frequency dependence

简明释义

频率相关

英英释义

例句

1.The phenomenon of frequency dependence 频率依赖性 can be observed in various materials when subjected to different frequencies of electromagnetic waves.

在不同频率的电磁波作用下，各种材料中可以观察到频率依赖性。

2.Certain biological systems exhibit frequency dependence 频率依赖性 in their response to stimuli, which is important for sensory processing.

某些生物系统在对刺激的反应中表现出频率依赖性，这对感官处理很重要。

3.In telecommunications, understanding frequency dependence 频率依赖性 is crucial for optimizing signal transmission.

在电信领域，理解频率依赖性对于优化信号传输至关重要。

4.Acoustic properties of materials often show frequency dependence 频率依赖性, affecting sound quality in music production.

材料的声学特性通常表现出频率依赖性，影响音乐制作中的音质。

5.The study of frequency dependence 频率依赖性 in electrical circuits helps engineers design more efficient devices.

研究电路中的频率依赖性有助于工程师设计更高效的设备。

作文

In the realm of physics and engineering, the concept of frequency dependence plays a crucial role in understanding how systems respond to varying frequencies of input signals. Frequency dependence refers to the phenomenon where the behavior or characteristics of a system change based on the frequency of the applied stimulus. This concept is particularly important in fields such as acoustics, electronics, and materials science.For instance, in acoustics, the way sound waves travel through different mediums can vary significantly depending on their frequency. Low-frequency sounds, such as bass notes, tend to travel further and penetrate obstacles more effectively than high-frequency sounds, which may be absorbed or scattered. This frequency dependence is why concerts often feature subwoofers that enhance low-frequency sounds, allowing audiences to feel the music physically. Understanding this relationship helps sound engineers design better audio systems that can deliver clear and powerful sound across a range of frequencies.Similarly, in electronics, the performance of components like capacitors and inductors can exhibit frequency dependence. For example, capacitors have a characteristic called the reactance, which changes with frequency. At low frequencies, capacitors behave like open circuits, while at high frequencies, they allow current to pass through more easily. This frequency dependence is essential for designing filters that can selectively allow certain frequencies to pass while blocking others, a common requirement in radio communication and signal processing.Moreover, materials can also show frequency dependence in their mechanical properties. For instance, viscoelastic materials, which exhibit both viscous and elastic characteristics, can behave differently when subjected to varying frequencies of stress or strain. At low frequencies, these materials may deform more easily, while at high frequencies, they might resist deformation due to their elastic nature. This frequency dependence is critical in applications such as vibration damping and shock absorption, where the performance of materials must be optimized for specific frequency ranges.Understanding frequency dependence not only aids in the design and optimization of various systems but also enhances our comprehension of natural phenomena. For example, the study of seismic waves generated by earthquakes reveals that different types of waves (P-waves and S-waves) travel at different speeds and frequencies, leading to varying effects on structures. Engineers must consider this frequency dependence when designing buildings and infrastructure to ensure they can withstand the forces generated by such events.In conclusion, frequency dependence is a fundamental concept that permeates many scientific and engineering disciplines. Whether it is in the context of sound, electrical components, or material properties, recognizing how systems react differently at various frequencies is essential for innovation and practical applications. As technology continues to advance, the importance of understanding frequency dependence will only grow, paving the way for new discoveries and improvements across multiple fields.

在物理学和工程学领域，频率依赖性这一概念在理解系统如何响应不同频率的输入信号方面发挥着至关重要的作用。频率依赖性指的是一种现象，即系统的行为或特性会根据施加刺激的频率而变化。这个概念在声学、电子学和材料科学等领域尤为重要。例如，在声学中，声音波通过不同介质传播的方式可能会因其频率而显著不同。低频声音，如低音，往往能传播得更远，并更有效地穿透障碍物，而高频声音则可能被吸收或散射。这种频率依赖性正是为什么音乐会通常配备超低音扬声器来增强低频声音，使观众能够身体上感受到音乐。理解这种关系有助于音响工程师设计出能够在各种频率范围内提供清晰而强大的声音的音响系统。类似地，在电子学中，像电容器和电感器这样的组件的性能也可以表现出频率依赖性。例如，电容器具有一种称为电抗的特性，其随频率变化。在低频下，电容器的表现类似于开路，而在高频下，它们则更容易让电流通过。这种频率依赖性对于设计能够选择性地允许某些频率通过同时阻止其他频率的滤波器至关重要，这在无线通信和信号处理中的常见要求。此外，材料在其机械性能上也可能表现出频率依赖性。例如，表现出粘弹性特征的材料在承受不同频率的应力或应变时可能表现出不同的行为。在低频下，这些材料可能更容易变形，而在高频下，由于其弹性特性，它们可能会抵制变形。这种频率依赖性在振动阻尼和冲击吸收等应用中至关重要，其中材料的性能必须针对特定频率范围进行优化。理解频率依赖性不仅有助于各种系统的设计和优化，还增强了我们对自然现象的理解。例如，对地震产生的地震波的研究表明，不同类型的波（P波和S波）以不同的速度和频率传播，从而对结构产生不同的影响。工程师在设计建筑物和基础设施时必须考虑这种频率依赖性，以确保它们能够抵御此类事件所产生的力量。总之，频率依赖性是一个基本概念，渗透到许多科学和工程学科中。无论是在声音、电气组件还是材料特性方面，认识到系统在不同频率下的反应差异对于创新和实际应用至关重要。随着技术的不断进步，理解频率依赖性的重要性只会增加，为多个领域的新发现和改进铺平道路。