sinusoidal waveform

简明释义

正弦波形

英英释义

例句

1.To simulate the AC voltage, we modeled it as a sinusoidal waveform.

为了模拟交流电压，我们将其建模为正弦波形。

2.In digital signal processing, a sinusoidal waveform is often used as a basic building block.

在数字信号处理过程中，正弦波形常被用作基本构建块。

3.The output of the function generator was set to produce a sinusoidal waveform at 1 kHz.

函数发生器的输出设置为产生1 kHz的正弦波形。

4.The sinusoidal waveform produced by the oscillator was analyzed using an oscilloscope.

通过示波器分析了振荡器产生的正弦波形。

5.The audio engineer used a generator to create a sinusoidal waveform for testing the sound system.

音频工程师使用发生器生成了一个正弦波形来测试音响系统。

作文

The concept of a sinusoidal waveform is fundamental in the fields of physics and engineering. A sinusoidal waveform is a mathematical curve that describes a smooth periodic oscillation. It is named after the sine function, which is one of the basic functions in trigonometry. The sinusoidal waveform is characterized by its amplitude, frequency, and phase, making it essential for understanding various phenomena such as sound waves, light waves, and alternating current (AC) in electrical circuits.To begin with, the amplitude of a sinusoidal waveform refers to the maximum extent of the oscillation from its central position. This is crucial in applications like audio engineering, where the amplitude determines the loudness of a sound. For example, when a musician plays a note on a guitar, the string vibrates in a sinusoidal waveform, producing sound waves that travel through the air. The louder the note, the greater the amplitude of the sinusoidal waveform.Next, frequency is another important characteristic of a sinusoidal waveform. It indicates how many cycles occur in a unit of time, typically measured in Hertz (Hz). In music, different frequencies correspond to different pitches. A higher frequency results in a higher pitch, while a lower frequency leads to a lower pitch. Understanding the frequency of a sinusoidal waveform is essential for musicians and sound engineers, as it allows them to create harmonious sounds and avoid dissonance.Additionally, the phase of a sinusoidal waveform is a measure of the position of the waveform relative to a reference point in time. It can affect how multiple waveforms interact with each other. For instance, in electrical engineering, if two AC signals are out of phase, they can interfere with one another, leading to constructive or destructive interference. This principle is vital in designing circuits and ensuring that devices operate efficiently.In practical applications, sinusoidal waveforms are ubiquitous. In the realm of electricity, most household appliances operate on AC, which is fundamentally a sinusoidal waveform. The alternating current switches direction periodically, allowing for the efficient transmission of electricity over long distances. This is why understanding sinusoidal waveforms is crucial for electrical engineers.Moreover, in communication systems, sinusoidal waveforms are used in modulation techniques to transmit information over radio waves. By varying the amplitude or frequency of a sinusoidal waveform, information can be encoded and sent over vast distances, enabling everything from radio broadcasts to mobile phone communications.In conclusion, the sinusoidal waveform is a fundamental concept that permeates various fields, including physics, engineering, and music. Its characteristics—amplitude, frequency, and phase—play significant roles in how we understand and manipulate waves in both natural and technological contexts. As we continue to explore the intricacies of waveforms, the importance of the sinusoidal waveform will undoubtedly remain at the forefront of scientific and engineering advancements.

正弦波形的概念在物理学和工程学领域中是基础性的。正弦波形是一种数学曲线，描述了平滑的周期性振荡。它以正弦函数命名，正弦函数是三角学中的基本函数之一。正弦波形的特征包括其幅度、频率和相位，这使得它在理解各种现象（如声波、光波和电路中的交流电）时至关重要。首先，正弦波形的幅度指的是振荡从中心位置的最大偏移量。这在音频工程等应用中至关重要，因为幅度决定了声音的响度。例如，当音乐家在吉他上弹奏一个音符时，琴弦以正弦波形振动，产生穿过空气传播的声波。音符越响，正弦波形的幅度就越大。其次，频率是正弦波形的另一个重要特征。它表示单位时间内发生的周期数，通常以赫兹（Hz）为单位。在音乐中，不同的频率对应不同的音高。较高的频率会产生较高的音调，而较低的频率则会导致较低的音调。理解正弦波形的频率对音乐家和音响工程师至关重要，因为这使他们能够创造和谐的声音并避免不和谐。此外，正弦波形的相位是相对于时间参考点的波形位置的度量。它可以影响多个波形之间的相互作用。例如，在电气工程中，如果两个交流信号相位不同，它们可能会相互干扰，导致建设性或破坏性的干扰。这一原理在电路设计中至关重要，确保设备高效运行。在实际应用中，正弦波形无处不在。在电力领域，大多数家用电器都使用交流电，而交流电本质上就是一种正弦波形。交流电定期改变方向，使得电能在长距离传输中高效。这就是为什么理解正弦波形对电气工程师至关重要。此外，在通信系统中，正弦波形用于调制技术，以便通过无线电波传输信息。通过改变正弦波形的幅度或频率，可以编码信息并发送到远方，从而实现从广播到手机通信的一切。总之，正弦波形是一个渗透到物理学、工程学和音乐等多个领域的基础概念。它的特征——幅度、频率和相位——在我们理解和操控自然和技术背景下的波时发挥着重要作用。随着我们继续探索波形的复杂性，正弦波形的重要性无疑将在科学和工程进步的前沿保持不变。