displacement current 中文意思是什麼

displacement current 解釋
位移電流
  • displacement : n 1 轉位，移動；取代，置換；（人的）流離失所。2 撤換，免職。3 【機械工程】（活塞）排氣量；【航海...
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  1. The displacement current mechanism is operative only for capacitors under reverse bias or very weak forward bias conditions which maintain a space-charge layer.

    位移電流的機理只對反向偏壓或要維持空間電荷層所需要的非常弱的正向偏壓條件下的電容器才有用。
  2. As a result, the electromagnetic field intensity is changed accordingly and fluctuating current in the damper coil is created. damping force is mostly produced because of the phase difference between fluctuating current and displacement of rotor. the formulas of fluctuating current and damping coefficient are deduced theoretically, and the calculated results are consistent with the experimental results

    通過分析發現電磁阻尼器線圈內由於轉子渦動時變化的磁場而產生的波動電流與轉子位移間的相位差是產生阻尼的主要原因，推導了波動電流、阻尼系數的計算公式，並通過實驗展示了被動式電磁阻尼器的阻尼效應。
  3. The probe ' s linearity, temperature and dynamic characteristics are analyzed base on principal theory of eddy - current displacement sensor, such as the influence of the coil q value to the linearity characteristic, influence of the diameter of coil to the linearity characteristic, influence of coil resistance to the temperature characteristic, influence of the measuring coil to the syntony loop

    在介紹渦流位移傳感器的基本理論的基礎上，分析了傳感器探頭線性特性、溫度特性、動態特性的影響因素。從探頭線圈q值對線性特性的影響；探頭直徑對線性的影響；探頭線圈電阻對溫度特性的影響；激勵信號溫度特性的影響：檢測線圈?振迴路動態響應特性等方面分析並提出製作高質量傳感器探頭的改進措施。
  4. Because most of the components in ambs are of the nonlinear characteristics, the dynamics in ambs is very complicated. the electromagnetic force is a nonlinear function with respect to the displacement of the rotor and the controlling electric current

    主動式電磁軸承（ ambs ）被廣泛地應用於工業和航空航天工程中，但由於電磁控制力是被控對象的位移和控制電流的非線性函數，因而構成了一個非線性機電系統。
  5. By constructing the geometrical model of a certain underground single arm type pantograph and applying the translation of pantograph - head balancing bar and the perpendicular displacement of pantograph in the direction of the movement of locomotive while raising pantograph as the objective which must satisfy the demands of locomotive ' s stable current collection, this paper applied the multi - objective optimization based on the genetic algorithms to design the pantograph mechanism

    摘要在建立某地鐵單臂受電弓簡化幾何模型的基礎上，根據列車平穩受流對受電弓提出的各項要求，以受電弓升弓時機車前進方向上的縱向偏移量和弓頭平衡桿的平動為目標，以受電弓正常升弓所需升弓轉矩等為約束，運用基於遺傳演算法的多目標優化技術，對該型受電弓機構進行了優化，得到了使受電弓運動性能達到最優的幾何參數。
  6. The bias magnetic field of the bias coil driven by bias current and small signal test current, results in the induced signal of the control coil. the terminal voltage of the control coil is detected by the test circuit. then the signal containing the information of rotor displacement is obtained, from which we can get the dc voltage signal proportional to the rotor displacement through half - wave rectification circuit and low pass circuit. this dc signal is put into a pid controller to get the control signal of the rotor displacement

    偏置測試電路向偏置線圈輸入偏置電流和小信號測試電流，兩者產生的偏置磁場在控制線圈產生感應信號，檢測電路檢測控制線圈端電壓並提取含有轉子位移信息的電壓信號，該信號經半波整流電路和低通濾波電路后得到與轉子位移成正比例的直流信號，再由pid控制器轉換為轉子位移的控制信號，最後控制信號輸入功放電路產生控制電流，實現閉環控制。
  7. The steady - state errors of current closed loop system with pi current regulator in stationary and synchronous frames are compared using complex vectors. also, the corrector of rotor displacement control is studied by the root locus method

