direct pulse 中文意思是什麼

direct pulse 解釋
探測脈沖
  • direct : adj 1 筆直的，一直線的；正面的。2 直接的。3 直截了當的，直率的，明白的。4 直系的，正統的。5 【語...
  • pulse : n 1 脈搏；有節奏的跳動；【動物；動物學】脈沖（波）；脈動。2 意向；傾向。3 【音樂】拍子，律動。vi ...
  1. The object of the filtering is to enhance the direct pulse from the shot and to attenuate the ghost.

    濾波的目的，是改善來自炮點的直達脈沖並壓制伴隨波。
  2. Effects of pulse and direct current on the microstructure and the spark erosion resistance of electrochemical deposit layer as edm tool were investigated

    結果表明，採用脈沖電流可以使電沉積層的某些性能得到改善。
  3. In gan hemt drain pulse current collapse experiments, drain current under pulse condition collapsed about 50 % than direct current condition and the pulse signal frequency affected little on current collapse. when gate voltage is small, the relationship between pulse width and drain current is i0 ( + t / 16 )

    在ganhemt漏極脈沖電流崩塌測試中，發現脈沖條件下漏極電流比直流時減小大約50 % ;脈沖信號頻率對電流崩塌效應影響較小;當柵壓較小時，隨著脈沖寬度的改變漏極電流按i0 （ + t / 16 ）的規律變化。
  4. In gan hemt gate pulse experiments, drain current under pulse conditon collapsed about 47 % than direct current condition and the pulse width affected little on current collapse. the relationship between drain current and pulse frequency is ncoxw [ m + ( n + k ? ) vgs + ( n + k ? ) vgs2 ] ( vgs - vth ) 2 / l

    在ganhemt柵極脈沖電流崩塌測試中，觀察到柵脈沖條件下漏極電流比直流情況下減小了47 % ;隨著信號頻率的改變，漏極電流按ncoxw [ m + （ n + k
  5. These results prove that the charging action of the power supply is right. the simulation method is applied with other power supply system. at the same time, the hardware system of 2qkv - 60kw high - voltage capacitor direct current charging power supply is described in this paper, and discuss why designed a full digital phase - shifting pulse circuit

    同時，本文敘述了20kv ? 60kw高壓電容直流充電電源的硬體電路的設計，其中討論了為什麼不採用已有的uc3875 、 uc3879等晶元來產生zvspwmdc dc變換器的移相脈沖，設計了全數字式移相脈沖產生電路。
  6. The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization

    其中變極性電源採用二次全橋逆變結構，一次逆變提供快速的響應速率並給二次逆變提供能量，二次逆變提供良好的變極性性能，使輸出能量最優化，並用其低頻電流特性減小電弧線能量，控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極性電流dcen上，利用電流的高頻特性壓縮電弧，改善焊縫金屬結晶過程。
  7. With the development of digital technology, getting pulse compression signals with direct digital synthesis has been in general use these days. it is widely used to generate pulse compression signal using dds method

    隨著現代數字技術的發展，直接數字波形合成（ dds ）的方式獲得脈沖壓縮信號已為現代雷達普遍採用。
  8. In order to study on ultra short pulse precisely, some measurement methods are established, such as second order autocorrelation, frequency - resolved optical gating ( frog ), self ? referencing spectral phase interferometry for direct electric reconstruction ( spider )

    為了準確研究超短脈沖，長期以來，人們已經形成了二階自相關法、頻率分辨光學開關法（ frog ） 、自參考光譜位相相干電場重建法（ spider ）等測量方法，並各具特點。
  9. The cleavage rate of oocytes at 18 - 19h after hcg injection was clearly higher than those at 12 - 13h and 15 - 16h after activation ( 71. 67 % vs 7. 50 % and 55. 83 %, p < 0. 01 ). the rates of avtivation, cleavage and development of blastocysts after 22h started to fall, but with no difference with those of 18 - 19h ( p > 0. 05 ). to sum up, the optimal electric stimulation conditions of mouse oocytes at 18 - 19h after hcg injection is 2. 0kv / cm direct current field strength, 80us pulse duration, 3 times pulse and 0. 3mol / l mannitol medium with 0. 1 mmol / l cacl2 and 0. 1 mmol / l mgso4

    880和12 50o ） ，但與18l的卵母細胞組無明顯差異o 0刀5 ） 。綜上所述，在本實驗室條件下，以含ca刀、 mgh的甘露醇溶液為激活液，採用2刀by cm強度、 80呷脈寬、連續3次脈沖（每次間隔10min ）刺激注射hcg后18二9h的小鼠卵母細胞，可獲得較為理想的激活效果。
  10. Extraction of the in - pulse characteristics of signal based on direct sampling from if signal and quadrature coherent detection

    基於中頻直接采樣正交相干檢波技術的信號脈內特徵提取
  11. For iir, after researching pulse response method, step response method, bilinear transform method, direct design method, it is found that iir is unsatisfactory

    對iir的脈沖響應不變法、階躍響應不變法、雙線性變換法和直接設計法進行研究，得出iir難以滿足要求的結論。
  12. The direct torque control theory is a kind of new control method after vector control theory in ac control field. it calculates and controls the torque and the flux of ac electromotor in stator coordinate using the voltage space vector. adopting the stator magnetism field direction method, it recurs to discrete pang - pang control producing pulse width modulation signal and controls the switch state of the transductor when better quality steady - state performance is produced

    直接轉矩控制技術是繼矢量控制技術之後交流調速領域中新興的控制技術，它採用空間矢量分析的方法，直接在定子坐標系下計算並控制交流電動機的轉矩和磁鏈，採用定子磁場定向，藉助于離散的兩點式控制產生脈寬信號，直接對逆變器的開關狀態進行最佳控制，以獲得轉矩的高動態性能。
  13. In this thesis, assembler language was applied to program to realize dsp algorithm controller, which can perform such main computing as data collecting, self - adaptable distortion current detecting based on linear nerve cell, capacity voltage controlling in the side of direct current based on fuzzy control, pwm pulse width computing based on unsymmetrical rule sampling, etc. quick control speed ( one work period is 50 s ) and high accurateness feature largely in the controller

    本文採用匯編語言編程實現了dsp演算法控制器，它完成了數據採集、基於線性神經元的自適應畸變電流檢測、基於模糊控制的直流側電容電壓控制、基於非對稱規則采樣的pwm脈寬計算等主要演算法的運算。該控制器具有控制速度快（一個工作周期為50 ） ，精度高等特點。
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