frequency meter

简明释义

频率表

英英释义

例句

1.The technician used a frequency meter to measure the signal strength of the transmitter.

技术人员使用频率计测量发射机的信号强度。

2.The frequency meter showed a significant drop in frequency during the test.

频率计在测试期间显示频率显著下降。

3.A frequency meter is essential for tuning musical instruments to the correct pitch.

频率计对于将乐器调至正确音高是必不可少的。

4.We relied on the frequency meter to diagnose the malfunctioning radio equipment.

我们依靠频率计来诊断故障的无线电设备。

5.Before starting the experiment, we calibrated the frequency meter to ensure accurate readings.

在开始实验之前，我们校准了频率计以确保读数准确。

作文

In the world of electronics and telecommunications, precision and accuracy are paramount. One of the essential tools used to measure the frequency of signals is the frequency meter. A frequency meter (频率计) is an instrument that quantifies the number of cycles per second of a periodic signal, typically expressed in hertz (Hz). This device plays a crucial role in various applications, from radio broadcasting to audio engineering and even in scientific research. The operation of a frequency meter is based on the principle of measuring the time it takes for a signal to complete one full cycle. By determining the period of the signal, the frequency meter can calculate the frequency using the formula: frequency equals one divided by the period. This fundamental concept is vital for engineers and technicians who need to ensure that their systems operate within specified frequency ranges. There are several types of frequency meters, each designed for specific applications. For instance, analog frequency meters use a needle and dial to display frequency readings, while digital frequency meters provide numerical displays, often with higher accuracy and additional features such as data logging. Some advanced models can even analyze multiple frequencies simultaneously, making them invaluable in complex environments where multiple signals coexist. The importance of a frequency meter cannot be overstated, especially in telecommunications. For example, when setting up a new radio station, engineers must use a frequency meter to ensure that their transmission frequency does not interfere with existing stations. This careful calibration helps maintain clear communication channels and prevents signal distortion. Similarly, in audio engineering, sound designers utilize frequency meters to monitor audio signals, ensuring that they remain within desired frequency ranges for optimal sound quality. In scientific research, frequency meters are employed to study various phenomena, including wave propagation and resonance. Researchers can analyze the frequency of waves generated by different sources, leading to discoveries about the nature of sound, light, and other forms of energy. The versatility of the frequency meter makes it an indispensable tool in laboratories around the world. Moreover, with the advancement of technology, modern frequency meters have incorporated features such as Bluetooth connectivity, allowing data to be transmitted wirelessly to computers or mobile devices for further analysis. This innovation enhances the usability of frequency meters in fieldwork, where immediate data access can significantly impact decision-making processes. In conclusion, the frequency meter (频率计) is a vital instrument in various fields, from telecommunications to scientific research. Its ability to accurately measure and analyze frequency makes it essential for maintaining the integrity of electronic systems and exploring the intricacies of wave behavior. As technology continues to evolve, so too will the capabilities of frequency meters, ensuring they remain at the forefront of innovation in measurement technology.