自振蕩的 的英文怎麼說
中文拼音 [zìzhèndàngde]
自振蕩的
英文
self oscillatory- 自 : Ⅰ代詞(自己) self; oneself; one s own Ⅱ副詞(自然;當然) certainly; of course; naturally; willin...
- 振 : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
- 蕩 : Ⅰ動詞1 (搖動; 擺動) swing; sway; wave 2 (無事走來走去; 閑逛) loaf; wander; roam; loiter; go a...
- 的 : 4次方是 The fourth power of 2 is direction
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Amplifier self-oscillates at a frequency depending on the velocity of the fluid.
放大器自激振蕩的頻率就取決于流體的速度。A method to eliminate self - oscillation in testing hfe of low power uhf audion
時自激振蕩的一種消除方法But sometimes self - excited oscillations and noise may appear in hydraulic flapper - nozzle servo - valve if its construction is not selected very correctly. if self - excited oscillations and noise appear in hydraulic servo - valve, the performance of hydraulic control systems may lose stability
因它具有非常快的響應速度,所以是目前應用最廣泛的伺服閥,但它也存在自激現象,容易產生自激噪聲和振蕩,嚴重影響伺服控制系統的穩定性。Aim to eliminate the influences of backlash nonlinear characteristics, a second generation adaptive pid controller based on single neuron is given. the result of simulation and the debug of actual digital servo system shows that the controller can effectively get rid of the sustained oscillation of the system caused by the backlash characteristics, and can improve the system accuracy
隨后,採用改進型單神經元自適應pid控制器來消除間隙非線性對系統的影響,模擬結果表明所採用的方法能有效消除間隙特性引起的系統自振蕩,並且能夠提高系統的跟蹤精度。Abstract : we have studied the spontaneous emission from a three - level atom with an external - driving field in a photonic crystal. as a result of quantum interference and photon localization, the population in the two upper levels displays quasi - oscillatory oroscillatory behavior. this depends on the initial atomic state and the relative positions of the two upper levels from the forbidden gap. the intensity and the phase of the external field can affect spontaneous emission from the atom. the properties are different from a three - level atom either in vacuum or in aphotonic crystal without an external driving field
文摘:討論了在雙光子驅動場作用下,三能級原子在光子晶體中的自發發射問題.由於量子干涉和光的局域化作用,兩個上能級中的占據數將具有周期振蕩或準周期振蕩的性質,這不僅依賴于兩個上能級與禁帶的相對位置,同時也依賴于原子的初始狀態,而且還與驅動場的強度、驅動場的入射位相有關.這些性質既與真空中帶有驅動場的原子的自發發射性質不同,也有別于無驅動場作用下光子晶體中三能級原子的自發發射性質Because the self - oscillation, the dynamic accuracy of the servo system is not only correlative with servo system parameters but also influenced by the input signal amplitude, frequency and the system self - oscillation state
由於自振蕩狀態的存在,伺服系統的動態精度不僅與伺服系統的參數有關,還受到輸入信號幅值、頻率以及自振蕩頻率的影響。For the amplitude - frequency response at the self - oscillation frequency is one, a method to calculate the dynamic accuracy and the index of the servo system is provided, by comparing them, the scheme to design the verifying unit is presented
利用伺服系統在自振蕩頻率點的幅頻特性為1這一特點,將輸入信號頻率、幅值、系統的自振蕩狀態和系統的參數聯系起來,構建了伺服系統動態精度的計算公式和指標估算經驗公式,並根據兩者的關系提出動態精度校正方案。Finally, the experiment was performed in order to exam the effect. the pulsating liquid flows through a single pipe heated electrically. the heat transfer coefficients were measured under different conditions
將helmholtz共振腔產生的自激振蕩脈沖射流引入換熱器后,當自激振蕩的強度達到一定程度后,可以強化換熱。The analysis and control of self - excitation oscillation in multi - pass systems
多程放大系統中自激振蕩的分析和抑制Simulative study on eliminating of self - excited oscillation in turning process via neural network control technology
利用神經網路控制技術消除車削過程自激振蕩的模擬研究There are various kinds of the self - oscillations in the preamplifier system of the high power laser facility, the origins of them were analyzed in theory
摘要分析了高功率激光裝置預放大系統內外各種自激振蕩的來源,通過理論計算和實驗驗證提出了各種自激振蕩的抑制方法,並在實踐中得到驗證。( 3 ) the frequency may transit from the second harmonic oscillating frequency to the third one when the hot temperature is higher than the specific temperature and the pressure is higher than the specific pressure
