直流電位 的英文怎麼說

中文拼音 [zhíliúdiànwèi]
直流電位 英文
dc potential
  • 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...
  • 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...
  • 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...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 直流 : direct current （dc）; constant current; steady current; continuous current; zero frequency curre...
  1. Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor

    在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。
  2. Position control of d. c. motors has been done by means of pulse width modulation.

    直流電機位置用脈沖寬度調製法控制。
  3. Measurement at full range setting for a dc current calibrator with not more than 3 ranges

    一臺不超過三個量程的直流電流校正器全量程定位測量。
  4. A novel low mechanical hysteretic ceramic capacitive pressure transducer has been made, by using of ceramic sealing technology ; integrate circuit ( ic ) technology and thick film plane fixing circuit technology. this transducer is made of a deformable ceramic diaphragm and a ceramic base plate, between which has an air cavum. a coaxial gold electrode was fired onto the diaphragm and the base plate

    本文利用新型陶瓷技術、集成電路技術和厚膜平面安裝電路技術，採用零力學滯后的陶瓷和陶瓷密封材料進行設計製造了一種非充液乾式的電容式壓力傳感器，該壓力傳感器由較厚的陶瓷基體和較薄的陶瓷膜片構成，中間形成一空氣介質腔，在基座和膜片之間內置同軸的雙電極，組成兩個電容，當膜片承受壓力時發生位移，使電容量產生變化，經後置處理電路直接轉換為可輸出的直流電壓信號。
  5. For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions

    針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機，本文提出一種基於六個離散位置信號的自同步svpwm （電壓空間矢量法）控制方法，用以削弱電磁轉矩脈動，分析了實現這種方法的主要控制環節，包括起動時電壓空間矢量的初始定位，阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。
  6. Digital signal processor ( dsp ) combined with repm bldcm, which build up a dc adjustable speed system, achieve to control multiple motor speed, positive and negative rotate, protect and fault exemine by a true single chip. design and present a electromagnetism scheme of repm bldcm used in electromotion chair drive system. select electronical components and chips in the drive board by contrast with variant drive mode. design the drive board principle picture, make a drive board pcb and debug it. design a principle picture with dsp core. workout the motor control code introduced popular programme modle. test the programme reliability and control performance by linking tms320lf2407 evm, pc, drive borad and the bldcm. the bldcm swatch is prepare experiment

    本論文闡述了方波驅動稀土永磁無刷直流電動機的原理及數學模型；設計並給出了一種電動座椅用稀土永磁無刷直流電動機的電磁設計方案；對電機採用何種驅動方式進行了對比分析；對驅動電路進行了元器件選型、原理圖設計、制板及調試；有針對性的闡述了dsp在本系統應用中所涉及到的功能模塊；設計了以dsp為核心的控制電路原理圖；以模塊化的軟體編程思想編制了電機控制軟體；通過tms320lf2407目標板、上位機、驅動板及電機的聯調，證明了系統可行。
  7. The speed - independent position function of the rotor was given by analyzing the phase current and phase voltage of the permenent magnet brushless dc motor, using the powerful operation function of dsp

    利用dsp的強大運算功能，通過分析永磁無刷直流電動機的相電壓與相電流給出轉子速度無關位置函數。
  8. Sb2015 - 3 precision decade dc resistance box adopts high voltage glass glaze resistors and special high voltage seal switch. its electric performance is very stable and insulation intension is very high. the resistance value can be adjusted under the condition of ceaselessly opening voltage ( note : the using switch should not be at the point of 0. ) it is easy to operate and suitable to be used to calibrate insulation resistance meter, and suitable to be used as high resistance standard

    3型精密十進位直流電阻箱採用高壓玻璃釉電阻器及獨特的高壓密封開關，電性能穩定可靠、絕緣強度高、可在不斷開測試電壓的條件下調節電阻值（正在使用的那隻開關不處在「 0 」位置時） 、操作方便，適用於檢定/校準絕緣電阻表，也可作為高阻標準。
  9. Sb2015 - 2 precision decade dc resistance box adopts high resistance superfine glass silk and special high voltage seal switch. it electric performance is very stable and insulation intension is very high. the resistance value can be adjusted under the condition of ceaselessly opening voltage ( note : the using switch should not be at the point of 0. ) it is easy to operate and suitable to be used as dc resistance standard to calibrate insulation resistance meter

    2型精密十進位直流電阻箱採用高阻玻璃微細絲電阻器及獨特的高壓密封開關，電性能穩定可靠、絕緣強度高、可在不斷開測試電壓的條件下調節電阻值（正在使用的那隻開關不處在「 0 」位置時） 、操作方便，適用於檢定/校準絕緣電阻表，也可作為直流電阻標準。
  10. Method and technique of using 3 - electrode electrical sounding at different positions in a roadway for detecting the location and water content of collapse - column was put forward

    摘要提出了用不同方位巷道三極直流電測深法探測陷落柱位置及其富水性的技術。
  11. At last, it deduced a new improvement method from the theories, and make use of a new physical concept ? the independent of speed function for accuracy checking up the turns sub - position and the communication point so as to control sensorless brushless dc motor with the breadth regulating - speed scope from zero to high speed. based on the function, it will research the new control method