    應用復合矢量概念，對比了靜止坐標系和同步旋轉坐標系pi電流調節器組成電流閉環系統的穩態誤差，並用根軌跡法對轉子位移控制系統的校正環節進行了研究。
  8. Magnetic field of circular flat capacitor and magnetic effect of displacement current

    圓形平板電容器的磁場與位移電流的磁效應
  9. Speed of charge and distribution of displacement current

    電荷的運動速度與位移電流的分佈
  10. We calculated the surface subsidence, horizontal displacement, incline, and current curvature using the groundwater drawdown, conical depression influence radius of water cone and ground property

    根據地下水降深、降落漏斗影響半徑、巖土工程地質性質，計算降水引發的地表沉降值、水平移動、傾斜、曲率現狀值。
  11. In the paper, based on polarized light detecting method and faraday magneto - optical effect, a new displacement sensor system, " displacement - current comparator " is first presented

    本文提出了一種新型位移傳感器：基於馬呂斯定律和法拉第旋光效應的電流位移比較儀。
  12. Now, with the rapid development of computer and electronics, there have been a great progress in the field of input / output device technology. among this field, pci has been a current standard interface of pc. and in order to accommodate the development of operating system, wdm has been a driver model adopted by industry generally. at the same time, in the respect of sensor ’ s application, a high precision and high integrated incremental rotary encoder has been an outstanding one among the displacement sensors. meanwhile, eda technology and cpld / fpga chip applied in the signal processing circuit are approved by a great number of engineers who are engaged in designing the electronic device

    目前，隨著計算機技術和電子技術的飛速發展， i / o設備介面控制技術領域有了長足進步。其中， pci介面成為主流的微機標準介面，而與操作系統平臺的發展相適應， wdm已成為業界普遍採用的驅動程序模式;同時，在傳感器應用方面，高精度、高集成的增量式旋轉編碼器已是位移型傳感器中的佼佼者，而eda技術和cpld / fpga器件在信號處理電路中的應用被廣大電子設計人員所認可。
  13. To reduce the inductor and the phase displacement between the input current and the input voltage simultaneously, multi - level ( ml ) converters are adopted as the pfc topologies in this thesis

    為了同時減小電感和輸入電流與輸入電壓間的相位差，本文提出採用多電平變換器作為pfc變換器的拓撲。
  14. The influences of the pre - stress on the working characteristic of the actuator are analyzed by the measurement of displacement. a numerical current source with alternative working mode and current range is manufactured to provide program - set steady current for the drive coil

    單晶材料消除了晶界對疇壁移動的影響，具有很好的低場下的位移輸出能力，這為微位移致動器的研製奠定了很好的基礎。
  15. In this paper, the three level fortification criterion, two stage design method and the elastic response spectrum theory are adopted, and the program of nba ( the program of nonlinear - aseismic analysis for beam bridge ) is used to calculate. through gathering, analyzing and calculating a lot of bridge design materials, this paper induces a simple way to calculate the relative displacement of the beam and the pier, and then according to the current design method, it concludes a better design principle of the supporting length of the beams. at the same time the dynamics is adopted to put forward the design method of the carrying capacity and the lengthen of prestress wire ( steel bar ) falling - off prevention structures of highway bridges

    本論文採用三水準設防、兩階段設計方法、彈性反應譜計算理論，運用橋梁結構非線性地震響應分析程序nba （ theprogramofnonlinear ? aseismicanalysisforbeambridge ）進行計算；通過收集大量的實橋設計資料，經分析計算，歸納總結出計算上下部結構相對位移的簡便計算方法；並綜合國內外的經驗值，提出梁的支承長度se的設計原則；同時運用動力學突加荷載的原理，推導分析了預應力鋼絞線式（鋼棒連接式）落梁防止裝置設計承載力的計算方法和設計伸長量s _ f的取值；最後本文通過實橋計算，說明了落梁防止系統設計的方法。
  16. This platform can detect geometry ( length, angle ), electricity ( current, voltage ) and mechanism ( shake, speed, acceleration, displacement, pressure ), it can analyze signal and process data too

