磁整波器 的英文怎麼說

中文拼音 [cízhěngbōqì]
磁整波器 英文
magnetic oscillograph
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 整 : Ⅰ形容詞1 （全部在內; 完整） whole; all; complete 2 （整齊） neat; tidy; orderly Ⅱ動詞1 （整理; 整...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  1. This paper theoretically analyses the armature current and magnetomotive force in ac exciter of brushless synchronous machine with rotating rectifier. under the normal or fault conditions of rotating rectifier, the mathematical expressions of the armature current, the m. m. f and induced electromotive force are approached

    本文通過對旋轉整流器在正常與故障狀態下的交流勵磁機電樞電流和電樞電勢作了初步的理論分析，推導出旋轉整流器在正常與故障狀態下電樞電流、空間諧波合成磁勢及其感應電勢的數學表達式。
  2. A design adding a dc chopper after the triphase rectification was given to reduce the peak of the pulse of voltage, aiming at the characteristics that the magnitude of the rated voltage of permanent magnet synchronous motor ( pmsm ) is far below that of the power supply, also the electric parameters of the devices were given

    針對專用永磁同步電機額定電壓大大低於電網電壓這一特點，為降低電機上承受的峰值脈沖電壓，設計了在三相整流之後增加一級直流斬波器並給出了相應的電氣參數。
  3. 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。
  4. The generator is verified to be of well performances by experiment. the third part concerns the control system of pm generator in vehicle application by commutating and inversion. considering the development of future power supply of auto electric system and the economizing on energy, the multi - voltage power supply system for future autos power supply system is introduced, and the design is given in detail

    最後，結合現代電力電子技術，利用整流橋、逆變器、 mosfet等元器件設計並實現了車用永磁發電機恆壓輸出控制；從未來汽車電氣系統的發展方向和高效節能方面考慮，提出未來汽車的多電壓供電系統的典型配電模型，並對該模型進行具體設計，實現多電壓供電的功能，並給出了控制線路中各主要部分的波形。
  5. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  6. Meanwhile, fully - controlled igbt enables reversible flow of field current and reduce in the size of filter elements of main loop, so that the complete of device becomes smaller and lighter

    而全控式的igbt不僅可實現勵磁電流的可逆運行，而且由於提高斬波頻率，使主迴路濾波器件的體積大大減少，從而使整個裝置體積減小、重量減輕。
  7. The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics

    採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。
  8. To satisfy the experiment request, the equipment generating magnetic field and the angular instrument are improved. for light wave from semiconductor laser is infrared wave in the experiment, the calibrating measurement utilizing visible light from he - ne laser is used. firstly the light path is adjusted using visible light roughly

    在搭建系統時，根據實驗要求對磁場儀（小磁場時的穩定性）及摘要第2頁測角儀（測量精度）進行了改進；在調整光路時， （又據使用的紅外激光光源的特點，採用了先利用he ne激光器的可見光波粗略校準光路，然後換用半導體激光器精確校準光路的方法。
  9. Based on the vector radiative transfer theory and the characteristics of the sar technology, several sub - models for rice backscattering are constructed, including the leaf scattering model, the leaf extinction model, the trunk scattering model, the trunk extinction model and the water reflection model. then an integrated model for the first - order scattering mechanisms of rice, including all the main physical processes, is achieved

    針對合成孔徑雷達sar的技術特點，以水稻為研究對象，從矢量輻射傳輸理論vrt出發，通過模擬水稻主要器官稻葉和稻桿對電磁波的散射衰減作用等物理過程，建立了一套完整的水稻一次後向散射作用的物理模型，用以模擬水稻層的後向散射系數
  10. In a book written by an electronics expert who once participated in the us star wars program, the author discussed his findings in his studies on several fallen ufos unidentified flying object. according to him, ufos do not look very big from the outside, but after entering them, one might spend twenty minutes walking without reaching the opposite end due to a conversion of time and space. unlike an aircraft cockpit with dashboards and maneuvering devices, the ufos have only a few seats, surrounded by walls which themselves serve as jumbo tv monitors

    他在對多種墜落的幽浮外星人飛行器考察研究時發現，從外面看幽浮並不很大，但進去后卻走二十多分鐘走不到頭時空轉換，而且裏面沒有像飛機駕駛艙內那樣眾多的儀表及操縱裝置，只有幾個坐椅，四周的墻壁就是大屏幕觀測電視，內部也沒有復雜的集成電路，只有大的晶體塊，整個飛行器完全是在外星人頭腦發出的電磁波控制下運行。
  11. Firstly, the voltage sample signals from ac exciter stator coil were de - noised and filtered by means of decomposition of the wavelet function. secondly, the character frequency region of the rotating rectifier fault was selected clearly with wavelet package decomposition and reconstruction

    先對交流勵磁機定子磁極線圈電壓采樣信號進行消噪濾波，再通過小波包分解和重構進行特徵頻率提取，建立了表徵旋轉整流器故障的特徵向量。
  12. Guidance information on the application of capacitors, resistors, inductors and complete filter units for radio interference suppressions iec 60940 : 1988

    抑制電磁干擾用電容，電阻，電感器及整套濾波裝置的使
  13. Today, mw wind generators substitute 600kw generators gradually and become the popular units of international market of wind power generation. the trends of units are variable speed constant frequency and large - scale and pitch control. there are many different generators which are variable speed constant frequency generator. in this paper the unit is fully - fed magnet wind turbine generator. the magnet wind turbine generator grid - connected inverter is the key component of connected system. the main function of this component is inverting the dc to three - level volage and connecting the electric net

    實現變速恆頻發電的方法眾多，本文研究的是較常用的一種方案。該方案採用直驅永磁風力發電機通過變頻器直接連接到電網。永磁風力發電機並網逆變器是並網發電系統的核心部分，其主要功能是將經過整流、斬波升壓后的直流電逆變成三相交流電，並送入電網，實現並網。
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