According to the Science and Technology Daily, the implementation of the 'Tianqin Plan' entered a new stage. On the 30th, the first self-constructed major scientific and technological infrastructure in Guangdong Province, the space gravitational wave detection ground simulation device project and feasibility study report was officially launched. The facility is part of the 'Tianqin Project' and will be located in the Shenzhen Campus of Sun Yat-sen University. The investment will exceed 1 billion yuan.
According to reports, the 'Tianqin Plan' is the space gravitational wave detection plan initiated by Sun Yat-sen University. The experiment itself will consist of three equilateral satellites forming an equilateral triangle array. The satellite itself is highly accurate and has no drag control to suppress the solar wind, and the sun's light pressure. Such as external disturbances, the laser accurately measures the distance change caused by gravitational waves between the satellites. The 'Tianqin Plan' requires three satellites to enter a pre-selected orbit very accurately.
The gravitational wave research project will take 20 years and the total investment is about 15 billion yuan. The plan will first develop the lunar and deep-space satellite laser ranging technology to help achieve the orbital accuracy of the Tianqin satellite millimeter scale; Principle test experiment, next-generation gravity satellite experiment, etc., finally carry out the celestial space gravitational wave detection experiment: detect gravitational waves.
Academician Luo Jun introduced that the gravitational wave detection ground simulation device is an important part of the 'Tianqin Plan'. The facility aims to serve the future space gravitational wave detection. Through the construction of a space complex environment simulation system, an ultra-high precision inertial reference simulation system, Long-baseline laser interferometry simulation system, numerical simulation and data application system four systems, the ability to simulate the whole-system simulation of space gravitational wave detection, to solve the key scientific problems and high-precision inertial reference of space gravitational wave detection, super far The core technical problems such as inter-satellite ranging, accurate assessment of space complex environmental impact, and multi-degree-of-freedom formation control provide large-scale complex scientific system support. After the completion of the facility, it will provide a complete system, fine and controllable for space gravitational wave detection research in China. The simulation environment and new research methods will strive to become a world-class space gravitational wave detection research center, and will also open a new window in the field of space astronomy. At present, research institutions in many countries have expressed their wish to participate in the 'Tianqin Plan' space gravity. Wave detection research.
