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- aging of permanent magnets 永磁材料的时效
- The decay oscillating wave pulses can be applied in situations such as demagnetization of permanent magnets. 交流衰减波电流可用于永磁体的退磁等应用中。
- Shanghai Jiaotong University, main research area: sensorless control of permanent magnet synchronous motor. 向为永磁同步电机的无传感器控制。
- Emphatically reviewed four systems of permanent magnet material: Al-Ni-Co magnet, ferrite magnet, rare-earth magnet and glue magnet. 着重评介了铝镍钴系永磁材料、氧体永磁材料、土永磁材料和粘结永磁材料四大系列。
- Direct torque control(DTC)of permanent magnet synchronous motor(PMSM)was research,and a PMSM DTC system based on TMS320LF2407 was developed. 对永磁同步电动机直接转矩控制运行机理进行了研究。 在此基础上开发了一套基于TMS320LF2407的永磁同步电动机直接转矩控制交流调速系统。
- The variation relation between radial forces, the thickness of permanent magnet and currents in radial force windings is also studied in the theory. 从理论上分析了径向悬浮力与永磁体厚度、径向悬浮力绕组电流之间的关系;
- It gives them a sense of permanence in an age of change. 在变化的时代,传统给了他们一种永恒感。
- Researches on reducing cogging force is indispensable for improving the performance of permanent magnet brushless DC linear motor(PMBLDCLM). 为提高永磁无刷直流直线电机的性能,必须研究减小其齿槽定位力(齿槽力)的技术措施。
- Equivalent method of permanent magnet on recoil line and recoil line equation of permanent magnet were utilized,when using the analysis method. 在用解析法求解时,用到了永磁工作于回复线上的等效处理和永磁回复线方程式。
- A testing device for mechanical characteristics of permanent magnet actuator vacuum circuit breakers based on DSP was present. 介绍了一种基于DSP的永磁机构真空断路器机械特性测试装置。
- The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
- You Yimin,Zheng Jun,Luo Wenke.Feautures and tendency to develop of permanent magnet actuator[J].High Voltage Apparatus,2001,37(1):44-47(in Chinese). [1]游一民;郑军;罗文科.;永磁机构及其发展的动态[J]
- A novel fuzzy PI controller is proposed to improve the disturbance-resisting performance of permanent magnet synchronous motor servo systems. 为提高永磁同步电动机控制系统的抗扰性能,设计了一种新型的模糊PI控制器。
- I don't think he looks his age of seventy. 我感到他看起来不像70岁的人。
- Control characteristics of permanent magnet synchronous linear motors (PMSLM) are improved by studying measures to reduce the force ripple in PMSLM. 摘要为改善永磁直线同步电机的控制性能,需要研究减小其推力波动的技术措施。
- The way to determine the sizes of permanent magnet and the new ways of capacitance compensation and calculation were presented. 提出新的电容补偿方法及补偿电容量的计算,简单介绍了稳压电路的工作原理;
- This disease produces premature aging of the brain. 这种疾病使大脑过早衰老。
- The age of majority is eighteen. 成年的法定年龄是18岁。
- The waveforms of the no-load back-electromotive force (BEMF) of permanent magnet synchronous linear motors can be analyzed using finite element analyses. 在利用有限元分析永磁同步直线电机空载反电势波形时,二维方法不能反映磁钢的形状而三维方法又过于复杂费时。
- He ran away from home at the age of thirteen. 他十三岁那年就离家出走了。