直流阻抗 的英文怎麼說

中文拼音 [zhíliúzǔkàng]
直流阻抗 英文
d. c. impedance
  • 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...
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 抗 : Ⅰ動詞1 （抵抗; 抵擋） resist; combat; fight 2 （拒絕; 抗拒） refuse; defy 3 （對等） contend with...
  • 直流 : direct current （dc）; constant current; steady current; continuous current; zero frequency curre...
  • 阻抗 : [電學] impedance
  1. The elements of the reduced - jacobian matrix are functions of some parameters of the system. for example, effective short ratio, power base ratio, coupling impedance and load flow of the system. for single - infeed hvdc system with a parallel ac line, computer simulations using power system analysis software package ( psasp ) were performed

    用一種簡單的方法可以求得降階雅可比矩陣，由於降階雅可比矩陣的元素都是交直流混合系統中一些參數的代數函數，如有效短路比、功率基準比、連接阻抗和系統潮流等，因此，矩陣的特徵值也與這些參數相關。
  2. 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。
  3. Electrical safety in low voltage distribution systems up to 1000 v a. c. and 1500 v d. c. equipment for testing, measuring or monitoring of protective measures - resistance of earth connection and equipotential bonding

    不超過交流1000v和直流1500v的低壓配電系統電氣安全性.防護測試測量或監測設備.接地和等勢屏蔽接地阻抗
  4. Based on practical application conditions, half - cell potential method, concrete resistance measurement, linear polarization resistance method and etc. 3

    根據現場的實際應用情況，最常用的方法有半電池電位法、混凝土電阻率檢測法、直流線性極化電阻法、交流阻抗法以及地質雷達法等。
  5. Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment

    在windowsnt系統環境和labview虛擬儀器技術開發平臺下，首次利用labview中的直線擬合模塊、指數擬合模塊以及多項式擬合模塊，設計了一種對實驗所得數據進行曲線擬合的方法，對三種擬合方法進行了比較，曲線擬合結果表明，多項式擬合方法相對于其它兩種擬合方法效果更好；根據曲線擬合的結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時機械振動形成的等效輸入阻抗，並由此輸入阻抗確定了磁致伸縮換能器的諧振頻率及其電氣模擬網路參數；最後通過labview提供的網路功能，實現了基於web服務器的磁致伸縮換能器電氣模擬虛擬儀器測試系統，並探討了通過datasocket技術實現該系統網路化的方案。
  6. In accordance with the driving characteristics of ac driving locomotive, the working status of its traction transformer is analysed. the questions that should be considered in the traction transformer design of ac driving locomotive are mentioned. these questions are the large short - circuit impedance of traction winding, higher harmonic current, over - excitation and dc magnetization caused by large variation of the network voltage, etc. some disposal methods are given

    針對交流傳動電力機車的傳動特點，對其中的牽引變壓器的工作狀態進行了分析，指出交流傳動電力機車用牽引變壓器設計時需考慮的牽引繞組的短路阻抗大、電流的高次諧波、網壓波動大可能引起的過勵磁以及直流磁化等問題，同時給出了相應的一些解決方法。
  7. Each unit of transformer is tested in accordance with the following items : winding d. c resistance test. measurement of turn ratio and calibiation of voltage vector relation. measurement of impedance voltage and load loss

    直流電阻測試匝數比測量及電壓矢量關系的校定阻抗電壓及負載損耗的測量空載損耗及空載電流的測量工頻耐壓測試感應耐壓測試絕緣電阻測試局部放電測試外觀和尺寸的檢驗銘牌的檢驗等。
  8. Windings d. c. resistance measurement, measurement of impedance voltage and on - load loss, measurement of no - load loss and on cload current, power frequency withstand voltage test, inductive voltage with standing test, measurement of partial discharge level, inspection of appearance and dimension inspection of name plate

    直流電阻測試匝數比測量及電壓矢量關系的校定阻抗電壓及負載損耗的測量空載損耗及空載電流的測量工頻耐壓測試感應耐壓測試絕緣電阻測試局部放電測試外觀和尺寸的檢驗銘牌的檢驗等。
  9. Impedance - matching balanced traction transformers ( balanced transformers in this paper for short ) are step - down transformers, they transfer symmetrical three phase voltage in primary side to perpendicular two phase voltage in secondary side. they are different from any other transformers, so their short - circuit current analysis and short - circuit test method must be taken into special account

