光学中，吸收系数对于计算光经过介质后强度的变化至关重要。

3.The absorption coefficient can be used to determine the efficiency of solar panels in converting sunlight into electricity.

可以使用吸收系数来确定太阳能电池板将阳光转化为电能的效率。

4.Researchers are studying the absorption coefficient of various dyes to improve color fastness in textiles.

研究人员正在研究各种染料的吸收系数，以改善纺织品的色牢度。

5.Different wavelengths of light have different absorption coefficients, affecting how they interact with materials.

不同波长的光具有不同的吸收系数，这影响了它们与材料的相互作用。

作文

The concept of the absorption coefficient plays a crucial role in various fields of science and engineering, particularly in optics, acoustics, and materials science. It is defined as a measure of how much light, sound, or other forms of energy are absorbed by a material when they pass through it. The absorption coefficient quantifies the extent to which a substance can absorb incident energy, and it is typically represented by the symbol α (alpha). Understanding this coefficient is essential for engineers and scientists who work with different materials and need to predict their behavior when exposed to various forms of energy.In optics, for instance, the absorption coefficient helps determine how much light is transmitted through a medium, such as glass or water. When light strikes a surface, some of it is reflected, some is transmitted, and some is absorbed. The absorption coefficient indicates the fraction of light that is absorbed by the material. A higher value of the absorption coefficient means that the material absorbs more light, while a lower value suggests that the material is more transparent. This property is particularly important in designing optical devices like lenses and filters, where controlling light transmission is critical.Similarly, in acoustics, the absorption coefficient measures how much sound energy is absorbed by a material. Different materials have different abilities to absorb sound; for example, soft materials like carpets and curtains have high absorption coefficients, meaning they are effective at reducing noise levels in a room. On the other hand, hard surfaces like concrete or glass have low absorption coefficients and tend to reflect sound waves instead. This understanding is vital for architects and acoustic engineers who aim to create spaces with optimal sound quality, whether it be in concert halls, recording studios, or residential areas.In materials science, the absorption coefficient is also significant when studying the thermal properties of materials. It helps in understanding how materials interact with thermal radiation. For example, materials with high absorption coefficients will absorb more heat when exposed to sunlight, which is an essential factor in designing energy-efficient buildings and solar panels. Engineers must consider the absorption coefficient when selecting materials for construction to ensure they optimize energy use and maintain comfortable indoor temperatures.Moreover, the absorption coefficient can vary with factors such as wavelength, temperature, and the physical state of the material. This variability means that accurate measurements and calculations are necessary for precise applications. Scientists often conduct experiments to determine the absorption coefficient of new materials, providing valuable data that can inform future research and development.In conclusion, the absorption coefficient is a fundamental parameter that influences how materials interact with various forms of energy. Its importance spans multiple disciplines, including optics, acoustics, and materials science. By understanding and applying the principles of the absorption coefficient, professionals can make informed decisions in their respective fields, leading to innovations and improvements in technology and design. As research continues, the insights gained from studying the absorption coefficient will undoubtedly contribute to advancements in science and engineering, enhancing our understanding of the world around us.

吸收系数的概念在光学、声学和材料科学等多个科学和工程领域中发挥着至关重要的作用。它被定义为当光、声或其他形式的能量通过材料时，材料吸收多少的能量的度量。吸收系数量化了物质在遭受入射能量时的吸收程度，通常用符号α（阿尔法）表示。理解这个系数对工程师和科学家们来说至关重要，他们需要预测不同材料在暴露于各种形式的能量时的行为。例如，在光学中，吸收系数帮助确定光通过介质（如玻璃或水）时的传输程度。当光线照射到表面时，一部分被反射，一部分被传输，还有一部分被吸收。吸收系数指示了被材料吸收的光的比例。较高的吸收系数意味着材料吸收更多的光，而较低的值则表明材料更透明。这种特性在设计光学设备（如镜头和滤光片）时尤为重要，因为控制光的传输是关键。同样，在声学中，吸收系数测量材料吸收多少声能。不同材料的声能吸收能力不同；例如，地毯和窗帘等柔软材料具有较高的吸收系数，这意味着它们在降低房间噪音水平方面非常有效。另一方面，混凝土或玻璃等硬表面的吸收系数较低，倾向于反射声波。这种理解对建筑师和声学工程师至关重要，他们旨在创造具有最佳音质的空间，无论是在音乐厅、录音室还是住宅区。在材料科学中，吸收系数在研究材料的热性能时也很重要。它有助于理解材料如何与热辐射相互作用。例如，具有高吸收系数的材料在阳光照射下会吸收更多的热量，这是设计节能建筑和太阳能电池板的一个重要因素。工程师在选择建筑材料时必须考虑吸收系数，以确保优化能源使用并保持舒适的室内温度。此外，吸收系数可能会因波长、温度和材料的物理状态而异。这种变化意味着准确的测量和计算对于精确应用是必要的。科学家们经常进行实验以确定新材料的吸收系数，从而提供有价值的数据，指导未来的研究和开发。总之，吸收系数是影响材料与各种形式能量相互作用的基本参数。它的重要性跨越多个学科，包括光学、声学和材料科学。通过理解和应用吸收系数的原理，专业人士能够在各自的领域做出明智的决策，从而带来技术和设计的创新与改进。随着研究的持续，研究吸收系数所获得的见解无疑将为科学和工程的进步做出贡献，增强我们对周围世界的理解。