next pulse 中文意思是什麼
next pulse
解釋
下一個脈沖-
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。 -
The physician, as he had a fair right to be termed, next bestowed his attention on the mother. with calm and intent scrutiny, he felt her pulse, looked into her eyes - a gaze that made her heart shrink and shudder, because so familiar, and yet so strange and cold - and, finally, satisfied with his investigation, proceeded to mingle another draught
那醫生如今可以當之無愧了，這才探視作母親的：他仔細認真專心致志地為她摸脈，還觀察她的眼睛他的盯視本是如此熟悉，此時卻陌生而冷酷，只看得她的心都抽搐了，收緊了最後，他滿意地結束了診斷，開始調和另一劑藥。 -
F pulse is over the limit, adjust your pace and walking time next day to suit your heart ability
如脈搏次數超過標準，你便要調節步伐及整體步行時間，以配合心臟能力 -
Next, the effects of the electron - beam quality on the characteristics of the vircator are investigated with simulation method. the simulation results show that the front edge of the beam pulse has almost no effect on the saturated microwave output, while good front edges can accelerate the saturation of the virtual cathode oscillation, and beam quality ( except its energy spread ) has almost no effect on microwave frequency, and so on
結果表明：上凸形束脈沖前沿可使虛陰極振蕩器達到飽和振蕩的時間縮短但對微波飽和功率基本無影響；束流脈寬應足夠大，否則虛陰極振蕩器不能達到飽和振蕩（對應本文中的模型，束脈寬應大於16ns ） ；能散度的影響不可忽視，當能散度為5時，束波轉換效率從單能束時的3 . 8降至1 . 5 ；束流質量（除能散度外）對微波頻率基本上沒有影響等。 -
As the dispersive influence can be easily described by a frequency transfer function, the feasibility of measuring the function with the g - s algorithm is researched numerically in the next part. from the results of simulation with fibers with different length and pulses with different width, it ’ s known that the convergence of the algorithm is related to the difference between the input and output pulse. then, the influence of attenuation and self phase modulation of fiber is discussed, and the influence of the delay phenomenon and fitted polynomial is also analyzed
通過對不同光纖長度和不同輸入脈沖脈寬的計算，得到了g - s演算法的收斂性與輸入波形和輸出波形之間的關系;在此基礎上，通過對光纖損耗、自相位調制的模擬，分析了損耗和自相位調制對光纖傳遞函數測量的影響;本文還分析了波形測量中的拖尾現象和多項式擬合對測量的影響，進而，對利用g - s演算法進行單模光纖傳遞函數測量的可行性進行了闡述。 -
Occasionally, a microwave pulse reflected from a distant rain area may arrive at the radar after the radar has emitted the next pulse of microwave
有些時候，當從遙遠的雨區反射回來的微波到達雷達時，雷達已經再次發出脈沖。 -
The main advantage of this pdm converter is that one half - cycle of the high - frequency voltage becomes the basic unit of synthesis of the low - frequency signals. the area difference under the reference signal and synthesized signal and the next pulse with the polarity will reduce thi s difference
Pdm技術的特點是將高頻交流脈沖信號的一個半周期作為合成低頻信號的基本單元，通過比較同時刻參考波形和輸出波形的面積差，使得兩個曲線包圍的面積可以基本維持平衡。
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