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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. 實(shí)驗結果表明,該方法能夠有效地指導無(wú)源勻場(chǎng)工作,得到滿(mǎn)意的勻場(chǎng)效果。
- RESEARCH AND ANALYSIS ON THE SHAPE OF THE PERMANENT MAGNET TORQUE CHARACTERISTIC CURVE OF POLARIZED MAGNETIC SYSTEM 極化磁系統永磁力矩特性曲線(xiàn)形狀的分析與研究
- VIRTUAL DESIGN OF PERMANENT MAGNET REVERSION LINE'S STARTING POINT IN POLARIZED MAGNETIC SYSTEM BASED ON FINITE ELEMENT 基于有限元法的極化磁系統永磁回復線(xiàn)起始點(diǎn)的虛擬設計
- Hangzhou Permanent Magnet Group Co., LTD. 杭州永磁集團有限公司。
- Permanent Magnet Lifter is a kind of lifting gear. 永磁起重器是起重工具的一種。
- EXPLORATION OF THE STARTING POINT OF RECOIL LINE OF PERMANENT MAGNET DECIDED BY THE WORKING STATUS OF THE POLARIZED MAGNETIC SYSTEM 決定于極化磁系統工作狀態(tài)的永磁回復線(xiàn)起始點(diǎn)的探討
- Keywords MRI;magnet system;permanent magnet;passive shimming;active shimming;shim coils;FEA;magnetic induction intensity;magnetic field homogeneity; 磁共振成像;磁體系統;永磁體;無(wú)源勻場(chǎng);有源勻場(chǎng);勻場(chǎng)線(xiàn)圈;有限元分析;磁感應強度;磁場(chǎng)均勻度;
- A bar on horseshoe magnet is called a permanent magnet. 棒形或馬蹄形磁體稱(chēng)為永磁體。
- A novel permanent magnet in-wheel motor control system based on DSP for a micro EV is presented. 本文設計了一種基于DSP的專(zhuān)用于短距離運輸的微型電動(dòng)車(chē) (MicroEV)的永磁無(wú)刷輪轂電機控制系統 ,提出的控制策略是進(jìn)行電壓控制的同時(shí)進(jìn)行對應于加速踏板踏位的電流預測控制 ;
- The electric drive system, dubbed Hi-Pa Drive, packs four permanent magnet brushless motors with one in each wheel. 電動(dòng)驅動(dòng)系統，被稱(chēng)為高新技術(shù)壩道，包四永磁無(wú)刷電機在每個(gè)車(chē)輪。
- Slowly move the permanent magnet in a circle above the compass. 在指南針上方,繞著(zhù)圓圈慢慢地移動(dòng)永久磁鐵。
- Key technologies in making permanent magnet motor were introduced. 介紹了永磁電機制造中的關(guān)鍵工藝。
- DEVELOPMENT OF CXY CYLINDRICAL RARE EARTH PERMANENT MAGNETIC SEPARATOR WITH WIGGLING MAGNETIC SYSTEM CXY稀土永磁搖擺磁系筒式磁選機的研制
- Objective: To develop a rapid and automated shimming method in permanent magnet MRI system. 36T永磁開(kāi)放式磁共振成像MRI系統上發(fā)展實(shí)現一種快速動(dòng)態(tài)自動(dòng)勻場(chǎng)技術(shù)。
- 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. 方法應用0.;35T永磁MRI系統;對111例腦部MRI受檢者分別使用FLAIR與常規FSE T2WI及DWI序列進(jìn)行對比分析。
- Direct torque control(DTC)of permanent magnet synchronous motor(PMSM)was research,and a PMSM DTC system based on TMS320LF2407 was developed. 對永磁同步電動(dòng)機直接轉矩控制運行機理進(jìn)行了研究。 在此基礎上開(kāi)發(fā)了一套基于TMS320LF2407的永磁同步電動(dòng)機直接轉矩控制交流調速系統。
- In this paper,the maximum torque per ample(MTPA) control in permanent magnet synchronous motor(PMSM) direct torque control(DTC) driving system was studied. 在永磁同步電動(dòng)機直接轉矩控制和最大轉矩電流比控制理論基礎上,研究了永磁同步電動(dòng)機直接轉矩控制驅動(dòng)系統最大轉矩電流比控制的實(shí)現。
- 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. 針對交流永磁同步電動(dòng)機(PMSM)多變量、強耦合、非線(xiàn)性的特點(diǎn),設計了狀態(tài)反饋線(xiàn)性化控制器,用于速度環(huán)的調節。
- The headphone features a neodymium magnet system for accurate reproduction and balanced sound. 此款耳機的特色是釹磁鐵系統能夠精確的再現和平衡聲音。
- 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. 永磁同步電機直接轉矩控制受定子電阻變化影響,進(jìn)而影響調速系統的精度。
