On July 30, 2022, Jiujiang Ruyang Precision Technology Co., Ltd. independently developedHigh precision fully automatic inclinometer calibration deviceandTwo dimensional direct drive tracking turntable based on quantum satellite communicationThe two projects successfully passed the achievement appraisal meeting organized by Jiangxi Academy of Sciences, and the appraisal committee of the meeting was composed of authoritative experts in the fields of precision instruments and optical communication in China. After listening to reports, reviewing materials, watching live demonstrations, and answering questions, the attending experts unanimously recognized the above two achievementsThe overall technology has reached the leading level domestically, and some technological achievements have reached the international advanced level。

High precision fully automatic inclinometer calibration deviceIt is Ruyang Company; In response to market demand and combined with applications in the field of metrology, high-precision precision shaft systems have been developed for the functions and structural characteristics of inclinometers. Nonlinear least squares fitting error compensation technology has been adopted to improve the angle measurement accuracy by an order of magnitude. The project product integrates precision machinery, measurement and control technology, software technology, and metrology technology, achieving fully automatic and efficient calibration of inclinometers, greatly improving the accuracy and efficiency of detection and calibration. It has been widely used in various levels of metrology institutions and inclinometer tube manufacturers, promoting the rapid development of the industry. Obtained 2 invention patents and 1 software copyright.

Two dimensional direct drive tracking turntable based on quantum satellite communicationFocusing on the future development direction of quantum communication and information industry, committed to solving the problem of quantum satellite launch; The receiving scheme of the secure and confidential communication ground station for radio signals, the optimized structural design, material selection, and processing technology of the project products have improved the reliability of the turntable in various complex and harsh environments such as high altitude, ocean, and wilderness. It has achieved high-precision tracking of the low orbit Mozi satellite and wide adaptability to different load installations, with significant economic benefits and broad market application prospects. Obtained 4 invention patents and 2 software copyrights

The attending experts systematically considered the various components of the "two-dimensional direct drive tracking turntable based on quantum satellite communication" for the first time, developed integrated control software, successfully solved the problem of low orbit satellite tracking accuracy, and realized satellite ground station equipment; The technological breakthroughs in miniaturization, lightweighting, and easy installation have been highly praised.

With the successful launch of the quantum satellite "Ji'nan-1", China has achieved real-time satellite ground quantum key distribution based on micro nano satellites and miniaturized ground stations for the first time in the world, building a low-cost and practical integrated quantum secure communication network between heaven and earth.Two dimensional direct drive tracking turntable based on quantum satellite communicationThe successful development of China's commercial quantum secure communication satellite constellation integrated quantum secure communication network is of great significance for the miniaturization and rapid deployment of satellite ground stations in scenarios such as offshore islands and overseas institutions.