輸出脈動 的英文怎麼說

中文拼音 [shūchūmàidòng]
輸出脈動 英文
output ripple
  • : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
  • : 脈名詞1. (動脈和靜脈的統稱) arteries and veins2. (脈搏的簡稱) pulse 3. (像血管的組織; 連貫成系統的東西) vein
  • 輸出 : 1 (從內部送到外部) export 2 [電學] output; outcome; outlet; out fan; fanout; 輸出變壓器 output ...
  • 脈動 : [物理學] [天文學] pulsation; pulsing; pulse; ripple; impulsive motion; pulsating; panting; loping...
  1. Fluid noise mainly comes from out put pulsation of rate of flow, the main reason of out put pulsation of rate of flow is the instant high pressure return flow that obturation cubage produced when the big round curve pressure transition. the v trough on the port plate can reduce the fluid noise. in this paper, the author based on the acting of dam a river and condensability of liquid and used matlab language as tool to calculate the v trough on the original port plate and drew out the p - t diagrammatic curve and analyzed its shortcoming and improved the design of original v trough and got that the best size of its angle was 12. 3 and its length was 5mm and the cross section was an equilateral triangle

    流體噪聲主要來源於流量,造成流量的主要原因是閉死容積在大圓弧段壓力切換時產生的瞬時高壓迴流,在配流盤上開設v型尖槽可降低因高壓迴流而引起的流體噪聲,本文以截流作用和液體的可壓縮性為理論依據,以matlab語言為工具,對原配流盤上的v型尖槽進行了理論計算,繪制p - t圖線,分析了它的不足,並對原有v型尖槽進行了優化設計,得了v型尖槽的最佳幾何尺寸:配流盤平面上的v型尖槽的兩邊的夾角為12 . 3 ,槽長5mm ,槽的橫截面為等邊三角形。
  2. The system comprises three modules : the first is the ccd driver module, which controlled with cpld. programming the cpld to produce ccd driving pulses and synchronized communication signals. after preprocessing, the output video signals are transmitted into high resolution adc module, in which they are converted into digital signals, and then processed in arm processing module

    整個系統分為三個模塊: ccd驅模塊的核心是一片復雜可編程邏輯器件( cpld ) ,對其編程產生ccd的驅沖及同步控制信號;視頻信號經預處理后,由高精度ad轉換模塊進行采樣,將ccd的模擬信號轉換成數字量;最後,將數據送入arm處理系統中進行后續處理。
  3. Carries created by ultra - fast laser pulse accelerate in the field of the photoconductor and form a transient photocurrent. the shape of the photocurrent lies on the movement of the carriers, as well as the movement of the carrier ' s lies on the field in the photoconductor

    光電導體中的載流子在光電導體內的運情況決定了所沖的波形,而載流子的運是在光電導體內部電場的作用下進行的,所以光電導體內的電場對光電導開關的性能有顯著的影響。
  4. 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,減少了逆變器電流的諧波,降低了轉矩,提高了電壓的利用率。
  5. And gave priority to the eular - bernonulli beam model, the simply and convenient analytical resolution for the response of the pipelines under dynamical traffic loads through the impulse function and the congruence method of the vibration form and so on. during the analysis of the chanmical results of the pipelines, the randomicity of the output of the pipelines response was taken into accout. so the stochastic process method was applied to describe the probability characters of the pipelines response, which made the results truer, more veracious

    本文採用eular - bernonulli梁模型和tomosimko梁模型對力下kelvin粘彈性地基中管道固有振性狀進行了分析,提了各力學結果描述的解析式;並以eular - bernonulli梁模型為主,基於沖函數、振型迭加法等對管道在力交通荷載作用下的管道響應問題提簡單便捷的解析演算法;在管道受力結果的分析中,考慮管道響應的隨機性,將管道響應用隨機過程來描述其概率特徵,使得結果描述更加真實準確。
  6. The results show that : the glomerulus of the mouse consists of a lobular arteriole within the glomerulus, capillary meshwork lobules and communication branches between the lobules and the efferent arteriolar roots ; there are some sublobular microcirulatary units in lobules ; the glomerulus of chrysolophus pictus is only a tortuous vascular ball ; there are no branches anastomosed between the vascular ; the afferent arteriole is a branch, efferent arteriole is one either, but some efferent arteriole has branches

