dc point 中文意思是什麼

dc point 解釋
直流點
  • dc : ＝1 direct current 直流電：a DC generator 直流發電機。2 District of Columbia 哥倫比亞特區〈美國首...
  • point : n 1 尖頭，尖端；尖頭器具；〈美國〉筆尖；接種針，雕刻針，編織針；小岬，小地角；【拳擊】下巴。2 【...
  1. After analysing several kinds of light - weighting structures through ansys, hexagonal speculum structure is confirmed. in the aspect of the controling of speculum, the paper adopts the brushless dc motor which is partial assembled to drive the point speculum and the inductosyn as angle measuring component is selected, the ad2s80a the system is used to get directly angle and angular velocity. double closed - loop speed and position control is designed, as the pid control is the well - developed algorithm, which can achieve stable rotation and precise position control

    在指向反射鏡的擺動控制方面，採用低速性能好的分裝式直流力矩電機作為指向反射鏡的驅動電機，並採用感應同步器作為角度測量元件，運用軸角轉換器ad2s80a進行角度和速度的輸出，採用技術成熟的pid控制方案，進行速度和位置雙閉環控制，以實現指向反射鏡轉動速度的平穩性和位置的精確性。
  2. In the thesis, a signal processing scheme of polarization - insensitive fiber optic michelson interferometric magnetic sensor is described : making the interferometer work near the quadrature with closed loop controlling working point method, the fundamental frequency component of the magnetic field sensing signals can be detected to measure the input direct current ( dc ) magnetic field by phase sensitive demodulation

    本文主要介紹了偏振無關光纖michelson干涉型微弱磁場傳感器信號處理的方案:通過閉環控制工作點演算法使干涉儀工作在正交工作點處，再利用相敏檢波演算法提取傳感器輸出信號的基頻分量，以測量直流磁場的大小。
  3. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
  4. The paper proceeds from the transient equation for voltage and torque, analyze the electromechanic time constant of permanent - magnet dc servomotors based on the theory, and compare with the several testing methods which are used normal in the engineering, point out the difference and applying area also for the testing error which is led to possibly

    摘要為了準確評價伺服電動機的動態性能指標，從電機的電壓、轉矩平衡方程式出發，在理論上對永磁直流伺服電動機的時間常數進行了分析探討，並對工程實際中常用的幾種測試方法進行分析和比較，指出其差別和適用范圍以及可能造成的測試誤差。
  5. 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。
  6. 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。
  7. The 1769 - ob32t digital output module is a 32 - point 24v dc module

    1769 - ob32t數字輸出模塊是一款32點24伏的直流電模塊。
  8. Also, cathode bias circuits ( with bypass capacitors ) are not very successful, since for dc bias purposes, the cathode resistor presents a high dc resistance equivalent at the anode, and the quiescent point is not very stable

    而且，陰極偏壓電路（帶旁路電容）也很難成功，因為直流偏壓的原因，陰極電阻在屏級上表現出很高的等效直流電阻，這樣靜態工作點很難得以穩定。
  9. - the focal point of this paper is studying the problem of cargoes ? weight measurement, besides the component of mechanical system, the component and control of electric - control system, the full - digital dc speed adjustment system and the hardware and software design of plc control system. this paper puts forward the project of current static measurement method and corrects it with acceleration dynamic measurement

    本文除分析介紹了集裝箱橋吊的機械繫統組成、電控系統的組成及控制、全數字直流調速器以及plc控制系統的軟硬體設計外，重點研究了集裝箱裝卸橋中的貨物稱重問題，提出了應用電流靜態測量法的稱重方案，並且採用了加速度動態測量法對其進行動態校正，在實際應用中取得了令人滿意的效果。
  10. 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。
  11. Amendment 1 - insulating and sheathing materials of electric and optical cables - common test methods - part 5 - 1 : methods specific to filling compounds - drop point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive components - permittivity at 23 c - dc resistivity at 23 c and 100 c

    電纜和光纜用絕緣和護套材料.通用試驗方法.第5 - 1部分:填充復合物的專用方法.滴點.油分離.較低溫脆性.總酸值.無腐蝕性成分. 23時的介電常數. 23和100時的直流電阻率.修改件1
  12. In the design of the rf front - end, the effect of the low voltage power supply must be considered since the low voltage power supply limits the voltage swing of the circuit nodes and may affect the dc operation point, power gain and linearity of the rf front - end

    本論文實現的收發機射頻前端採用了1 . 8v的電源電壓，射頻前端各模塊的設計都考慮到了低電源電壓對直流工作點、增益和線性度的影響。
  13. Gdi ( graphical device interface ) is the kernel module of graphics subsystem in gui and it insulates gui application program from difference among output hardwares. detailed design and implementation of gdi with dc ( device context ) mechanism is studied from the point of view of 00

    Gdi作為嵌入式gui的圖形子系統核心模塊，通過引入設備上下文機制，運用面向對象技術，隔離上層應用程序和不同特性的輸出設備，從而達到與設備無關圖形操作的設計目標。
  14. In this dissertation genetic arithmetic is used to find periodic fixed point of dc / dc converter system. while a new crossover operator is submitted to accelerate the convergence speed of ga

    本文首先應用遺傳演算法來求取dc / dc變換器系統的不穩定不動點，同時提出一種新的雜交運算元，以解決演算法收斂慢的不足。
  15. To reduce the cost of the brushless dc motors, and advance the performance of the brushless dc motors, the way of designing the brushless dc motors is very important. the brushless dc motors often were design by magnetic circuit. the dynamic operation point and static state operation point were gained by the alnico operation curve

    如何更好地設計、分析無刷直流電機，以降低成本，提高無刷直流電機性能，分析方法越來越重要，傳統方法一般是採用比較簡單的磁路法，用磁鋼工作圖，計算靜態及動態的工作點。
  16. The following is the main point : based on the operation principle of the ps - fb - zvs - pwm dc / dc converter, the thesis researches the transient operation of the ps - fb - zvs - pwm dc / dc converter with a saturable inductor, and comprises the characteristic between them, and verify theory analysis above by computer simulations

    本論文研究的主要內容如下：論文在分析移相控制零電壓開關全橋變換器工作原理的基礎上，對帶飽和電感的移相控制零電壓開關全橋變換器的暫態工作過程進行了研究，並對它們之間的特點進行對比，模擬驗證了上述理論分析。
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