波動電壓 的英文怎麼說

中文拼音 [bōdòngdiànyā]
波動電壓 英文
fluctuation voltage
  • 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...
  • 壓 : 壓構詞成分。
  • 波動 : 1 （不穩定） undulate; fluctuate; unsettle; surge; rise and fall 2 [物理學] wave （motion）; wave...
  • 電壓 : voltage; electric tension; electric voltage
  1. Power for the thermal cycler shall be provided with a manostat or a ups to avoid the influence on pcr amplification arose by fluctuation of voltage

    熱循環儀的電源應專用，並配備一個穩壓電源或ups ，以防止由於電壓的波動對擴增測定的影響。
  2. 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。
  3. In addition, we analyse the dead time effects of pwm control on the output waveform

    另外還分析了逆變橋上下管驅動信號上的死區對輸出電壓波形的影響。
  4. Osteoarthritis or rheumatoid arthritis treatment may involve electrical modalities e. g. short wave diathermy, interferential and ultrasound, traction, mobilization, manipulation, ice and hot treatment and some special exercises

    電療如交錯干擾中波電療和高壓間動電療，熱療如短波電療及熱敷等超聲波電療牽引療法俗稱拉腰拉頸手力治療水療冰療，運動及預防方法。
  5. 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。
  6. When the voltage of the primary fluctuated is within the range of 5 %, with mediating the saturation of the magnetic flux, this new interfluent stable power supply can retain the outputting power of the secondary invariable

    當一次側電壓在5 %額定電壓范圍內波動或偏移時，通過調節磁路的飽和程度，保持二次側輸出電壓不變。
  7. Adsl splitter and transformer, lan transformer, rj45 jack integrated with magnetics, home plug turbo ( 85mbps ) plc to ethernet bridge, inverter modules for ccfl

    漢仁公司主要設計和生產通信網路分離器、變壓器、濾波器、電力線通信設備、背光源驅動模塊、電源等產品。
  8. The algorithm of svpwm that is adopted by the system implements motor speed - regulation by control of magnitude and phase of motor flux. it can generate less harmonics in the output current of power inverter and less losses of ac motor, reduce pulsant component in output torque and raise availability of dc supply voltage

    系統採用的svpwm演算法通過對空間磁鏈矢量幅值和相位的控制來調節電機轉速，減少了逆變器輸出電流的諧波，降低了脈動轉矩，提高了電壓的利用率。
  9. The tailrace surge chamber shared by two units, common in hydropower stations with diversion systems, has problems of water level fluctuation and hydraulic disturbance

    摘要雙機共尾水調壓室是水電站引水發電系統中一種常見的布置形式，存在尾水調壓室水位波動和水力干擾問題。
  10. ( 8 ) by studying match between the electronic system and catalytic converter on the base of electronic controlled bypassing air system, conclusions having been gotten as follows : higher conversion efficiency of emission have gotten when a / f fluctuates at definite scope and frequency, by controlling the comparing voltage of 02 sensor, the working scope of catalytic converter can be controlled and the matching that can fulfill the high efficiency of hc, co, nox at same time has been optimized

    （ 8 ）進行基於所開發的電控補氣系統上的催化器與電控系統的匹配研究，當控制系統調節空燃比在一定范圍按照一定頻率進行波動時，可以提高催化轉化器的轉化效率；通過控制氧傳感器的比較電壓，可以控制催化轉化器的工作窗口，實現排放污染物中， hc 、 co 、 nox轉化的最優匹配。
  11. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  12. In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high

    針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析，變頻器輸出的電壓波形諧波大，沖擊大，電壓上升率高達6600v / s ，是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低，額定頻率在8 - 20hz ;調速范圍寬，最低運行頻率低到0 . 5hz ，起動次數相當頻繁，每小時高達600 - 800次，沖擊負荷大，過載能力要求較高。
  13. 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。
  14. The main circuit is consisted of 18 thyristors circuit and protection circuit. with the help of control subsystem, it can get the output of low frequency voltage ( current ) with the shape of sine wave ; the core of the control subsystem is the cpu of 87c196kc, and the synchronization circuit, the pulse - widen circuit, and the power - enlarged circuit form the accessorial subsystem of the control system. it possesses all the functions of digital triggering, digital tuning, analog / digital conversion ; the input transfer can isolate the input and output ; and the circumfluence reactor can reduce the circumfluence

    主迴路採用由18個晶閘管組成的三相零式電路，並輔以晶閘管的保護電路，通過控制可以得到低頻正弦波的電壓（電流）輸出；控制迴路主要以87c196kccpu為核心，其外圍電路包括同步電路，脈沖拓寬電路，功率放大驅動電路等，完成了數字觸發、數字調節、模數轉換等功能；進線電源變壓器具有變壓和隔離作用；環流電抗器則實現了有效抑制主迴路瞬時脈動環流的功能。
  15. However, df pre - processing is not required in a interferometer direction finder. it only makes use of the phase relations or differences of sensors disposed at different position. azimuth and elevation are caculated from the phase differences or displayed directly on a crt drived by the voltage or current from the phase differences

    干涉儀測向不必進行測向信號預處理而是直接或間接求取在空間上分開的傳感器上感應電勢之間的相位關系，即干涉相位差，方位角或仰角是直接由干涉相位差計算得到，或將兩基線正交的天線陣的干涉相位差轉化為驅動電壓（電流）分別加到crt陰極顯示器的垂直偏轉線圈和水平偏轉線圈，模擬顯示出來波方位，干涉儀測向為典型的相位測向方法。
  16. The radius of the micropump is 3mm, the radius of the films of micropump is 2mm, the thickness of the films of the micropump is 5 m, the thickness of the pzt chip is 10 m, the tall of the micropump is 1000 m, the drive voltage is 50v, the drive frequency of the micropump is 4000hz

    泵體半徑為3mm ，泵膜半徑為2mm ，泵膜厚度為5 m ， pzt片厚度為10 m ，泵體高度為1000 m ，方波驅動電壓為50v ，驅動頻率為4000hz 。
  17. Three possible contact driving mechanisms of saw motor are discussed, and the frictional drive of saw motor is shown by the linear relation between the speed of the slider and the driving voltage

    探討了表面彈性波馬達三種可能的接觸傳動機理，並以表面彈性波馬達動子速度與驅動電壓呈線性的關系，首次證實了表面彈性波馬達的工作原理是接觸摩擦傳動。
  18. Keywords : active power filter, voltage type harmonics, load voltage regulaton

    關鍵詞：主動式電力濾波器、電壓型諧波、負載電壓調整。
  19. In this dissertation, the boa device with high extinction - ration, low drive - voltage, high - speed switch and insensitive to wide range of light wavelength, has been developed on double - heterostructure gaas / gaaias

    本研究就是在gaas gaalas雙異質結材料上設計高消光比，低驅動電壓，高速度，較寬范圍工作波長不敏感的高性能boa光開關。
  20. The third part introduces the design, fabrication, analysis and testing of serveral types of variable optical attenuators. we have designed a micro - machining based voa that consists of an electromagnetically actuated gold - coated silicon mirror rotating around a 100 # am diameter shaft and a miniature driven coul. the voa is capable of fast dynamic response ( < 2ms ), great dynamic range ( 0 ~ 35db ), and low return loss ( < 55db )

    論文利用有限元分析軟體ansys對該器件進行工作曲線分析及動態響應分析，分析結果與實測結果接近，實測結果表明，驅動電壓0 8v ，工作范圍0 35db ，動態響應時間為2ms ，插入損耗小於0 . 8db ，回波損耗小於- 50 . 5db 。
分享友人
分享到 Line

分享到臉書