頻率極限 的英文怎麼說

中文拼音 [bīnlǜjíxiàn]
頻率極限 英文
frequency limitation
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 頻率 : frequency; rate
  • 極限 : 1 （最高的限度） the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
  1. Conveniently, epidaurus ' s threshold is about 500 hertz

    在埃皮達魯斯，這種極限頻率恰好是500赫茲。
  2. Code this control code of the recording s bit inside of the 16 the instruction to tell to put in the hdcd in the cd hdcd in the phonograph solution code, is central plains the number this of the high of that short restores out. like this, hdcd can in the cd of 44. 1 orotund number that khzs sampling frequency extreme limit inside, exceed the bandwidth 20 khzs re - appeared out

    在hdcd編碼錄音的第16bit中的這個控制代碼指令告訴放在cd唱機中的hdcd解碼器，把訊號中原本的那個短促的陡高音還原出來。這樣， hdcd就能夠在cd的44 . 1khz的取樣頻率極限內，把頻寬超過20khz的聲音訊號重現出來了。
  3. The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward

    介紹了限制寬帶放大器頻帶寬度的因素，通過分析mosfet的本徵參數、寄生參數對頻率特性的影響，提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法；分析了不同電路組態對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響，根據應用於雙極晶體管電路的跨導線性原理，提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬帶放大器，獲得了良好的頻率響應。
  4. Bridge can be detected by the transformation of structure mode parameters with the modern technology of signal test. the vibration frequency is obtained easily in the measure, but it is n ' t sensitive to the transformation of mass and rigidity. so it is difficult to identify by test system when the damage of structure reach to the limit damage degree

    在實際的工程測量中最容易獲取的結構模態參數就是振動頻率，但是振動頻率對質量、剛度的變化具有弱靈敏性，這使得即使結構的破損程度達到了極限破損程度，振動頻率的變化也很難被測試系統識別。
  5. First, the system operation conditions that include three input types ( square, sinuous and triangle ) with different frequencies ( l / 250hz, l / 5hz and 1hz ) are discussed. in fault detection processes, we construct 4 three - layer bp neural networks to learn the normal states of the system. the outputs of trained neural networks are as the estimate values of the sensors

    本文詳細研究了在這種情況下的故障診斷問題，針對某液壓系統，分析了系統在方波輸入、正弦輸入、鋸齒波輸入下，分別在正常工作頻率、極限工作頻率以及接近極限工作頻率等9種工作狀態的特性，以及在這9種工作狀態下，運用神經網路觀測器進行傳感器故障診斷研究。
  6. At last, in according to the experiment results, the interpretation of the mechanism of the slip phenomenon of prepressing - contact spring - damping system was given in this dissertation. further more, the relationship among the limit frequency, the value of prepressing, excitation frequency, the amplitude of excitation and the materiel parameter was analyzed. base on the theory analysis the limit frequency formula was given, and the contact - slip condition for engineering application was concluded

    最後根據理論研究與試驗分析的結果，分析預緊接觸式彈簧阻尼系統產生滑移現象的機理以及共振峰值漂移現象的理論解釋，並通過定性分析接觸分離時的頻率與預緊量、激勵頻率、激勵力幅值以及墊層的材料參數之間的關系，提出能定量描述系統出現滑移現象的極限頻率公式，總結了預緊接觸式結構始終保持接觸的條件。
  7. The actively mode - locked erbium doped fiber laser is very attractive among those potential sources which can generate broadband tunable near transform - limited pulse with high repetition rate and has been used as the ideal optical transmitter and all optical clock source in the future long - distance communication systems

    對于高速光纖通信系統而言，能輸出高重復頻率的、近極限超短脈沖的主動鎖模光纖激光器被認為是未來遠程無中繼光纖通信系統的理想光源。但其難點是工作穩定性問題。
  8. Because of the limitation of thin silicon film epitaxial technology, it is difficult to grow thin silicon film epitaxial of thickness less than 2 m for a long time, which makes the series resistance large

    但長期以來，由於薄硅外延生長技術的限制，無法生長出優質的厚度小於2 m的薄硅外延層，使硅肖特基二極體的串聯電阻無法降的更低，限制了其截止頻率的提高。
  9. From the unique viewpoint of shannon information theory, this dissertation investigates the varying and transmission of information and uncertainty in control systems using measures of entropy, mutual information, kullback - leibler information and information rates, in time and frequency domains, respectively. several problems concerning state estimation, modeling, h control, performance limits and design constraints of control systems are addressed under this framework

    論文以有別于傳統控制理論的獨特視角? ?信息的觀點研究控制系統，採用shannon信息論中的熵、互信息、 kullback - leibler信息及相應的信息率分別考察了控制系統在時域和頻域中信息和不確定性的傳輸和變化，討論了狀態估計、模型化、 h _控制及控制系統性能極限和設計約束等領域的相關問題。
  10. In this modulator, coplanar strips ( cps ) are used as electrodes for they support balance mode propagation of microwave, and this is a desired merit for common optical modulator. due to the miniaturized dimensions, the metallization thickness is in the order of skin depth and the conductor losses are not negligible

    雖然由於金屬的趨膚效應，電場將集中在金屬表面，但在40g以上的頻率條件下，金屬的厚度和趨膚深度在一個量級，而且此時調制器帶寬受到限制的最大根源來源於金屬電極的微波損耗。
  11. This paper constructs fe models of srm in detail and analyzes the vibration mode and natural frequencies with the finite element analysis software package, and studies the influence of the stator structure of srm, such as stator poles, ribs, mounting feet, terminal block and structure parameters, restriction condition on the srm vibration behavior, the contrast to experiment result implies that the fea model is close to the real model for analyzing the vibration characteristics of srm

