特徵頻率 的英文怎麼說

中文拼音 [tèzhǐbīnlǜ]
特徵頻率 英文
characteristic frequency
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 徵 : 名詞[音樂] （古代五音之一 相當于簡譜的「5」） a note of the ancient chinese five tone scale corre...
  • 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
  • 特徵 : characteristic; feature; properties; aspect; trait
  • 頻率 : frequency; rate
  1. Because of their inertia, the electrons will overshoot and oscillate around their equilibrium positions with a characteristic frequency known as the plasma frequency.

    因為電子的慣性，它們將沖過平衡位置，並以特徵頻率圍繞它們的平衡位置振蕩。
  2. 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。
  3. ( 2 ) our experimental results have shown the topographycal distribution of the cfs of neurons in a - 1. generally the neurons with high cfs laid in the rostral part of a - 1, and the neurons with low cfs laid in its caudal part. the similar isofrequency strip was observed in a - i cortex

    （二）大鼠皮層a區聽神經元的特徵頻率（ cf ）分佈具有分域特性， cf為高頻的神經元分佈在a區嘴側， cf為低頻的神經元分佈在a區尾側，實驗還發現在a區的內外側方向有類似的等頻帶存在。
  4. Some conclusions are drawn : 1 ) effect of inertial force from superstructures on the lateral seismic response of single pile can not be ignored ; 2 ) the lateral seismic response of single pile induced by far - field earthquake are mainly affected by acceleration mass of superstructure > site eigenperiod. it increases with the increment of accele ration and mass of superstructure. as the site characteristic frequency approaches the self - oscillation frequency of the pile, sympathetic vibration occurs and the value of lateral seismic response reaches maximum ; 3 ) as the stiffness ratio of pile to soil increase, the relative displacement of pile to soil increases ; 4 ) the lateral seismic response of fixed - head pile is much smaller than that of free - head pile

    將其解析解與具體的的抗震設防烈度和場地特徵周期結合起來，計算分析了成層地基中單樁的橫向地震響應，得到了以下結論： 1 ）上部結構慣性力對樁的橫向地震響應的影響不可忽略； 2 ）成層地基中的單樁的橫向地震響應主要受地震基本加速度、場地特徵周期、上部結構質量的影響，隨地震基本加速度、上部結構質量的增大而增大；場地特徵頻率越接近樁基自振頻率，樁基地震響應越大，等於自振頻率時，由於發生共振現象，樁基響應幅值最大； 3 ）樁土剛度比越大，樁土之間的相對位移的幅值越大； 4 ）樁頂固接的連接方式，可以有效地降低地震時單樁的橫向地震響應。
  5. The loading effect on gear vibration is explained by analysis of the simplified gear vibration model. and also the main characteristic frequency is given under the loading action, which is verified by many experiments

    通過對齒輪振動模型的分析和簡化，闡述了載荷對齒輪振動的影響，找出了齒輪在載荷作用下振動的主要特徵頻率，並經大量的實驗證實
  6. We rounded analysis that ring stator ’ size parameter how to affect ring stator ’ characteristic frequency by use the software for numeric analysis, and afford theoretical foundation for the optimum design of ultrasonic motor ’ structural parameter

    本文還利用分析軟體，全面地分析了定子圓環各個尺寸參數對特徵頻率的影響，為超聲波電機結構參數的優化設計提供了理論依據。
  7. By performing fourier transformation, the relationship between the turbulent intensity of the particle and that of the carrier fluid was obtained which makes clear that particle size, specific gravity, velocity gradient, and the characteristic frequency of energy - containing eddies are four basic influencing parameters. it is proven theoretically that under certain conditions, the stream - wise and transverse particle turbulent intensities exceed those of the carrier fluid. based on the equations of two - phase flow, the presence of fine sediment suspension is shown to attenuate the turbulent intensity of the water

    通過對細小顆粒在剪切流場中運動方程的fourier分析，得到了顆粒脈動強度和流體脈動強度之間的定量關系，表明顆粒粒徑、顆粒密度、流速梯度以及紊動場含能旋渦的特徵頻率是影響顆粒脈動強度的主要因素，首次從理論上證明了在一定條件下，顆粒在縱、垂向的脈動強度均會超過相應的流體脈動強度，為已有的實測資料提供了合理的解釋。
  8. The result shows that the current gain achieved 300 and the ft is more than 30ghz

    模擬結果顯示器件的共射電流增益為300 ，特徵頻率ft超過30ghz 。
  9. Using pro / e ansys fem software, based on results of analyzing fem model, the article discuss the influence to the eigenfrequency of the stator in different dimension parameters of the stator loop, different pzt thickness, the influence of tooth height along circumferential direction on eigenfrequency is analyzed. it offers a foundation for optimum design the structure of the stator. fem equivalent circuit model of the ultrasonic motor has been built

