瞬態率 的英文怎麼說

中文拼音 [shùntài]
瞬態率 英文
slew rate
  • : Ⅰ名詞(眼珠一動; 一眨眼) wink; twinkling Ⅱ動詞(眨眼) wink
  • : 名詞1. (形狀; 狀態) form; condition; appearance 2. [物理學] (物質結構的狀態或階段) state 3. [語言學] (一種語法范疇) voice
  • : 率名詞(比值) rate; ratio; proportion
  • 瞬態 : transient; instantaneous condition; transient state
  1. The result of study shows the sr - qsw - buck converter adopted interleaving and magnetic integrated techniques achieves high efficiency, low volume, fast transient response, and satisfies severe performance requirements of vrm

    研究結果表明:採用磁集成技術的交錯並聯sr - qsw - buck拓撲具有效高、體積小、響應速度快的特點,可以滿足vrm的嚴格性能指標要求。
  2. A data acquisition system with the following features is realized : ? transmission rate up to 100kbyte / s over usb ; ? system ' s dynamic range as high as 120 db ; ? multi - kind of trigger mode control ; ? sampling rate as high as 100 ksps ; ? 12 - bit a / d conversion accuracy ; ? 32k bytes on - board data memory ; ? the system, which was made up of large - scale electronic chips, is small, light and portable, and suitable for field use

    本設計最終實現了一個信號數據採集系統,它具有以下特點: ?採用usb介面進行高速數據傳輸,傳輸速度達100kbyte / s ; ?採用浮點a / d轉換技術,動范圍達120db ; ?多種采樣觸發控制方式; ?最高采樣100ksps ; ? 12位采樣精度: ? 32kb數據緩存; ?使用新型大規模電子器件,系統結構緊湊,重量輕,適合野外作業。
  3. And at this foundation through the dispersed domine analyse the paper makes a great emphasis on the application of computer aided design and simulation, then designs a series of apfc design and simulation software. this paper takes out a set of designation and simulation on base of actual circuit. the reliable result, output voltage and inductance current which are got from this software are the same as the actual value

    本文在對一系列apfc電路設計、模擬分析方法討論比較的基礎上,著重應用離散時域法進行了計算機輔助電路設計和模擬方法的應用探索,以此為基礎設計了pfcexpert功因數校正電路設計、模擬軟體,針對實際電路給出了整個設計和模擬全過程,通過實驗驗證了該軟體所得到的精確穩解、輸出電壓和電感電流,與實際電路輸出基本相同,所建立的電路模型重現了電路的運行過程,反映了電路的實際工作機理。
  4. Skj ( jjw ) series of ac purifying regulated power supply, incorporating functions of regulation and auti - inter ference, designed and muters, xerox, video equipments, medical instrmments and other electr onicinstrmmerts and autocontrol systems for is wide vange of regulating, high precicion, quickacting, high effciency, small itcan restrain restrain sharp voltageand protect from moise of electric power net

    系列進精密凈化電源是當今國際上普遍採用的現代電源調節技術,配以大容量濾波器與集成化控制系統構成;它具有如下特點:可靠性好、效高、優良的動(,體積小、重量輕、噪音低、負載適應能力強;適用於對電源要求較高的儀器或設備。
  5. Then after analyzing the heat conduction in laser diode array, we simply simulate the transient thermal behavior of high power laser diode array and build a two dimensional static model of temperature distribution of it by fem ( finite element method )

    接著分析激光器陣列中熱的傳導,簡單的模擬工作工程中溫度的變化。然後通過有限元分析法,建立二維溫分佈,得到穩工作時,大功激光器陣列中晶元和載體的溫度的空間分佈。
  6. At turn - on, the diode can be considered an ideal switch because it turns on rapidly compared to the transients in the power circuit

    在導通時,與功電流的特性相比二極體可以視為理想開關。
  7. Since polymer light - emitting diodes ( pleds ) were invented, much efforts have been made to improve the brightness and efficiency of its electroluminescence for realizing pled commercial application. we investigated several factors influencing the brightness, efficiency and spectrum characteristics of pleds el, especially focused our attention on the processes of carrier injection, transport, recombination and annihilation factors influencing brightness efficiency of organic electroluminescence ( oel ) in doped single and double - layer pleds

    本文以提高聚合物器件的效和亮度為目標,提出了提高及b幾種方案,研究了材料性質,器件結構,它們的穩特性及發光機理,特別關注了以兼具電子空穴傳輸能力的分子及摻雜聚合物作成的單雙層摻雜聚合物發光器件中的載流子注入、遷移、復合及湮滅等。
  8. Abstract : it is well - known that the sampling period of some da ta acquisition syst ems ( das ), if not short enough, may limit the evaluation of their transient perfo rm ance

    文摘:數據採集系統的采樣周期是有下限的,即其採集速不可能無限高,這在實際應用中常常限制了其響應特性的獲得。
  9. Because of that there is a lowest limit of the sampling rates of each data acquisition system, that is the sampling rate can not be at any value ( especially it can " t be at any high enough ), one can " t get the transient performance of das sometimes, and it may limits the evaluation of their transient performance

    由於采樣周期是有下限的,即採集速不可能無限高,這在實際應用中常常限制了其響應特性的獲得,因而也限制了其傳遞函數的辨識和評價。
  10. After simulating the model of water hydraulic valves, the velocity distribution, pressure distribution, energy distribution can be obtained and relations between the valve channel and the energy loss, the negative pressure distribution can be analyzed, which offers the theory foundation for designing water hydraulic valves with the high efficiency, low energy loss and low noise