    本文基於有限元分析方法，主要研究了定子凸極、底座、散熱筋，加強筋，接線盒等結構以及結構參數對定子固有頻率和振動模態的影響，並且研究了約束條件下的sr電機定子振動特性。本文比較了模態實驗與有限元分析結果，表明所建立的二維有限元模型對分析sr電機的振動特性有較好的精度。
  12. By using the aperture curve and roughness curve, the author of the dissertation has put forward the concepts of frequency hydraulic aperture and frequency roughness for the first time. of the two concepts, the first or frequency hydraulic aperture has got some advantages of its own in the seepage analysis

    3 、本文首次利用寬配和糙配曲線，提出頻率隙寬和頻率粗糙度的概念，特別是頻率水力隙寬的提出，為解決現有隙寬應用中出現的局限性具有極大的幫助作用。
  13. For the material characteristics limitation of si, the switching power loss of si pin diode increase with the switching frequency so that it is necessary to reduce the switching power loss by lifetime control technology which employs lifetime killer such as au, pt or radiation to lower the stored charge ( q., )

    Sipin二極體由於其材料特性的局限性，使開關功耗隨開關頻率的提高而增大，通常採用壽命控制技術（如摻金、鉑和輻照等）降低少數載流子壽命從而降低開關功耗。
  14. In order to increase the efficiency on using limited frequency resource, orthogonal polarization is normally adopted for frequency reuse, thus offering double bandwidth at the certain working band

    為了充分利用有限的頻譜資源，衛星通信採用正交極化頻率復用方式，在給定的工作頻段上提供雙倍的使用帶寬。
  15. The vibration characteristic of the rotor is calculated by the ansys software. the first ten natural frequencies and mode shapes are calculated. the utmost velocity of the rotor can be calculated

    利用ansys對電機轉軸進行了模態分析，求出了轉軸的前十階固有頻率和振型，得出了轉軸的極限轉速。
  16. Extremely durable. even with high frequency and high speed applications, the highly effective hydraulic membrane can use boardrline lubrication conditions. this may reduce friction considerably, and maximum durability can be guaranteed only in a normal operating environment ( semi - permanent )

    壽命長. . . . .即使是高頻率、高旋轉時的連結，極具效果的油膜可以使邊界呈潤滑狀態，因此摩擦板的摩相當少，只要在正常使用條件下就可以達到將近永久的使用年限（半永久） 。
  17. Secondly, definitions of a extended bethe tree, bethe tree and cayley tree are introduced. further, the even - odd markov chain fields and markov chain fields indexed by a extended bethe tree, bethe tree and cayley tree are defined. subsequently the strong limit theorems proved above are applied to the study of all kinds of even - odd markov chain fields and markov chain fields defined above, which both extend the conclusions in [ 30 ] and [ 39 ] and prove a class of strong limit theorems for the even - odd markov chain fields and markov chain fields. as corollaries, we obtain some strong limit theorems for the frequencies of occurrence of states and ordered couples of states for the even - odd markov chain fields and markov chain fields. lastly, some coarse estimates are gained about the state occurrence frequencies for all kinds of even - odd markov chain fields and markov chain fields defined in the paper

    然後把前面所證得的一類強極限定理應用到本文中所定義的各種奇偶馬爾可夫鏈場、馬爾可夫鏈場的研究工作中，從而推廣了[ 30 ]和[ 39 ]中的結論，獲得了本論文中所定義的各種奇偶馬爾可夫鏈場、馬爾可夫鏈場的一類強極限定理。作為這一類強極限定理的推論得到了狀態和狀態序偶出現頻率的一類強極限定理。最後，給出了本論文中所定義的各種奇偶馬爾可夫鏈場、馬爾可夫鏈場上狀態出現頻率的若干粗略估計。
  18. Abstract : to against the fact of the commercial available white noise generators are very expensive which is not good for general operations, a simple and effective limited band white noise generator is design. the generator is using the feature of dual polarity transistor, i. e., the power spectrurn density of particulate noise is not related to frequency in very wide band and close to white noise. the concrete circuit is also given

    文摘:針對市售白噪聲發生器價格昂貴，不利於一般場合使用的問題，介紹利用雙極性晶體管散粒噪聲功率譜密度在非常寬的范圍內與頻率無關，屬白噪聲這一特性，設計了一種簡捷、有效的限帶白噪聲發生器，並給出了具體電路。
  19. Specifically, acknowledging the large proportion of the manufacturing phase taken up by product design and the high pace of product renovation, the paper proposes establishing a cad application system with cipe method, which will shorten the design proportion of the manufacturing phase, swiftly develop and design new products of international standards, and significantly improve design efficiency

    特別是論文根據上海港機股份有限公司生產周期中產品設計所佔比重大及產品更新頻率快這一實際情況提出運用cipe理念和方法來建立cad應用系統，這將大大縮短生產周期中的設計時間，快速開發設計出與國際接軌的新產品，可極大地提高開發設計效率。
  20. The transient analysis and simulation studies in time - domain showed that the transient capacitance current of busbar is unable to be caught due to the limitation of the given sampling frequency, therefore the transient current singularity of the fault line and the non - fault line will approximate, which prevents to identify the fault line with the criterion calculation result of transient current protection

    研究結果表明，線路出口故障時暫態電流保護完全失去選擇性的根本原因是，在給定的采樣頻率的限制下，難以捕捉到過渡過程中極其短暫的母線分佈電容中的暫態電流，從而故障線路與非故障線路暫態電流波形的奇異性相近，根據故障線路和非故障線路的暫態保護判據計算結果不能正確識別故障線路。
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