beat frequency

简明释义

拍频

英英释义

例句

1.In acoustics, the concept of beat frequency 拍频 is crucial for understanding sound wave interactions.

在声学中，beat frequency 拍频 的概念对理解声波相互作用至关重要。

2.When tuning a radio, you might notice a beat frequency 拍频 when two stations are close together.

在调试收音机时，当两个电台靠得很近时，您可能会注意到一个 beat frequency 拍频。

3.In music, when two notes are played together, the resulting sound can create a beat frequency 拍频 that enhances the harmony.

在音乐中，当两个音符同时演奏时，产生的声音可以创造出一个 beat frequency 拍频，增强和谐感。

4.The interference pattern in this experiment was due to the beat frequency 拍频 of the two sound waves.

这个实验中的干涉图案是由于两种声波的 beat frequency 拍频。

5.The beat frequency 拍频 created by the two oscillators made it easier to visualize the waveforms.

两个振荡器产生的 beat frequency 拍频 使得可视化波形变得更加容易。

作文

In the world of physics and music, the term beat frequency refers to the phenomenon that occurs when two sound waves of slightly different frequencies interfere with each other. This interference creates a new wave pattern that fluctuates in amplitude, resulting in a pulsating sound. The beat frequency is equal to the difference between the frequencies of the two waves. For example, if one wave has a frequency of 440 Hz and another wave has a frequency of 442 Hz, their beat frequency would be 2 Hz. This means that the listener would hear a sound that alternates between loud and soft at a rate of 2 times per second.Understanding beat frequency is crucial for musicians and sound engineers, as it plays a significant role in tuning instruments and creating harmonious sounds. When tuning a guitar, for instance, a musician may play a note on the guitar and then play a note on a piano. If the two notes are not perfectly in tune, the musician will hear a beat frequency, which indicates that the notes are slightly out of sync. By adjusting the tension of the guitar string, the musician can eliminate the beat frequency and achieve a harmonious sound.The concept of beat frequency is not limited to music; it also has applications in various fields of science and technology. In telecommunications, for example, beat frequency can be used in frequency modulation to transmit signals over long distances. By modulating the frequency of a carrier wave, information can be encoded and sent through the air, where it can be received and demodulated back into its original form. The beat frequency created during this process helps to distinguish the signal from background noise, ensuring clear communication.Moreover, beat frequency is also observed in nature. For instance, when two tuning forks of slightly different frequencies are struck simultaneously, they produce a beat frequency that can be heard as a rhythmical pulsing sound. This phenomenon illustrates how beat frequency is a fundamental aspect of wave behavior, present in both artificial and natural systems.In summary, the term beat frequency encapsulates a fascinating aspect of wave interference that has significant implications in music, science, and technology. Whether one is tuning an instrument, transmitting a signal, or simply enjoying the beauty of sound, understanding beat frequency enriches our appreciation of the auditory world around us. As we continue to explore the intricacies of sound and wave behavior, the concept of beat frequency remains a key topic of interest and study, revealing the underlying patterns that govern our experience of sound.

在物理和音乐的世界中，术语拍频指的是当两个频率略有不同的声波相互干扰时发生的现象。这种干扰产生了一个新的波形，导致振幅波动，产生了脉动的声音。拍频等于两个波的频率之差。例如，如果一个波的频率为440赫兹，另一个波的频率为442赫兹，它们的拍频将为2赫兹。这意味着听者将听到一种以每秒2次的速度在响亮和柔和之间交替的声音。理解拍频对于音乐家和音响工程师至关重要，因为它在调音乐器和创造和谐声音中发挥着重要作用。例如，在调音吉他时，音乐家可能会在吉他上弹奏一个音符，然后在钢琴上弹奏一个音符。如果这两个音符没有完全调谐，音乐家将听到一个拍频，这表明音符稍微不同步。通过调整吉他弦的张力，音乐家可以消除拍频，实现和谐的声音。拍频的概念不仅限于音乐；它在科学和技术的各个领域也有应用。例如，在电信中，拍频可以用于频率调制，以便在长距离传输信号。通过调制载波波的频率，可以编码信息并通过空气发送，在那里它可以被接收并解调回原始形式。在这个过程中产生的拍频有助于区分信号与背景噪声，从而确保清晰的通信。此外，拍频在自然界中也可以观察到。例如，当两个频率略有不同的音叉同时被敲击时，它们会产生一个可以听到的节奏脉动声音的拍频。这一现象说明了拍频是波行为的基本方面，存在于人工和自然系统中。总之，术语拍频概括了波干扰的一个迷人方面，这在音乐、科学和技术中具有重要意义。无论是调音乐器、传输信号，还是单纯享受声音的美丽，理解拍频都丰富了我们对周围听觉世界的欣赏。当我们继续探索声音和波行为的复杂性时，拍频的概念仍然是一个关键的研究主题，揭示了支配我们声音体验的基本模式。