波動電流 的英文怎麼說

中文拼音 [bōdòngdiànliú]
波動電流 英文
fluctuating current
  • 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...
  • 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...
  • 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...
  • 波動 : 1 （不穩定） undulate; fluctuate; unsettle; surge; rise and fall 2 [物理學] wave （motion）; wave...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. According to the system technology require, adopting singlechip realize open loop digital control of hdclsm ; using v / f conversion and complex key - control method realize digital setting of system parameter, such as velocity ; using micro - stepping control insure the motor running more smoothly ; adopting debasing speed control method to eliminate the mechanical impact of distance termination effectively ; at the same time, analyzing main power circuits drive circuit and protect circuit of system, completing hardware design and facture and software programming and debugging ; at last, making a whole test in hybrid rotary step motor. the experiment result indicates that this control system reaches the qualities required and run smoothly also

    根據系統技術要求，採用單片機實現了混合式直流直線步進電動機的開環數字控制；利用v f變換和復合鍵控方法實現了系統轉速等參數的數字設定；利用細分控制技術保證了電機運行的平穩性，並進行了波形分析和理論研究；採用單片機軟體降速控制策略解決直線步進電機行程末端的機械沖擊問題；同時對主功率電路、驅動電路和系統保護電路進行了分析，完成了硬體設計、製作和軟體編程、調試，最後在混合式旋轉步進電動機上進行了全面測試。
  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. In many applications a fluctuating dc current is undesirable.

    在許多應用場合，波動的直流電是討厭的。
  4. Dead angle of differential currents is measured when realizing the transformer differential protection based on the dead angle

    在間斷角原理變壓器差動保護中，需要測量差動電流導數波形的間斷角。
  5. A large member of experimental findings was analyzed. the output torque of rera and plate er actuator were compared. the results showed that the torque transferred by ripple actuator is larger decuple than that of plate actuator

    本文通過對大量的實驗數據進行分析，對波紋式與平盤式電流變傳動機構的輸出力矩進行比較，得出波紋式要比平盤式所傳遞的力矩大十倍的結論。
  6. In the same time the output torque can also be measured and controlled rapidly and accurately. due to the complex nonlinear relation between the applied electrical field and the torque, it ' s difficult to set up the model using existing physic and mathematic theories. however, artificial neural network can express discretional nonlinear relation and has ability of study, which provides a new concept and method to solve this problem

    由於波紋式電流變傳動機構的外加電場和電流變液產生的力矩間呈復雜的非線性關系，用現有的物理和數學理論來建模尚有一定的難度，而人工神經網路有表示任意非線性關系和學習的能力，給解決這類問題提供了新思想和新方法。
  7. This paper presents a method that chopping wave is done by switch devices which consist of three - level resistance regulating module and intelligence power module ipm, and which realizes constant - current discharge of storage battery. to achieve the intelligence control of the drive protection and the discharge process of ipm, the paper designs circuit formed by igbt threshold drive pulse pwm signals. ipm fault - blocking protection circuit and microcomputer 80c196. the devices can accurately control the 0 ~ 150a discharge current and the discharge time of the storage battery and calculate the releasing power

    實現蓄電池恆流放電過程智能控制是蓄電池放電裝置發展的必然趨，本文提出了一種通過三極電阻調節模塊和由智能功率模塊ipm為開關器件進行斬波從而實現蓄電池恆流放電的方法。為達到對ipm的驅動保護和放電過程的智能控制，文中設計了igbt門極驅動脈沖pwm信號形成電路和ipm故障封鎖保護電路及由單片機80c196為核心的微機控制器。本裝置能夠對蓄電池進行0 150a放電電流及放電時間的精確控制及釋放容量的計算。
  8. The theories and design principles of each circuit of the spwm three - phase frequency inverter experiment unit are in detail introduced in this thesis. at the same time some experiment results are shown that include the output voltage and current waves when the load is in resistivity, inductivity or asynchronous motor

