Recently, 203 self-developed space active hydrogen atomic clocks independently developed by China Aerospace Science and Industry Corporation No. 2 Institute won the top prize in the preferential load ratio of China's space atomic clock project, and will be applied in China's space station project in about 2022 emission.
It is reported that the space atomic clock project is one of the most difficult and complex projects in China's manned space project. The project will establish a time-frequency laboratory in outer space to verify relevant scientific experiments that can not be completed on the surface of the Earth. For example, Relativity, etc. The project uses strontium light clock, rubidium fountain clock and active hydrogen atomic clock to jointly set up the space atomic clock group. Active hydrogen clock will serve as the core load for long-term uninterrupted operation.
According to experts, China will conduct time alignment over a wider space, and the high-accuracy and high-stability time-frequency signals generated by the system will enhance the capability of China Beidou Navigation System. Active hydrogen atomic clocks are the mature atomic clocks In the short-term indicators of the highest atomic clock.
203 self-developed space initiative hydrogen atomic clock, the use of storage loading and separation technology to achieve high reliability of the chamber, miniaturization and optimization of the process.Product prototype completed the current overall weight of about 40 kg, the volume of the traditional active hydrogen five One of the technical indicators have reached the leading domestic level.
Zhou Tiezhong, the project leader, said that in the future, 203 will carry out engineering design to further enhance the reliability of products and meet the requirements of the space environment. The self-developed space-active hydrogen clock will contribute to the construction of China's space atomic clock project.