    結果表明:小白鼠腎小球由小球內小葉微、毛細血管網小葉及小葉間交通支和小葉血管構成,小葉可分亞單位;紅腹錦雞腎小球為一簇迂迴盤曲的血管團,血管間未見有復雜的分支和吻合;小白鼠和紅腹錦雞進球小球小均為一支,但有的球小有分支。
  7. 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 %

    從功率單向流角度發,提了一種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。
  8. Because this device was intended as an electronic tranquilizer, it has blinking lights, pulsing tone, and heat outputs as well

    由於這種裝置的目的是為電子鎮靜劑,它具有閃爍的燈光,沖聲音,熱等。
  9. The following is the detail design of the pump, and a optimum mathematical model are presented to mostly reduce the helical gear pump flow pulse

    在此基礎上進行了斜齒齒輪泵的結構設計,通過建立斜齒齒輪泵齒輪的優化數學模型,優化計算使流量最小的斜齒輪參數,製造斜齒齒輪泵樣機。
  10. At first, on the base of the analysis of the mechanism of the helical gear pump, the paper try to find the relationship of the helical gear pump flow pulse with its corresponding parameters, give the solution of the problems brought by the replace of spur gear to lay the firm basis for the structural design of helical gear pump

    本論文在對齒輪泵工作原理和流量機理分析的基礎上,首先探討了斜齒齒輪泵的流量與斜齒輪各結構參數之間的關系,以及由於斜齒輪替代直齒輪帶來的相關問題並提解決辦法,為斜齒齒輪泵的結構設計奠定基礎。
  11. The study shows that the output pulse value of resistance absorption equipment is related to the chopper switch conduction ration and the selection of lagging angle

    研究表明,地面電阻吸收裝置的電流與斬波器的導通比、各支路斬波器的開關滯后角有關。
  12. The interface utilizes the high - speed pu lse function of plc basic unit to realize the control frequency of pulse, pwm regulate voltage and to make use of drivers of step motor control step motor

    利用plc主機模塊的高速功能,控制沖頻率的發生、 pwm寬電壓的調節,並通過步進電機驅器實現對步進電機高效控制。
  13. On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula

    應用透光率檢測技術和光散射顆粒粒度分析儀( pda ) ,通過理論分析,將pda的信號之一? ?平均透光強度(對應于dc值)作為原水的特性表徵參數, dc值可以同時反映顆粒濃度和比表面積因素的影響,試驗結果證明, dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系: dc = cs _ p ~ d ,式中c 、 d為經驗系數,進而得到了以dc值為參數的高分子絮凝劑投藥量公式: d = f ( dc ) = e ( dc ) ~ f ,式中: e 、 f為經驗系數,平均相關系數達0 . 981 ,利用所建立的公式,建立了前饋? ?后饋聯合控制的在線自投藥模型。
  14. The correlative items of dc filters are researched on the basis of gezhouba - shanghai hvdc transmission project. in the analysis the three - pulse model is used to simulate converter, which takes into account the impact of the stray capacitance. the harmonics distribution on dc lines is simulated accurately, especially the harmonic ignored in old models

    本文以葛上直流電工程為基礎,研究直流濾波器設計中的相關問題,採用考慮了雜散電容的三模型來建立換流站模型,更為準確地模擬直流電線路上的諧波分佈情況,尤其是模擬舊模型中忽略的次(為自然數)諧波,為直流濾波器的設計提供了更精確的數據和判斷依據。
  15. The video signal processing circuit realizes the primary catching, filtering and signal amplifying. variable threshold binarization processing circuit and two - channel counter are designed to sample to count the output pulse signal, which is processed, deposited and displayed in microprocessor. the communication interface circuit with the computer is also designed

