hertz The unit of measurement for frequency

简明释义

赫兹

英英释义

例句

1.The human hearing range is typically between 20 hertz The unit of measurement for frequency and 20,000 hertz The unit of measurement for frequency.

人类的听觉范围通常在20赫兹，即频率的测量单位到20,000赫兹，即频率的测量单位之间。

2.A bicycle's speedometer may measure wheel rotations in hertz The unit of measurement for frequency.

自行车的速度计可能以赫兹，即频率的测量单位来测量车轮的转动。

3.The audio system operates at a frequency of 440 hertz The unit of measurement for frequency.

音频系统的工作频率为440赫兹，即频率的测量单位。

4.In radio broadcasting, stations are assigned frequencies in megahertz, which are millions of hertz The unit of measurement for frequency.

在广播中，电台分配的频率以兆赫为单位，即数百万的赫兹，即频率的测量单位。

5.The oscillation of the pendulum is measured in hertz The unit of measurement for frequency.

摆的振荡以赫兹，即频率的测量单位来测量。

作文

Understanding the concept of frequency is essential in various fields, including physics, engineering, and even music. One of the fundamental units used to measure frequency is hertz The unit of measurement for frequency. This term, named after the German physicist Heinrich Hertz, represents the number of cycles per second of a periodic wave. In simpler terms, if a wave completes one full cycle in one second, it has a frequency of one hertz (1 Hz). Frequency plays a significant role in our daily lives, from the sound waves we hear to the electromagnetic waves that allow us to communicate wirelessly. For instance, when we listen to music, we are experiencing sound waves that vibrate at specific frequencies. Different musical notes correspond to different frequencies; for example, the note A above middle C has a frequency of 440 Hz. This means that the sound wave vibrates 440 times per second, producing a tone that we recognize as the note A.In the realm of technology, hertz The unit of measurement for frequency is crucial in understanding how electronic devices operate. For example, computer processors are often rated in gigahertz (GHz), which indicates how many billion cycles per second they can perform. A processor with a speed of 3 GHz can execute three billion cycles per second, allowing it to perform complex calculations and run applications efficiently. Moreover, in telecommunications, frequencies are allocated for various types of communication. Radio stations, for instance, broadcast their signals at specific frequencies measured in megahertz (MHz). A radio station broadcasting at 101.1 MHz transmits its signal at 101.1 million cycles per second. This allocation of frequencies ensures that different stations do not interfere with each other, allowing listeners to enjoy clear audio without disruption.Understanding hertz The unit of measurement for frequency also has implications in health and safety. For example, certain frequencies can affect human health. Research has shown that exposure to extremely low frequencies (ELF) can have biological effects, leading to concerns about power lines and other sources of ELF radiation. On the other hand, higher frequencies, such as those used in microwave ovens, can cause heating effects in food due to the rapid oscillation of water molecules at those frequencies.In conclusion, hertz The unit of measurement for frequency is a vital concept that permeates many aspects of our lives. From the music we enjoy to the technology we rely on, frequency measurements help us understand and navigate the world around us. Whether it’s appreciating the nuances of sound or recognizing the significance of frequency in technology and health, the concept of hertz remains integral to our understanding of the universe. As we continue to advance in science and technology, the importance of mastering this unit of measurement will only grow, highlighting the interconnectedness of various disciplines and the fundamental principles that govern them.

理解频率的概念在物理学、工程学甚至音乐等多个领域都是至关重要的。用于测量频率的基本单位之一是hertz The unit of measurement for frequency。这个术语以德国物理学家海因里希·赫兹的名字命名，表示周期波每秒的循环次数。简单来说，如果一个波在一秒内完成一个完整的循环，它的频率就是一个赫兹（1 Hz）。频率在我们的日常生活中扮演着重要角色，从我们听到的声波到允许我们无线通讯的电磁波。例如，当我们听音乐时，我们体验到的声波以特定的频率振动。不同的音乐音符对应不同的频率；例如，中音C上方的A音符的频率为440 Hz。这意味着声波每秒振动440次，产生我们所认知的A音符。在技术领域，hertz The unit of measurement for frequency对于理解电子设备的运作至关重要。例如，计算机处理器通常以千兆赫（GHz）为单位进行评级，这表明它们每秒可以执行多少十亿个周期。一个速度为3 GHz的处理器可以每秒执行三十亿个周期，从而高效地执行复杂计算和运行应用程序。此外，在电信领域，频率被分配用于各种类型的通信。例如，广播电台在以特定频率（以兆赫计）播出信号。例如，一个在101.1 MHz播出的电台以每秒1.011百万个周期传输其信号。这种频率的分配确保了不同的电台不会相互干扰，使听众能够享受清晰的音频，而不受干扰。理解hertz The unit of measurement for frequency也对健康和安全有影响。例如，某些频率可能会影响人类健康。研究表明，暴露于极低频（ELF）下可能会产生生物效应，引发对电力线和其他ELF辐射源的担忧。另一方面，更高的频率，例如微波炉中使用的频率，由于水分子在这些频率下的快速振荡，可能会对食物产生加热效果。总之，hertz The unit of measurement for frequency是一个重要概念，渗透到我们生活的许多方面。从我们喜爱的音乐到我们依赖的技术，频率测量帮助我们理解和导航周围的世界。无论是欣赏声音的细微差别，还是认识到频率在技术和健康中的重要性，赫兹的概念在我们理解宇宙中仍然是不可或缺的。随着我们在科学和技术上的不断进步，掌握这一测量单位的重要性只会增加，突显出各个学科之间的相互联系以及支配它们的基本原则。