phase shift

简明释义

移相

英英释义

例句

1.The sound engineer adjusted the audio settings to correct the phase shift 相位偏移 that was causing feedback.

声音工程师调整音频设置以纠正导致反馈的phase shift 相位偏移。

2.In optics, a phase shift 相位偏移 occurs when light passes through different media.

在光学中，当光通过不同介质时会发生phase shift 相位偏移。

3.The phase shift 相位偏移 in the waveform indicates a delay in the signal transmission.

波形中的phase shift 相位偏移表明信号传输的延迟。

4.In quantum mechanics, a phase shift 相位偏移 can lead to interference patterns observed in experiments.

在量子力学中，phase shift 相位偏移可以导致实验中观察到的干涉图案。

5.The engineer explained how a phase shift 相位偏移 in the signal can affect the performance of the circuit.

工程师解释了信号中的phase shift 相位偏移如何影响电路的性能。

作文

In the study of physics and engineering, the concept of phase shift plays a crucial role in understanding wave phenomena. A phase shift refers to the change in the phase of a periodic wave or signal, which can occur due to various factors such as reflection, refraction, or interference. To illustrate this concept, let’s consider a simple example involving sound waves. When two sound waves of the same frequency travel through the same medium, they can interfere with each other. If one wave experiences a phase shift, it may lead to constructive or destructive interference, ultimately affecting the amplitude of the resultant wave.In electronics, phase shift is often encountered in alternating current (AC) circuits. The voltage and current in an AC circuit can be out of phase with each other, meaning that their peaks do not occur at the same time. This phase shift can be quantified in degrees or radians and is critical for analyzing the power factor of the circuit. A significant phase shift indicates that not all the energy supplied by the source is being used effectively, which can lead to inefficiencies in power consumption.Moreover, in the field of telecommunications, phase shift modulation (PSK) is a technique used to encode data onto a carrier wave. By varying the phase of the wave, digital information can be transmitted over long distances. This method is particularly advantageous because it allows for a more robust signal that is less susceptible to noise and interference. Understanding how phase shifts affect signal integrity is essential for engineers working in this domain.The implications of phase shifts extend beyond physics and engineering; they can also be observed in various natural phenomena. For instance, in the field of biology, the circadian rhythms of living organisms can be influenced by external factors such as light and temperature, leading to a phase shift in their biological clocks. This understanding is vital for researchers studying sleep patterns and seasonal behaviors in animals.In summary, the concept of phase shift is fundamental across multiple disciplines, from physics and engineering to biology and telecommunications. It helps us comprehend how waves interact, how energy is transferred in circuits, and how information is encoded for transmission. As technology continues to evolve, the significance of phase shifts will undoubtedly remain an important area of study, influencing innovations and advancements in various fields. By grasping this concept, we can better appreciate the complexities of the world around us and the underlying principles that govern it.

在物理和工程学的研究中，相位偏移的概念在理解波动现象方面发挥着至关重要的作用。相位偏移是指周期性波或信号的相位变化，这种变化可能由于反射、折射或干涉等各种因素而发生。为了说明这个概念，让我们考虑一个涉及声波的简单例子。当两个相同频率的声波在同一介质中传播时，它们可以相互干扰。如果其中一个波经历了相位偏移，这可能导致建设性或破坏性的干涉，最终影响结果波的振幅。在电子学中，相位偏移通常出现在交流电（AC）电路中。交流电路中的电压和电流可能彼此不同步，这意味着它们的峰值不会同时出现。这种相位偏移可以用度数或弧度来量化，对于分析电路的功率因数至关重要。显著的相位偏移表明并非所有由源供给的能量都得到了有效利用，这可能导致功耗效率低下。此外，在电信领域，相位偏移调制（PSK）是一种将数据编码到载波波上的技术。通过改变波的相位，可以在长距离内传输数字信息。这种方法特别有利，因为它允许更强大的信号，不易受到噪音和干扰的影响。理解相位偏移如何影响信号完整性对于在该领域工作的工程师至关重要。相位偏移的影响超越了物理和工程学；它们也可以在各种自然现象中观察到。例如，在生物学领域，生物体的昼夜节律可能会受到光线和温度等外部因素的影响，从而导致其生物钟的相位偏移。这种理解对研究动物睡眠模式和季节性行为的研究人员至关重要。总之，相位偏移的概念在多个学科中都是基础，从物理学和工程学到生物学和电信。它帮助我们理解波是如何相互作用的，能量是如何在电路中传递的，以及信息是如何被编码以进行传输的。随着技术的不断发展，相位偏移的重要性无疑将继续成为一个重要的研究领域，影响各个领域的创新和进步。通过掌握这一概念，我们可以更好地欣赏周围世界的复杂性以及支配它的基本原理。