直線電流 的英文怎麼說

中文拼音 [zhíxiàndiànliú]
直線電流 英文
straight line current
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 直線 : 1. （不彎曲的線） straight line2. （急劇的） steep; sharp
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. According to the system technology require, adopting singlechip realize open loop digital control of hdclsm ; using v / f conversion and complex key - control method realize digital setting of system parameter, such as velocity ; using micro - stepping control insure the motor running more smoothly ; adopting debasing speed control method to eliminate the mechanical impact of distance termination effectively ; at the same time, analyzing main power circuits drive circuit and protect circuit of system, completing hardware design and facture and software programming and debugging ; at last, making a whole test in hybrid rotary step motor. the experiment result indicates that this control system reaches the qualities required and run smoothly also

    根據系統技術要求，採用單片機實現了混合式直流直線步進電動機的開環數字控制；利用v f變換和復合鍵控方法實現了系統轉速等參數的數字設定；利用細分控制技術保證了電機運行的平穩性，並進行了波形分析和理論研究；採用單片機軟體降速控制策略解決直線步進電機行程末端的機械沖擊問題；同時對主功率電路、驅動電路和系統保護電路進行了分析，完成了硬體設計、製作和軟體編程、調試，最後在混合式旋轉步進電動機上進行了全面測試。
  2. This paper selects dc double - arm bridge, uses the four - port connection to remove the contact and connection resistances and reduce the electromagnetism interfere. grounding grid conductors fault levels are established during a lot of emulational computations, simulative experiments

    使用直流雙臂電橋，採用四端鈕連接法，可大大降低現場中電磁干擾及引線電阻和接觸電阻的誤差影響。
  3. Current density and electroplating velocity has line relation, but the increscent multiple of electroplating velocity is smaller than that of current density. which indicate that current efficiency decreases with the increase of current density at alcb + lialh4 system. at l - 5a / dm aluminum coating is dense and uniform, especially at 2. 5a / dm

    電流密度與電鍍速度兩者近似成直線關系，但電鍍速度增大的倍數比電流密度增大的倍數要小，說明在alcl _ 3 + lialh _ 4體系中隨著電流密度的提高，電流效率逐漸降低。
  4. The modulating signals of firing delay angle at the rectifier and firing lead angle at the inverter, and the excitation voltage are chosen to be control variables. the offset of the current of dc line and the extinction angle and the power angle of generator are chosen to be control outputs. then a nonlinear controller is designed for the system under study according to direct feedback linearization theory

    以整流側觸發延遲角的調節信號、逆變側觸發超前角的調節信號以及發電機勵磁電壓作為控制變量，以直流線路電流、逆變側關斷角以及發電機功角的偏移量作為目標輸出，用直接反饋線性化方法設計了系統的非線性控制器。
  5. A method of beam control for nfz - 10 industrial irradiation linac

    10工業輻照電子直線加速器束流控制方法
  6. Studies on the optimum beam orbit correction for high energy electron linacs

    高能電子直線加速器束流軌道校正的優化研究
  7. A. c. high - voltage switchgear and controlgear. high - voltage motor starters. part 1 : direct - on - line full voltage a. c. starters

    交流高壓開關設備和控制裝置.高壓電動機起動器.第1部分:直接在線交流起動器
  8. According to biot - savart law, the general expression of magnetic field distribution generated by circular current in space has been calculated in this paper, which further discusses the magnetic field in the plane, the central axis and the far space

    摘要直接由畢奧薩伐爾定律的計算公式，在更為普遍的情況下，計算出了圓形線電流在全空間的磁場分佈，並進一步討論了其在中心軸線上、平面內及遠區的磁感應強度。
  9. The primary of linear induction motor which drives the metro is installed on the chassis bogie, and because it is quite strict with laying down railway rail to use flat linear induction motor to drive metro, its secondary - - - - reaction board ( called induction board ), which is a kind of compound board of aluminum and steel, is fixed on the rail sleeper between the track. it is the airgap which is a gap between the primary and secondary of lim. the electromagnetic airgap is a very important parameter of lim

    利用有限元法對直線感應電動機二維非線性渦流場進行了數值計算，並在此基礎上，運用電磁場有限元分析的專用軟體ansoftmaxwell2d對單邊型直線感應電動機的瞬態特性進行了模擬分析，得到電機運行過程中的電磁推力、法向力、初級電流、氣隙磁密等曲線，通過改變直線電機參數，分析了電機氣隙對其瞬態性能的影響。
  10. Moreover, an improved method is proposed for the phase current reconfiguration on the basis of the direct current circuit

