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To calculate the position and number of passive shimming ferromagnetic elements, a simulation algorithm is designed for magnetic resonance imaging(MRI)permanent magnet system. 实验结果表明,该方法能够有效地指导无源匀场工作,得到满意的匀场效果。
RESEARCH AND ANALYSIS ON THE SHAPE OF THE PERMANENT MAGNET TORQUE CHARACTERISTIC CURVE OF POLARIZED MAGNETIC SYSTEM 极化磁系统永磁力矩特性曲线形状的分析与研究
VIRTUAL DESIGN OF PERMANENT MAGNET REVERSION LINE'S STARTING POINT IN POLARIZED MAGNETIC SYSTEM BASED ON FINITE ELEMENT 基于有限元法的极化磁系统永磁回复线起始点的虚拟设计
Hangzhou Permanent Magnet Group Co., LTD. 杭州永磁集团有限公司。
Permanent Magnet Lifter is a kind of lifting gear. 永磁起重器是起重工具的一种。
EXPLORATION OF THE STARTING POINT OF RECOIL LINE OF PERMANENT MAGNET DECIDED BY THE WORKING STATUS OF THE POLARIZED MAGNETIC SYSTEM 决定于极化磁系统工作状态的永磁回复线起始点的探讨
Keywords MRI;magnet system;permanent magnet;passive shimming;active shimming;shim coils;FEA;magnetic induction intensity;magnetic field homogeneity; 磁共振成像;磁体系统;永磁体;无源匀场;有源匀场;匀场线圈;有限元分析;磁感应强度;磁场均匀度;
A bar on horseshoe magnet is called a permanent magnet. 棒形或马蹄形磁体称为永磁体。
A novel permanent magnet in-wheel motor control system based on DSP for a micro EV is presented. 本文设计了一种基于DSP的专用于短距离运输的微型电动车 (MicroEV)的永磁无刷轮毂电机控制系统 ,提出的控制策略是进行电压控制的同时进行对应于加速踏板踏位的电流预测控制 ;
The electric drive system, dubbed Hi-Pa Drive, packs four permanent magnet brushless motors with one in each wheel. 电动驱动系统，被称为高新技术坝道，包四永磁无刷电机在每个车轮。
Slowly move the permanent magnet in a circle above the compass. 在指南针上方,绕着圆圈慢慢地移动永久磁铁。
Key technologies in making permanent magnet motor were introduced. 介绍了永磁电机制造中的关键工艺。
DEVELOPMENT OF CXY CYLINDRICAL RARE EARTH PERMANENT MAGNETIC SEPARATOR WITH WIGGLING MAGNETIC SYSTEM CXY稀土永磁摇摆磁系筒式磁选机的研制
Objective: To develop a rapid and automated shimming method in permanent magnet MRI system. 36T永磁开放式磁共振成像MRI系统上发展实现一种快速动态自动匀场技术。
Methods 111 cases were studied using FLAIR and conventional T2WI of fast spin echo(FSE) and DWI sequence on 0.35T permanent magnet MRI system. 方法应用0.;35T永磁MRI系统;对111例脑部MRI受检者分别使用FLAIR与常规FSE T2WI及DWI序列进行对比分析。
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。
In this paper,the maximum torque per ample(MTPA) control in permanent magnet synchronous motor(PMSM) direct torque control(DTC) driving system was studied. 在永磁同步电动机直接转矩控制和最大转矩电流比控制理论基础上,研究了永磁同步电动机直接转矩控制驱动系统最大转矩电流比控制的实现。
As the permanent magnet synchronous motor(PMSM) is a multi-variable strong-coupled, nonlinear system, a feedback linearised controller is designed to regulate it s speed response. 针对交流永磁同步电动机(PMSM)多变量、强耦合、非线性的特点,设计了状态反馈线性化控制器,用于速度环的调节。
The headphone features a neodymium magnet system for accurate reproduction and balanced sound. 此款耳机的特色是钕磁铁系统能够精确的再现和平衡声音。
The direct torque control for permanent magnet synchronous motor is affected by the variation of stator resistance, and con-sequently the accuracy of speed adjusting system. 永磁同步电机直接转矩控制受定子电阻变化影响,进而影响调速系统的精度。