    利用pro / e 、 ansys等軟體建立了圓盤定子的有限元模型，通過有限元分析的方法，討論了定子圓盤各個徑向尺寸參數對特徵頻率的影響，不同壓電陶瓷厚度對定子特徵頻率的影響，以及定子齒的齒高的變化對特徵頻率的影響，為馬達結構參數的優化設計提供了依據。
  10. The numerical results indicate that the deformation within the solid inner core is very small. however, in the fluid outer core, the changes of the displacement with relatively low spherical harmonic degree ( n < 10 ) is very complicated via the radius, due to the resonance near the eigenfrequenies of the core long - period oscillations. while the spherical harmonic degree of the loading is larger than 10, the deformation and the gravitational perturbation in the core are very small, and the earth ' s deformation response is dominantly represented as the radial displacement in the elastic mantle

    研究了地球在日月引潮力和表面負荷作用下的形變特徵，數值計算結果表明，在固體內核中的形變很小，由於在長周期核模本徵頻率附近的共振，液核中低階（ n 10 ）位移隨半徑的變化非常復雜，當負荷階數超過10時，地核中的形變和擾動位都很小，地球的響應主要表現為彈性地幔中的徑向位移，且隨深度增加急劇減弱，地表負荷love數與信號頻率的依賴關系很弱，給出了體潮love數計算的一種有效的近似處理方案。
  11. The eddy current ring of pressure pipeline that is detected by spot probe is studied firstly in theory

    摘要首先從理論上分析了放置式探頭探測壓力管道時的渦流環模型，然後應用此模型推導出了檢測時的特徵頻率計算公式。
  12. Wavelet analysis is used to translate noise signal of the engine into time - frequency domain. selecting appropriate frequency band to pick up and making its envelope spectrum, then two feature frequency - 0. 5x speed frequency and 2x speed frequency that represent the abrasion condition can be found. in addition, a new diagnosis method of image processing technique is proposed

    利用小波分析將測得的機體噪聲信號變換到時頻域，選擇合適的頻帶加以提取並進行包絡譜分析提取包含特徵頻率的包絡，通過分析提取后的0 . 5倍頻和2倍頻分量，發現兩個特徵頻率可準確反映主軸承的磨損狀況。
  13. The compressor exists about 0. 265 rotor blade converted frequency near stall point, its intensity increases with rising of rotating speed and reducing blade row spacing. the blade row spacing would exert influences on rotor - stator interaction, stability and stall mode

    在臨近失速點處，不同工作轉速、不同動?靜葉排軸向間距均存在約為0 . 265轉子葉片摺合頻率的特徵頻率擾動，強度隨轉速的上升和軸向間距的減少而增大。
  14. Features : large dc current ( ic = 10a ), high ft ( ft 2mhz )

    特點:直流電流大，特徵頻率高。
  15. From the angles of the energy spectrum and distribution of feature frequency, ways of analysis on the tendency of signal in frequency domain are presented, and a method of solving frequency mixing is discussed

    從能量譜和特徵頻率分佈的角度，研究了監測信號的變化趨勢在頻域的表徵，並提出了一種解決小波包混頻現象的方法。
  16. Firstly, the voltage sample signals from ac exciter stator coil were de - noised and filtered by means of decomposition of the wavelet function. secondly, the character frequency region of the rotating rectifier fault was selected clearly with wavelet package decomposition and reconstruction

    先對交流勵磁機定子磁極線圈電壓采樣信號進行消噪濾波，再通過小波包分解和重構進行特徵頻率提取，建立了表徵旋轉整流器故障的特徵向量。
  17. On the aspect of extracting fault feature frequency, a method for monitoring abrasion fault of main bearing using noise and orthogonal wavelet transform is presented

    在故障特徵頻率提取方面，提出了採用基於噪聲和正交小波分析檢測主軸承磨損故障的一種新方法。
  18. With the rapid growth of wireless communication markets, si rfic is recognized as a fascinating candidate to meet the demands of low - cost, high integration, and mature technologies

    近年來，隨著特徵尺寸的不斷減小，深亞微米cmos工藝其mosfet的特徵頻率已經達到50ghz以上，使得利用cmos工藝實現ghz頻段的高頻模擬電路成為可能。
  19. By improving the process technologies, si - based active devices, for example, mosfet ' s and bjt ' s et al, demonstrate an extremely high f, f and fmax, which is sufficient for radio frequency ( rf ) / microwave applications

    對硅基有源器件，如mosfet 』 s和bjt 』 s等，通過改進工藝技術，可以得到很高的特徵頻率f _ t和振蕩頻率f _ （ max ）性能，能夠滿足射頻微波應用的要求。
  20. The changing of the peak area for a suitable wavelength with temperature is in agreement with the phase transition

    結果表明，某些紅外特徵頻率隨溫度的變化可反映出小分子液晶化合物的相態變化過程。
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