    提出了一種改進的基於直流迴路母線電流的相電流、相電壓重構方法。
  11. The system takes both advantages, the former is fast and convenient characteristics of dasylab in building a control and measure system, and the latter is the powerful program function and abundant control button of labwindows / cvi. it can acquire, analysis and save the real - time data in the experiments of the lim and electromagnet meanwhile, it can control the start / stop of the lim. electromagnet and dc motor, as well as it can control the change of the voltage and frequency of the lim. the exciting windings voltage and rotor windings voltage of the dc motor

    整個測控系統利用了dasylab組建採集分析系統的簡單快捷和labwindows cvi豐富的控制項與強大的編程功能，將兩者的優點有機的結合起來，可以完成直線電機及電磁鐵試驗中的數據採集、分析、存儲，並且可以控制試驗中直線電機、電磁鐵、直流電機的啟動與停止，對直線電機繞組電壓、直線電機繞組電壓頻率、直流電機勵磁繞組電壓、直流電機電樞繞組電壓、電磁鐵繞組電壓的大小進行控制。
  12. The authors first infered the boundary condition for line source, then realised the forward calculation with finite - difference method

    針對垂直有限線源，首先推導了線電流源的邊界條件，利用有限差分實現了三維地電場的正演。
  13. By magnetic field analysis for the stage, three formulas reached : one is magnetic road magnetic force calculational formula of magnetic levitation system that except flux leakage, the second is magnetic driving force calculational formula for open magnetic road dc linear motor, the third is magnetic flux density calculational formula for dc linear motor. these formulas make reference for design, analysis and control

    本文對磁懸浮定位平臺進行了電磁場分析，推導出磁懸浮系統不計漏磁的簡單磁路、磁力計算公式和原理樣機所採用的開磁路直流直線電機推力及磁通密度計算公式，為設計、分析及控制提供參考。
  14. Current compensation control strategy for restraining thrust fluctuation of pmlsm

    抑制永磁直線電機推力波動的電流補償控制策略
  15. This paper bases on the linear - motor - driven suspending push - type convey syetem, and emphasizes the control system and the realization of its control strategy

    本文在介紹直線電機驅動的懸式推掛物流傳輸系統的基礎上，著重闡述了其控制系統及其控制策略的實現。
  16. In conclusion, when the current of the winding is increased, the tendency of the end effect - thrust is unchangeable, the no - load end effect is the main part of the pm linear motor ' s end effect

    從以上的分析和計算得出，隨繞組電流幅值的增加，端部效應影響電機推力的波動趨勢不變，空載端部效應是永磁直線電機端部效應的主要部分。
  17. First, this paper not only introduces the basic principle, the history, the category and the control of linear motor but also shows the development of the control system and technology of motor. second, the method of pid control and the technology of pulse width modulation are expatiated, as well as their application in linear - motor - driven servo syetem. third, this paper describes the hardware structure including its operation principle of the control system of the dsp based linear - motor - driven suspending push - type convey system

    文章首先介紹了直線電機的基本原理、發展歷史及其分類方法，並簡單闡述了直線電機的控制方法；然後介紹了電機控制系統及技術的發展，進而分析了pid控制方法和脈寬調制技術，及其在直線電機驅動的伺服系統中的應用；接著介紹了基於dsp的直線電機驅動的懸式推掛物流傳輸控制系統的硬體結構及其工作原理，並闡述了直線電機驅動的懸式推掛物流傳輸系統控制的軟體實現，介紹了各個程序模塊以及速度的檢測方案。
  18. With an introduction of the principle and application of linear motor in shanghai maglev demonstration line and urban mass transit, this paper discusses the problems occurred in the power supply system, and the preliminary solution for decreasing the line resistance and reclaiming the stray current

    摘要介紹了直線電機的基本原理、不同的應用方式及其在城市軌道交通中的應用情況；並就供電系統中存在的變電所較多、能耗較高等問題，提出了如何設法減少線路總阻抗、如何回收利用迷流等初步解決方案。
  19. Firstly, the thesis introduced a eoct scheme that supplied on a special coil. it utilized saturation of special coil to transform form 10a ~ 720a current of busbar to 8v ~ 40v voltage of inductions. after switched to direct current, it supplied the loads of sensor by dc - dc transformations, which is included two + 5v voltages with respective ground and a group of 12v voltage

    該供能方案利用特製線圈的飽和特性，將母線電流大致在10a ~ 720a的電流感應約為8v ~ 40v的電壓能量，利用整流橋將交流電變為直流電后，由dc - dc變換器件將其轉換為兩路不共地的+ 5v和一組12v電壓供給後端傳感頭。
  20. The position servo control system should be studied to improve the performance of the permanent magnet linear synchronous motor ( pmlsm ) which is usually running under bad conditions

    分析了永磁交流同步直線電機的數學模型和控制要求，對4種典型的位置控制器進行了比較研究，對擾動觀測器的結構進行了改進和參數調整。
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