Design of a high-temperature superconducting maglev force three-dimensional measurement system
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TM932; TN06

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    Abstract:

    With the unique advantage of passive and self-stability levitation, high-temperature superconducting maglev is regarded as a promising element for a wide range of applications such as high-speed bearings, flywheel energy storage system and rail transportation. In order to investigate the levitation behavior of high-temperature superconducting maglev system, a high-temperature superconducting maglev force three-dimensional measurement system is developed, which is suitable for measuring the levitation behavior of maglev bearings. Firstly, based on the triaxial linear module with servo control and triaxial force sensor measurement unit, the hardware of measurement system is designed. Also, the data acquisition unit is developed in LabVIEW so as to realize the continuous sampling and imaging of data. Secondly, the measurement precision of high-temperature superconducting maglev force three-dimensional measurement system is validated under the constant load and permanent magnet levitation system. Finally, a finite element model of the superconductor-permanent magnet levitation system is established. Then, the levitation force behaviors of high-temperature superconductor were simulated and measured under field cooling and zero field cooling conditions. The comparison of the simulation data with the measured data shows that a well agreement between the two can be achieved. The results show that this measurement system has the characteristics of high measurement precision ( 0. 5%), high location accuracy in three-dimensional space ( ± 0. 02 mm) and synchronous measurement of three-dimensional force ( maximum levitation force 500 N, guidance force 200 N) at movement of the measured specimens.

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  • Received:
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  • Online: November 28,2023
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