    即具有對幾何量（長度、角度） 、電量（電流、電壓） 、機械量（振動、速度、加速度、位移、壓力等）的檢測功能，同時具備信號分析與數據處理能力。
  17. When it comes to the research about the post - liquefaction behavior of saturated sand, the situation is not so famous. the current research is supported by the national science foundation project of large ground displacement due to seismic liquefaction ( no. 59809004 ), and in this thesis the basic aspects about the post - liquefaction behavior of saturated sand has been thoroughly investigated. the main contents of the current research are as follows : in order to investigate the behavior of saturated sand, a multi - functional tri - axial test equipment has been designed

    飽水砂土地震液化引起的地面大變形會對液化區的各種結構產生災難性的破壞，在過去的幾次大地震中均發現有因地面大變形而導致的破壞現象，但目前對該問題的研究較為欠缺，有關飽水砂土液化問題現有的研究基本都局限在初始液化之前，在飽水砂土地震液化的影響因素、產生的機理及條件、液化勢的判別等方面積累了大量的研究成果，而液化后問題的研究才處于起步階段。
  18. After the discussion of the numerical simulation method based on the fdtd method and the pml technique, the motions of the charges and the electrical field lines were first employed to describe the radiation procedures of the pulse electromagnetic waves. then the causes of how the charges are accelerated and how the motion status of the charges are maintained were further studied from the angle of interaction of charge and field. after these analyses, it was pointed out that the pulse radiation is due to the suddenly occurred time - varying electrical field ( displacement current ) in the open space. this view was further evidenced by two examples : one is the partly resistance loaded antenna, the other is the partly curved antenna. the radiation procedures of the pulse electromagnetic waves of many different situations were simulated throughout this paper with the contours and waveforms of electric field given. these figures are very helpful to the understanding of the radiation mechanism of the pulse electromagnetic waves

    在討論了基於時域有限差分法和完全匹配層技術的數值模擬方法之後，首先從運動電荷和電力線的角度直觀地描述了脈沖電磁波的輻射過程，然後進一步從場與電荷相互作用的角度分析了天線上電荷是如何被加速以及如何維持其運動狀態的，指出了開放空間中突然出現的時變電場（位移電流）是脈沖電磁波輻射的根本原因.文中還對局部電阻加載的天線和局部彎曲的天線進行了研究，以進一步說明上述觀點.對多種情況下的脈沖輻射過程進行了數值模擬，並給出了電場的等高線和空間波形圖，這些圖形對理解脈沖電磁波的輻射機理非常有益
  19. The conclusion is that under the neutron and 7 - ray synthetical irradiation environment of a reactor, ionization effects of neutron on the vlsi made with cmos technology are weak, and that the displacement effects of neutron induces the decreases of mobility ratio and density of charge carrier, which causes the decrease of the total static current, so it compensates the increase of the static current caused by the synthetical ionization effects of neutron and - ray

    對試驗結果綜合分析得出：在反應堆的綜合輻照環境下，中子電離效應較弱，並且由於中子位移效應引起載流子遷移率降低和載流子濃度降低，使得總的靜態電流下降，從而抵消中子和射線綜合電離導致的靜態電流增長。
  20. The philosophy and methodology of performance - based seismic design ( pbsd ) has been an extensive topic discussed by earthquake engineering experts at home and abroad. in this paper, research work on displacement - based seismic design ( dbsd ) at home and abroad are systematically collected and analyzed. based on the available references of seismic behavior of frame - wall buildings, the method of dbsd of reinforced concrete frame - wall buildings is primarily put forward by taking into account the fault of methods of seismic design in current code. the main contents are as follows : the actual stiffness of frames and seismic walls at different deformation stages are determined from experimental data, and the results are adopted in the dbsd method

    本文對國內外基於位移的抗震設計研究成果進行了較系統的綜述與分析，在已有框架-剪力墻結構抗震性能研究的基礎上，針對現行抗震設計方法的不足，提出了鋼筋混凝土框架-剪力墻結構直接基於位移的抗震設計方法，並對其進行了一些研究和探索，主要內容如下：對國內外框架和剪力墻的模型試驗數據進行分析，量化了剛度退化系數與層間側移角之間的關系，並將其結果引入框架-剪力墻結構直接基於位移的抗震設計方法中。
分享友人
分享到 Line

分享到臉書