    視頻信號處理電路完成了原始信號的初級捕捉、濾波、視頻放大等處理,設計了浮閾值二值化處理電路,採用兩路計數器對沖信號采樣計數,最後送入微處理器進行運算處理,可實現測量值的儲存、顯示等,並設計了與上位機的通訊介面。
  16. The nonuseful loss of cavity were got by measuring the threshold of laser under the different output mirrors. the loss was caused by prague angle unmatching. 3. the pulse train with minor pulse width 22ns and frequency 23khz, peak power 3. 5kw were obtained in cr4 " : yag passively q - switch experience. the stability of pulse is 6 %

    ( 3 )實現了在大功率泵浦、無水冷的情況下cr ~ ( 4 + ) : yag飽和吸收體被調q ,得到了最小寬為22ns 、重復頻率為23khz 、峰值功率為3 . 5kw的激光沖的穩定性為6 。
  17. At present, mechanical impulse stepless speed regulators are applied extensively. because the structures of those regulators existing at present have a lot of advantages and disadvantages, it affects their application in the cases that small impulse output and stability are required

    機械式無級變速器是目前應用較廣泛的一種無級變速器,現有的各種形式的無級變速器有一系列的優點,但也存在一些不足,影響了該無級變速器在一些要求輸出脈動值小、傳連續平穩的工作場合的應用。
  18. The results from the calculation and simulation indicate that this thyristor trigger has had a wide triggering angle, high controlling precision and better symmetry output pulses, whereby obviously improving the dynamic performances of the digital - type trigger and overcoming some defects in traditional triggering electric circuit in such a way as to satisfy the requirements by the diqital controlling equipment with high power and reliability

    計算和模擬結果表明,該觸發器的觸發角范圍大、控制精度高、沖對稱度好,明顯地提高了數字式觸發器的態性能,並克服了傳統觸發電路的一些缺陷,可滿足大功率和高可靠性數字控制設備的要求。
  19. The hardware circuit design include : industrial control computer configuration, selection of industrial control board type, design of the power supply and monitoring interface circuit, design of signal processing interface circuit ( the constant current source circuit, the time base signal processing circuit, the processing circuit for the signal to be measured ), design of panel control circuit, design of the system self - checking circuit, and etc. the program flow hart include : main program flow chart, system boot - strap self - checking program flow chart, manual static testing program flow chart, semiautomatic static testing program flow chart, automatic static testing program flow chart, dynamic testing program flow chart, transient testing program flow chart, source voltage and current monitor program flow chart, investigate function testing program flow chart, and etc. the measure system offers six working power supplies, the signal of time base, the signal of constant current source, sine wave signal and step to leap signal, and measures the frequency of the output pulse signal of the wide range pulse convert circuit accurately under three kinds of different test state ( static form, dynamic form and transient form )

    硬體電路設計包括:工控機配置、工控板卡選型、產品電源及監控介面電路設計、信號處理介面電路(恆流源電路、時基信號處理電路、被測信號處理電路)設計、面板控制電路設計、系統自檢電路設計等。程序流程圖包括:主程序流程圖、系統開機自檢程序流程圖、手靜態測試程序流程圖、半自靜態測試程序流程圖、自靜態測試程序流程圖、態測試程序流程圖、暫態測試程序流程圖、電源電壓和電流監控程序流程圖、研究功能測試程序流程圖等。測試系統提供六路工作電源、時基信號、恆流源信號、正弦波信號和階躍信號,並對三種不同測試狀態(靜態、態、暫態)下大量程沖變換電路沖信號的頻率進行精確測量。
  20. According to the following design theory : the dsp calculates in real time and produces three phases spwm waves to control the on or off of the 6 igbts in ipm respectively. ipm then inverts the commutated single phase direct current ( insulated gate bipolar transistor ) into three phases alternating current. when modulated signals of spwm are changed, the on - off time of switches also changes, so as to the voltage and frequency of output signals

    本文提了一種基於dsp (數字信號處理器tms320f240 )的通用的三相間接變頻電源系統,利用分段同步調製法和混合查表法,實時計算不同頻率下的采樣周期、電壓幅值、寬,產生雙極性spwm波形,經驅放大後用于ipm ( intelligentpowermodule )中的絕緣柵雙極型晶體管柵級驅,以控制電源的電壓和頻率,實現變頻電源的智能數字控制。
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