    阻抗匹配平衡牽引變壓器（本文中簡稱平衡變壓器）是一種將一次側三相對稱電壓變換為二次側二相垂直電壓的降壓變壓器，它不同於已有的任何一種變壓器，短路電流的分析計算和短路試驗必須予以重新研究。
  10. The results show that mno which not be modified can not be use as electrode active materials because of its poor electrochemical activity. meanwhile, the rechargeabilify of mno modified by bi and pb is improved. bismuth could prolong the second electron equivalent discharge and lead could improve the first electron equivalent discharge performance

    I44 ）對熱分解產物進行了充放電，循環伏安，恆電流極化， tafe曲線分析，交流阻抗分析，得出未摻雜的mno直接作為電極活性材料，其電化學活性很差，但通過摻bi ， ph進行改性，提高了其可充性， 1的影響主要在於第二電子放電， ph則可以延長第一電于放電
  11. Direct impedance blood flow recorder

    直接式阻抗血流圖儀
  12. Electrical safety in low voltage distribution systems up to 1000 v a. c. and 1500 v d. c. - equipment for testing, measuring or monitoring of protective measures - part 3 : loop impedance

    1000v交流和1500v直流的低壓分配系統的電氣安全.防護測量的試驗測量和監測設備.第3部分:回線阻抗
  13. This paper mainly analysis the function of dc power supply distribution chest and introduce the design of overall project, at the same time analysis the design of electric properties insulation properties 、 di - electric strength as well as the design of primary part

    摘要本文主要分析了直流配電箱的功能，介紹了總體設計，同時對導電性能、絕緣電阻、抗電強度和其中主要零件結構設計等進行了分析。
  14. 1. polybenzidine ( pbz ) was polymerized by using chemical method in organic system and with ( nh4 ) _ 2s _ 2o _ 8 as oxidant, hclo4 as dopant. the electrochemical behaviors of pbz electrode were studied by cyclic voltammetry, charge - discharge test and electrochemical impedance techniques

    1 .用化學直接氧化法在乙腈溶液中，以高氯酸為摻雜劑制備了聚聯苯胺，用循環伏安，交流阻抗，直流充放電對其電容行為進行了研究，聚聯苯胺電極比電容為150f / g 。
  15. The current in the dac ’ s output can drive the load, and the structure can save a buffer consisted of operational amplifier, so the structure can achieve high speed with no close - loop and feedback in this circuit

    該10位分段式電流舵型數模轉換器的輸出端可直接用電流輸出來驅動負載阻抗，省去運算放大器構成的輸出緩沖，整個電路中沒有形成閉環和反饋，因此這種電路結構可以達到很高的速度。
  16. It utilizes zero impedance branch characteristic, combining structure - transform and structure - static short - circuit current calculation method to calculate the short - circuit current directly through the electrical equipment when short - circuit fault takes place at the two sides of the electrical equipment, and settles the problems that the traditional method cannot directly figure out the short - circuit current

    該方法利用零阻抗支路特點，結合定結構和變結構短路電流計算方法，能夠直接求出在電氣設備兩側分別發生短路時，通過電氣設備（如斷路器）的短路電流，從而合理地解決了傳統的故障分析方法不能直接求出流過設備的短路電流的問題。
  17. 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 3 : loop impedance

    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3部分:回線阻抗
  18. Standard test method for d - c resistance or conductance of moderately conductive materials

    中等導電材料直流阻抗或導電性的標準試驗方法
  19. ( 2 ) the compression sensibility of cfrc is discussed by means of d. c. resistance and a. c. impedance and capacity measuring technique

    （ 2 ）用直流電阻法、交流阻抗法和電容法測試了cfrc材料的壓敏性。
  20. The result shows are as following, first, using a. c. impedance measurement to measure the compression sensibility of cfrc can eliminate the polarization effect at the electrode of cfrc specimen and the thermoelectric force of the electrode effectively ; the thermo sensitive effect can be avoided by using little electric current, so the a. c

    結果表明：採用交流阻抗法測試cfrc試塊的壓敏效應可以有效地消除cfrc試塊的電極處的極化效應和電極界面的熱電動勢；採用小電流供電可避免溫敏效應，因此交流阻抗法要比直流電阻法穩定性好。
分享友人
分享到 Line

分享到臉書