    最後，從理論上推導了新的改進方法，並利用一個新的物理概念? ?與速度無關的位置函數g （ ） ，其能高精度檢測出轉子位置和換相點，以此來控制無刷直流電機，實現電機從零轉速到高轉速的寬速度范圍調節，在此基礎上研究了應用這種新的位置函數的控制策略。
  12. In this chapter, the method of bldcm rotor position detection is first discussed. then the principle and algorithm of bemf zero crossing point detection is explained. in succession, the chapter dissertates the software realization of the bemf zero crossing point detection algorithm, the software disturbance filter and the modification of phase displacement, and the software realization of commutation point

    在這一章中，先簡述了無刷直流電機的轉子位置器檢測方法；然後論述了反電動勢過零檢測原理和演算法以及該演算法的軟體實現、軟體濾波和相移修正、換相點的軟體實現；最後對軟體開環換相起動策略作了詳細論述。
  13. The dc distributor shelf play a important role in transformer substation, power plant, big and middle plants etc. it supply mainly to the controled, protected and communicate equipment, automechanism, manipulaor and adjusted machine. the same time it may as accident lighting power supply, so its performance and reliability affect directly the running safely of whole power supplying system

    直流電源屏作為供電電源在變電站、發電廠、大中型廠礦企業等供電系統中佔有很重要的地位，主要用於向控制、保護、通信設備、自動裝置操作機械和調節機械的傳動機構供電，同時還可以作為獨立的事故照明電源，所以其性能及可靠性直接影響到整個供電系統的正常安全運行。
  14. On the base of roundly analyzing and studying the running mode of the sensorless bldcm, we explain theories and realizable methods of detecting back electromotive force, phase verdict and phase compensation in detail. in order to improve the timing performance, the control strategy of this system is to use digital speed closed - loop control

    在全面分析研究了無位置傳感器無刷直流電動機運行方式的基礎上，細致闡述了反電勢過零檢測、相位判斷及相位補償的原理及實現方法，並且為了在較寬的范圍內提高bldcm的調速性能，採用了數字式轉速閉環控制。
  15. On the base of ananlysing and studying the run mode of bldcm, we introduce the detecting back electromotiveforce, the method of phase judging and compensation in detail. in order to improve the speeding performance we adopt the digital closed _ loop speed control strategy

    在對無位置傳感器無刷直流電動機運行方式進行全面分析研究的基礎上，詳細的介紹了反電動勢過零檢測、相位判斷及相位補償的原理及實現方法，並且為了在較寬范圍內提高bldcm的調速性能，採用了數字式轉速閉環控制。
  16. But it has the disadvantages of torque pulsation, it ca n ' t achieve accurate position and speed of higher performance

    但是無刷直流電動機運行中存在轉矩脈動問題，對實現更精確的位置和更高性能的速度控制有極大影響。
  17. For the bldcm which has a neither sinusoidal nor trapezoidal back - emf, that is, for a general shape back - emf bldcm, this dissertation proposes a novel id = 0 vector control method. by this method, the iq for a constant torque to produce is calculated through coordinate transformation, and the reference iq is tracked by vector control in the dq0 frame

    對于實際反電動勢波形既非正弦又非梯形波的無刷直流電動機，提出一種新型的任意波形反電動勢無刷直流電動機的i _ d = 0矢量控制方法，通過坐標變換浙江大學博士學位佑文摘要求解產生恆定電磁轉矩所需的q軸電流，並在dqo坐標系下通過矢量控制對q軸參考電流進行跟蹤。
  18. The researcher could use the ansys software to design and analyze the motors who did n ' t know the ansys software very well by the special purpose software packets. the influence of a centralization winding brushless dc motor structural design parameter and magnetic field were analyzed, and a way to achieve the fix position angular force was brought out

    利用上述軟體研討無刷直流電機的定位轉矩的求取方法；分析集中式繞組的無刷直流電機各結構設計參數對磁場的影響，嘗試求取、分析空載漏磁系數，討論如何削弱定位轉矩。
  19. Electrical safety in low voltage distribution systems up to 1 kv a. c. and 1, 5 kv d. c. equipment for testing, measuring or monitoring of protective measures. part 4 : resistance of earth connection and equipotential bonding

    最高可達1 kv交流電和1 . 5 kv直流電的低壓配電系統中的電氣安全性.試驗測量或保護測量監測用設備.第4部分:接地和等電位連接電阻
  20. Based on the application studies of pcm, dcvc, cips and scm in protective coating for long - distance buried pipeline and the characters of long - distance buried pipeline in shandong, the synthetic inspection technology of protective coating for long - distance buried pipeline is proposed

    摘要通過對電磁電流衰減法、直流電位梯度法、密間距電位測試技術、雜散電流測試儀在埋地長輸管道外防腐層檢測上的應用研究，並根據山東省埋地長輸管線的分佈特點，提出了聯合檢測方法。
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