    文中詳細介紹了spwm三相變頻實驗單元所包含的各電路環節的理論基礎及設計過程，並給出了調試結果，如負載為阻性、感性和異步電動機時，實驗單元輸出的電壓和電流波形。
  9. Through cell ammeter and armature magnetomotive force, we qualitativly analyze that harmonic magnetiv field has influence on motor operating performance, it can ensure whether slot coordination suits well or not

    通過槽電流表和槽磁動勢圖定性地分析電機的諧波磁場對電機運行性能的影響，由此確定電機所選槽配合是否合適。
  10. Superimposed ripple voltage

    附加波動電流
  11. The algorithm is also applied in the broken rotor bars detection in squirrel cage induction machines, which is dependent on detecting the twice slip frequency modulation due to the speed or torque in the stator current, and the rotor bar faults can be detected effectively without some preprocessing

    指出可以利用信號的小波脊線來提取頻率隨時間連續變換的信號的瞬時頻率，並將該瞬時頻率提取演算法成功地應用到異步電動機定子起動電流信號的分析中，有效地提取出了轉子斷條故障特徵。
  12. Become a kind of new electronics circuit - current - mode circuit. it is replacing the traditional design method of the voltage - mode in the high frequency high - speed signal processing realm 。 this thesis mainly discussed the modified second - generation current conveyors based on the current - mode kinds of new cuicuit components, they are stronger modified standard current - mode parts in fuctions on this foundation. mainly including the modified differential difference current conveyor ( mddccii ) 、 the fully balanced second generation current conveyor ( fbccii ) 、 ( full balances ) four - terminal floating nullor ( fbftfn ) and the current differencing buffered amplifier ( cdba ), they are all function very strong standard current - mode parts, they all can provide some circuit functions of better than general operation amplifier, because they have the voltage importation and the current importation, therefore use it since can carry out the voltage - mode signal processing circuit expediently, can also carry out the current - mode signal processing circuit expediently, and have to increase the benefit bandwidth to accumulate more widely than the voltage - mode, but have their advantages more according to the current - mode filter of the modified current conveyor, because it constitutes in brief, the filter wave function is stronger and they are better than in general use operation amplifier of many advantages, be easy to composing for example 、 high speed 、 frequency bandwidth 、 the power supply voltage requests low 、 consume small, the impedance is different from etc. advantages, otherwise they have biggish dynamic range, and flexible circuit synthesize, so they are the best active parts

    從第二代電流傳輸器ccii入手，重點研究了以下幾種改進型的第二代電流傳輸器:改進的差動差分電流傳輸器mddccii 、全平衡第二代電流傳輸器fbccii 、多輸出四端浮地零器ftfn 、全平衡四端浮地零器fbftfn 、電流差分緩沖放大器cdba的電路結構及其模型。然後在此基礎上系統地研究了基於這幾種改進型的第二代電流傳輸器的濾波器的設計方法，主要方法和結果如下:利用mddccii設計了差分式連續時間電流模式低通、帶通濾波器;電流模式跳耦結構考爾低通濾波器;利用fbccii設計了帶通二階節濾波器及電流模式雙二階通用濾波器;設計了基於多輸出端ftfn的電流模式二階通用濾波器電路;通過數字化開關選擇的基於fbftfn的電流模式通用濾波器;設計了基於最少個數電流緩沖放大器（兩個cdba ）的多功能通用電流模式濾波器及其在非理想因素情況下分析。設計濾波器的主要方法是採用級聯設計、運算模擬（信號流圖法）和反饋設計（跳耦法） 。
  13. The epitaxial struture for ld is an ingaas / gaas / algaas ssqw grin sch structure and the width of the array bar ia 4mm. the low theshold current 2. 9a the output power 20w at 17. 5a have been achieved by sioi isolation, ohmic contact and facet coating processes. the central wavelength is 979nm. at the same time, model analyses on the structure of the ssqw ld and the fabrication processes have been made for further research