    通過對水壓閥模型的cfd穩解析,可以得到水壓閥內流場的速度分佈、壓力分佈及能量分佈,據此定性分析流道結構(速度、壓力、流動的分離與再附壁,旋渦的產生與消失等)與能量損失、負壓分佈等的關系,從而為設計出高效、低能耗、低噪聲的水壓閥提供理論依據。
  11. The paper establishes mathematics model of electromagnetic heating system of eddy current field and temperature field, and gives corresponding discrete format with elements as eight nodes, hexahedron equal cell, through calculating eddy - current field to gain the internal heat source that the temperature field needed, to use discrete method to solve the problem of induction - heating part ' s temperature field by axial symmetrical electromagnetic, and then to analyze the characteristic of instantaneous temperature field

    本文建立了電磁加熱系統的渦流場和溫度場間接耦合的數學模型,分析了不同頻下渦流和溫度的分佈情況,並以八節點六面體等參元為例給出了渦流場對應的離散格式,通過計算渦流場獲得溫度場所需要的內熱源強度,加熱部件的溫度場以軸對稱格式進行離散求解,並對溫度場有限單元法的求解特點進行了分析。
  12. Based on a 3 - d transient thermal model with inhomogeneous heat generation, the temperature and thermal stress distribution in the disk of heat capacity laser pumped by high power laser diode array ( lda ) are simulated and analyzed by means of finite element methods

    摘要為了研究激光介質熱畸變對固體熱容激光器的影響,數值計算了高功激光二極體陣列抽運片狀激光介質的溫度場和熱應力分佈。
  13. The outcome shows that such digital electronic speed governor is in possession of stable timing rate of 1. 0 % and instantaneous timing rate of 6. 2 %. and it is worth a wide popularization for its simple structure and low cost

    在對hondagx31汽油機進行了大量試驗后結果表明:在標定轉速6000r min時,該電子調速器可以達到1 . 0的穩調速和6 . 2的調整,優于國家標準的要求。
  14. This paper presents the architecture and performance of a high - speed data acquisition system based on pci, whose sample rate reached 200msps

    摘要闡述了一套基於pci介面采樣達200m / s的波形記錄儀的結構及其性能。
  15. While working in offline ( no pc ) mode, additionally to normal transducer, it has soft - startup function and fast - stop function. and the input of frequency and voltage - coefficient is optional. while working in online mode, additionally to working in offline mode, it can process, display, save and load waveform, which is specialty of computer

    脫機工作(無pc )時,它除具有一般變頻器功能外,還具有軟啟動功能、頻和電壓輸入源可選、急停功能等;在聯機工作時,除具有脫機工作的全部功能外,還具有計算機特有的圖形處理、顯示、存取能力,包括波形、各種參數動過程曲線等。
  16. The heat sources are analyzed in theory and calculated under some hypothesis. a thermal conductive model is built and by solving the model equation, the numerical values of the 1 - active region laser, 2 - active region laser, 3 - active region laser and 4 - active region laser are obtained. the dynamical temperature distribution plots are obtained, too

    在一定的假定條件下對其內部的熱產生進行了定量計算,並分別針對一、二、三、四有源區激光器建立了熱傳導模型,得出數值解,畫出激光器內部溫度分布圖,推導了激光器連續工作條件。
  17. In this paper, we study inversionless lasing of frequency up - conversion in an open v - type system with incoherent pump. making theoretical analysis and numerical calculation by density - matrix equations of motion, we derive the conditions for the onset of lwi and discuss the effects of the parameters of the system, the detuning of driving field and probe field on the gain, and discuss nonlinear effect in the frequency up - conversion regime. we also give stability and transient analysis

    本論文研究了具有非相干泵浦的開放v型系統頻上轉換無粒子數反轉激光,利用密度矩陣運動方程,通過理論分析和數值計算,得出該系統產生無粒子數反轉激光的條件,討論系統各參數的變化和驅動場與探測場的失諧對激光增益、色散和粒子數差的影響,還討論了頻上轉換區域的非線性效應,分析了增益的穩定性及系統的演化過程。
  18. The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed

    主要工作在以下幾個方面: 1 、針對頻選擇性衰落通道:結合輸入輸出空間同構關系提出一種新的頻選擇性通道均衡方法,與傳統方法相比,該方法計算量更小,收斂速度更快,性能更優,且對系統階次的過確定表現穩健,具有實際均衡應用價值; 2 、針對時間選擇性衰落通道:提出一種基於迫零均衡的時間選擇性通道均衡方法,演算法結構簡單; 3 、針對時變色散通道:利用均值曲線提取通道時變信息,對之ar建模,利用卡爾曼濾波器跟蹤時變通道抽頭變化,可以快速跟蹤通道變化;基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法,提出了新的單輸入多輸出色散時變通道均衡與識別演算法,同樣具有對通道階次過確定保持穩健的優點;結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法;研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題,給出一種時變系統處理模型。
  19. When the coupling rabi frequency c satisfies the condition of c > 1 / 2 3, the transient process is a relaxation oscillation behavior. as the coupling rabi frequency c decreases, the transient oscillation behavior slows up

    當_ c _ 3 / 2時,這個過程為一馳豫振蕩過程,在不同大小的耦合光rabi頻_ c條件下, _ c取值越小,過程振蕩越慢。
  20. It has a higher frequency distinguished - degree and a lower time - distinguished degree in low frequency part. as high frequency part, it is the other way around. so wavelet is adapt to probing the instantaneous abnormal phenomena of signal exactly and to show its components

    小波分析是一種時頻分析方法,它在低頻部分具有較高的頻解析度和較低的時間解析度,在高頻部分具有較低的頻解析度和較高的時間解析度,很適合探測信號中的反常現象並展示其成分。
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