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《Transducer and Microsystem Technologies》 2006-10
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Research on test of the detent force in permanent magnet linear synchronous motor

ZHOU Tian-feng~1,LIU Cheng-ying~1,ZHAO Tong~1,SUN Jie~1,LIN Jia-chun~2(1.Department of Precision Instruments and Mechanology,Tsinghua University,Beijing 100084,China;2.College of Engineering,China Agricultural University,Beijing 100083,China)  
In order to satisfy the smoothness of thrust of flat three-phase permanent magnet linear synchronous motor(PMLSM),factors and regularity of its end force and slot force are analyzed through finite element method.A method to measure the detent force in the right and left direction according to reciprocating movement on the whole stroke is introduced,which can eliminate the effect of the friction force,and the experiment is carried out on an optimized prototype.TMS320F2812 digital signal processor(DSP) collected the signal of force-transducer and encoder.After calculation,detent force as a function of displacement is acquired accurately and rapidly,and the measurement error can be within 3 N.The results of experiment justify the validity of the analysis model,which is useful for the further design of high performance servo controller of PMLSM.
【Fund】: 国家"十五"科技攻关项目(2001BA205B04)
【CateGory Index】: TM359.4
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