    激光器的生長結構採用ingaas / gaas / algaas分別限制應變單量阱線性緩變折射率波導結構，列陣條寬為4mm ，通過sio _ 2掩膜，歐姆接觸和腔面鍍膜等工藝，實現了閾值電流為2 . 9a ，驅動電流為17 . 5a時輸出功率為20w 。
  14. This kind of product applies to elevators 、 hospitals 、 an intersection 、 factories etc., avoiding any interference to the process of monitoring the image from any kind of furious electromagnetic signal and electric waves signal

    本產品主要適用於電梯、醫院、路口、廠區等各種環境，防止監視視頻傳輸過程中受到各種強烈電磁信號及電波信號（如電機、馬達等大功率的瞬間啟動電流干擾等）對視頻信號的干擾。
  15. By improving surface condition of parts and one shot seal - off clean room grade, using ultrasonic vapor phase cleaning process, the inner parts of vacuum interrupter get cleaner. movable particles have been diminished by automatic current ageing, power frequency hi - voltage ageing and dynamic high current ageing. as the dielectric strength of clearance in vacuum interrupter improved, the probability of re - ignition in test drops evidently

    通過提高零件表面加工質量，改善一次封排間的真空衛生條件、制定合理的超聲波氣相清洗工藝提高管內潔凈度，採用自動電流老煉、超高壓工頻老煉、大電流動態老煉等工藝進一步消除真空滅弧室內活動性微粒，可提高真空滅弧室真空間隙介質強度，使真空開關投切電容器組的重燃率大大降低，並通過實驗驗證真空開關投切電容器組的重燃率在製造工藝改進後由原來的10 . 7 %降低至1 . 3 % 。
  16. This system can be used to test the optical output power of sld automatically. firstly, the principle and characteristic of sld have been analyzed. the effect of sld ' s stability on ifog and the theory of thermoelectric cooler ( tec ) have also been discussed in this paper

    首先，本文分析了sld光源的原理和特性，並且介紹了驅動電流的波動和溫度的變化對sld光源的影響，分析了光源的穩定性對光纖陀螺性能的影響和光源內部控溫器件半導體製冷器的工作原理。
  17. Simulation results show that the wavelet transform is suitable for the discrimination of the distant fault current from the train starting current

    對計算結果的討論表明了使用小波變換來鑒別地鐵遠方短路電流和列車起動電流是可靠的。
  18. This dissertation deeply studies the transient models of distant short circuit fault currents for the dc rapid transit railway and presents a detailed analysis of the wavelet transforms to discriminate the remote short circuit current from the train starting current

    本文主要討論了地鐵直流側遠方短路故障電流的暫態過程，並利用小波變換作為分析工具對遠方短路故障電流和機車起動電流進行了鑒別。
  19. Simulation comparisons verify the superior performance of the tri - state pwm technology. experimental results indicate that the current - controlled tri - state pwm switching power amplifier based on sample - hold strategy has high frequency bandwidth and fast dynamic response in a wide load range, which can well meet the demands of high - speed magnetic bearing

    模擬結果驗證了電流三態調制技術的優越性能；實驗表明本文研製的基於采樣-保持策略電流三態調制開關功放具有結構簡單、效率高、紋波小、電流動態響應快、頻帶寬、受負載影響小等優點，能很好地滿足高速磁軸承的要求。
  20. Fault feature in stator current is extracted by singularity detection of signals with half - complex wavelet transform and it can be helpful to the real - time detection of motor fault. harmonics caused by the fault of motor is detected accurately with real - time harmonics cancellation method. steady state current and starting current in stator are analyzed with real - time harmonics cancellation method and the improved harmonic wavelet separately, after that the feature component of rotor fault can be detected successfully

    採用半復小波變換對電機定子電流進行奇異性檢測，提取故障突變信號，有助於電機故障的實時診斷；通過實時諧波消去法檢測定子故障引起的高次諧波電流；採用改進的實時諧波消去法精確提取電機穩態電流中的轉子斷條故障特徵分量；為了進一步提高轉子斷條故障診斷精度，利用改進的諧波小波對電機起動電流進行時頻分析，提取轉子斷條故障特徵。
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