Time Accuracy Requirements Are In The Range Of Milliseconds Of Green Laser Pointer
In recent years, the green laser pointer has become a hot spot in the development of international metrology science. As early as 2006, the National Time Service Center began to deploy light clock research. The light clock is the atomic clock most likely to redefine the "second" in the future. What value does it have? Zhang Xiaofei, a researcher at the National Frequency Center's Quantum Frequency Standards Research Office, said, "For example, when people are catching trains and high-speed trains, the time accuracy requirements are usually in the range of seconds, which is on the order of seconds; in the financial industry. SSE The Shenzhen Stock Exchange must know the financial transaction time accurately. The requirement for the accuracy of the synchronization time is within the range of milliseconds of green laser pointer.
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On the high-speed road, mobile communication should not have green laser pointer interruption or delay. The requirement for time accuracy must reach the order of microseconds. Compared with the familiar nanoseconds, the accuracy and stability of the optical clock system of our time center has been improved by billions of times. "At the same time, the research results will also have an important impact on applications such as satellite navigation, communications, and computer network synchronization. Research and development in satellite navigation, deep space exploration, precision physics and other green laser pointer fields. More accurate time transfer methods are needed.
2020-02-18 03:45:53
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