radio time signal

简明释义

无线电时号

英英释义

例句

1.The clock in my living room receives a radio time signal every hour to keep perfect time.

我客厅里的时钟每小时接收一次无线电时间信号以保持准确的时间。

2.The radio time signal broadcasted from the atomic clock is used worldwide.

从原子钟广播的无线电时间信号在全球范围内使用。

3.Amateur radio operators often tune in to radio time signals for precise timekeeping.

业余无线电爱好者经常调谐到无线电时间信号以获得精确的计时。

4.Many GPS devices rely on radio time signals to determine their exact location.

许多GPS设备依赖于无线电时间信号来确定其确切位置。

5.The scientist calibrated the equipment using a radio time signal to ensure accurate measurements.

科学家使用无线电时间信号校准设备，以确保测量的准确性。

作文

In our fast-paced world, the need for accurate timekeeping has never been more critical. One of the most reliable methods for achieving precise synchronization is through the use of a radio time signal. A radio time signal is a time reference transmitted via radio waves, allowing devices to synchronize their clocks with an official time source. This technology is essential for various applications, including navigation, telecommunications, and broadcasting. The concept of a radio time signal dates back to the early 20th century when scientists began experimenting with the transmission of time signals over radio frequencies. One of the first known time broadcasts was conducted by the U.S. Naval Observatory in 1905. Over the years, this practice evolved, and several countries established their own time signal stations. Today, these signals are broadcasted from various locations around the world, ensuring that people can access accurate time information regardless of where they are.The operation of a radio time signal station typically involves a highly accurate atomic clock. These clocks are capable of maintaining time with incredible precision, often only losing a second over millions of years. The atomic clock generates a time code, which is then modulated onto a radio frequency and transmitted as a radio time signal. Devices equipped with receivers can pick up these signals and adjust their internal clocks accordingly.One of the most well-known examples of a radio time signal is the signal broadcasted by the WWVB station in the United States, which operates at a frequency of 60 kHz. This station provides a time signal that is used by various consumer electronics, such as wristwatches and clocks, to maintain accurate time. Similarly, the German DCF77 and the Japanese JJY are other notable examples of radio time signals that serve similar purposes in their respective countries.The importance of radio time signals extends beyond personal devices. In industries such as aviation and maritime navigation, accurate timekeeping is crucial for safety and operational efficiency. For example, air traffic control systems rely on synchronized clocks to manage flight schedules and ensure that aircraft are safely spaced apart during takeoff and landing. Additionally, GPS technology, which is vital for navigation, also depends on precise timing derived from radio time signals to calculate positions accurately.As we move further into the digital age, the role of radio time signals is becoming even more significant. With the rise of the Internet of Things (IoT), where numerous devices are interconnected, having a reliable time reference is essential for coordinating actions and data sharing among devices. The synchronization provided by radio time signals ensures that these devices operate seamlessly together, enhancing efficiency and productivity.In conclusion, the radio time signal is an indispensable tool in modern society, facilitating accurate timekeeping across various sectors. Whether it is for personal use or critical industrial applications, the ability to receive and utilize radio time signals has transformed how we perceive and manage time. As technology continues to advance, the significance of these signals will only grow, solidifying their place as a cornerstone of our increasingly connected world.

在我们快节奏的世界中，准确计时的需求从未如此重要。实现精确同步的最可靠方法之一是通过使用无线电时间信号。无线电时间信号是通过无线电波传输的时间参考，使设备能够与官方时间源同步其时钟。这项技术对导航、通信和广播等各种应用至关重要。无线电时间信号的概念可以追溯到20世纪初，当时科学家们开始实验通过无线电频率传输时间信号。美国海军天文台在1905年进行的首次已知时间广播就是一个例子。随着时间的推移，这一做法不断发展，多个国家建立了自己的时间信号站。如今，这些信号从世界各地的不同地点广播，确保人们无论身在何处都能获取准确的时间信息。无线电时间信号站的操作通常涉及一个高度精确的原子钟。这些钟能够以惊人的精度保持时间，通常在数百万年内只会失去一秒。原子钟生成一个时间码，然后将其调制到无线电频率上，作为无线电时间信号进行传输。配备接收器的设备可以接收到这些信号，并相应地调整其内部时钟。美国的WWVB站是最著名的无线电时间信号之一，其工作频率为60 kHz。该站提供的时间信号被各种消费电子产品（如手表和时钟）用于保持准确的时间。类似地，德国的DCF77和日本的JJY也是其他显著的无线电时间信号示例，在各自国家中发挥着类似的作用。无线电时间信号的重要性不仅限于个人设备。在航空和海洋导航等行业中，准确的计时对于安全和运营效率至关重要。例如，空中交通控制系统依赖同步时钟来管理航班时间表，并确保飞机在起飞和降落时安全间隔。此外，GPS技术对于导航也依赖于从无线电时间信号中获得的精确时机，以准确计算位置。随着我们进一步进入数字时代，无线电时间信号的角色变得更加重要。随着物联网（IoT）的兴起，众多设备互联互通，可靠的时间参考对于协调设备之间的行动和数据共享至关重要。无线电时间信号提供的同步确保这些设备能够无缝协作，从而提高效率和生产力。总之，无线电时间信号是现代社会中不可或缺的工具，在各个领域促进准确的计时。无论是个人使用还是关键的工业应用，接收和利用无线电时间信号的能力改变了我们感知和管理时间的方式。随着技术的不断进步，这些信号的重要性只会增加，巩固它们作为我们日益互联世界基石的地位。