Jul 21 – 25, 2019
Connecticut Convention Center, Level 6
US/Eastern timezone

C2Po2B-03 [14]: The Theoretical Analysis and Test Technology of the Moving Magnet Linear Motor

Jul 23, 2019, 1:30 PM
Level 6, Cryo Expo Exhibit Hall

Level 6, Cryo Expo Exhibit Hall

Poster Presentation C2Po2B - Motors and Devices


Prof. Ming Xia (Kunming Institute of Physics)


The SC100H linear Stirling cryocooler is designed by Kunming Institute of Physics. The characteristics of the magnetic circuit of the moving magnet linear oscillation motor used in SC100H was analyzed by the theoretical and experimental methods. In this study, a theoretical model of the motor was established, and its structure was simplified for easy analysis and calculation. Using the equivalent circuit methods and principle of electromechanical energy conversion, the relationship between the thrust characteristic and relative position of the mover in the motor was analyzed. The thrust characteristics of the motor at different input currents were tested by a tension test system. The results were consistent with that predicted from the theoretical analysis. Taken together, this study provided a good basis for the design and optimization for the structure and operation parameters of the motor.

Primary author

Prof. Ming Xia (Kunming Institute of Physics)


Prof. Haiying Li (Kunming Institute of Physics) Prof. Xiaoping Chen (Kunming Institute of Physics) Prof. Zhihua Gan (Zhejiang University)

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