在實驗中發現,在一定的加熱溫度和工作壓力下,系統的自激振蕩的頻率從第二諧振頻率跳變到第三諧振頻率。It was found in preliminary tests that sound pressures of the oscillations were diminished with tripping wires or side jets when the wires or the jets were introduced into the impinging shear flow in certain ways
初步的試驗表明,在一定條件下絆線或旁射流削弱了流動的自激振蕩。為探求它們削弱自激振蕩的機理,在非撞擊剪切層上進行一組可控實驗。On the basis of the primary studies upon the nonlinear interactions between the unstable waves and the self - excited oscillations in the flow, experiments were focused upon the attenuation effects on the oscillations of tripping wires, side jets and deflected plates, and upon the mechanisms for the attenuations
在對流動的不穩定波之間非線性相互作用過程和自激振蕩的基本規律研究的基礎上,實驗研究了絆線、旁射流和折板削弱自激振蕩的效果與機制。Just under this urgent consideration, based on the fact that self - oscillation can produce pulsation of flow, to influence the flow boundary layer, thus to increase convective heat transfer coefficient, it is necessary to devote to the mechanism of self - oscillation and apply it to a heat exchanger
正是在這種迫切要求下,基於自激振蕩能產生脈沖流動而影響流動邊界層從而提高對流換熱系數來強化換熱的考慮,需要開展對自激振蕩的機理及其應用的研究。The relaxation oscillation in solid - state laser with relaxation oscillation pumping is studied theoretically by the rate equation. the undulation of the laser photon density contains relaxation oscillation frequency itself and that of pumping. when those two frequencies are close, the oscillation will be resonated
我們用速率方程小信號近似方法對泵浦帶有弛豫振蕩的固體激光器的弛豫振蕩的特性進行了系統的理論研究,發現實際光子數的起伏同時具有自身固有的弛豫振蕩頻率和泵浦光的弛豫振蕩頻率兩種分量。There are many optical depletion mechanisms, such as diffraction depletion, the transimission of a reflector, scattering of the medium in the cavity, non - life absorption and so on, so the quality factor ( q factor ) is low. in
利用這種微諧振腔製作的激光器,其自發輻射頻率落在光子晶體的禁帶范圍內,有效降低了激光振蕩的閾值,從而使激光器具有低閾值高效的特點。In the course of the low phase noise research, by integrating many aspects, using recent accomplishments, i come up with my method and theory, that by comprehending and controlling subcircuit of oscillator ' s resonator, can let us know exactly their working states. using this method and theory, combining the vco circuit of this subject, i deduce and demonstrate particularly the reason of low frequency oscillation, and come up with the measure of avoiding it. this makes design and producing vcos can avoid the disturbing of low frequency oscillation, and improve the features of vcos. at later process of debugging vco, using this method makes the vco achieves very good working state
在低相噪研究中,綜合了各方面的情況,運用了當今低相噪vco的研究成果,並提出了自己的對諧振電路結構進行總體把握,從而準確得知電路的工作狀態的思想和理論。運用此方法,在論文中結合本vco電路拓撲結構,詳細推導和論證了低頻振蕩產生的原因,並提出了避免發生低頻振蕩的措施。使低相噪vco的設計及調試能免於低頻振蕩的干擾,從而有利於提高vco的各項指標。For the same configuration resonance chamber, the intensity of the self - oscillation is changed by the waterpower parameters. when the pressure increases, self - oscillation intensity will increase. by applying the self - oscillation generated by the resonance chamber to the heat exchanger, and when the self - oscillation intensity achieves a certain degree, heat transfer will be enhanced
對于同一結構的共振腔,水力參數不同,產生的自激振蕩強弱也不相同,隨著壓力的增加,自激振蕩的強度也增加;將共振腔產生的自激振蕩引入換熱器后,當自激振蕩達到一定程度的強度后,可以強化換熱。In terms of diagnostic analysis chiefly, including of lanczos filter, single value decomposition ( svd ), ceof, composite and correlation analysis etc., and numerical modeling, the temporal and spatial characteristics of the intraseasonal oscillation ( mjo ) of the air - sea system and the causes are investigated in this paper
本文對海氣系統季內振蕩的時空特徵及其成因作了氣候學研究。主要採用診斷方法( lanczos濾波、奇異值分解、復自然正交函數分析、合成分析及相關分析等) ,並結合數值模擬。分享友人