正壓電效應 的英文怎麼說

中文拼音 [zhēngyādiànxiàoyīng]
正壓電效應 英文
direct piezo electric effect
  • 正 : 正名詞（正月） the first month of the lunar year; the first moon
  • 壓 : 壓構詞成分。
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 應 : 應動詞1 （回答） answer; respond to; echo 2 （滿足要求） comply with; grant 3 （順應; 適應） suit...
  • 正壓 : barotropic
  • 效應 : [物理學] effect; action; influence
  1. Due to the intrinsic direct and converse piezoelectric effects, piezoelectric materials have been widely used in engineering for the active shape or vibration control of structures

    摘要利用壓電材料固有的正、逆壓電效應可以對結構變形和振動進行控制。
  2. In this paper, at the cut - in spot of beam active vibration control and use the pzt material as the drive component, the main research works can be summarized as follows : 1 ) using the finite element theory, a general finite element formulation of piezoelectric media is derived, the direct and converse piezoelectric effects are considered in the formulation

    本文從梁的振動主動控制研究為切入點，利用了pzt材料作為驅動元件，作了如下幾個方面的研究： 1 ）利用有限元理論，考慮壓電材料的正、逆壓電效應的影響，導出了機電耦合壓電元件的有限元方程。
  3. The effect of electrostatic force of the drive voltage on the accelerometer had been researched when the bias voltage polarity is positive - negative configuration

    前人在研究驅動信號對傳感器的靜電力效應時，用偏置電壓極性為正?負配置的驅動信號進行研究。
  4. Smart materials and structure have definite requirements of sensor components and driving components, for example, they can adhere well to the matrix and have higher strength, fatigue strength, more broad scope of frequency response and faster response speed, etc. piezodielectric ceramics have characteristic of easily preparing, heat - resistance, wet - resistance, high strength and broad scope of frequency response, etc. furthermore, it has piezoelectric effect and inverse piezoelectric effect, namely it can produce electric potential energy when it is transformed by mechanical strength and its mechanical dimension can be transformed when voltage is put on it

    壓電陶瓷能與基體材料很好結合，具有制備容易、耐熱、耐濕、強度高、頻響寬等特點，另外它具有正壓電效應和逆壓電效應，即當它受到機械力變形時，能產生電勢，對它施加電壓時，能改變其機械尺寸，因此它在智能材料結構中既能用作傳感元件又能用作驅動元件。
  5. Today, liquid crystal, a new functional material, has been applied more and more widely. on the side of display, owing to stable frarne, absolute environmental protecting, save electric energy and no tire for user, liquid crystal display keeps ahead among the range of display. with the developing of the technology of liquid crystsl, lcd will must substitute for crt and become the chief in market. in additin, liquid crystsl light filers which have been used in optic communicatins and light information handling, emply th e technical of combining the birefringence of liquid crystsl and fabry - petrot - type cavity. they manifest a series of merit, such as narrow band wide, deterioration low, wide tuning domain, simple structure and low cost, so liquid crystal light filter draw attention of many country

    現在，液晶作為一種新型功能材料越來越得到廣泛的應用，在電子顯示裝置中，液晶顯示器以其畫面平穩、真正安全環保、省電和使用者不易疲勞等優點領先於顯示器的行列中。隨著液晶技術的發展，液晶顯示器將取代crt顯示器逐步成為未來市場的主流。此外，應用於光通信和光信息處理中的電調諧液晶濾光片，採用液晶材料的雙折射和電光效應與傳統f - p腔相結合，表現出窄帶寬、低損耗、調諧范圍寬、驅動電壓低、結構簡單、低成本等一系列優點，而日益受到各國研究部門的關注。
  6. The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material

    本文的主要工作和結論如下：在人工氣候室內，根據不同覆冰絕緣子正、負極性下的閃絡試驗結果，得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓；正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應；覆冰較少時，合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法，對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明，直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低，且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。
  7. Abstract : a new approach, gate - capacitance - shift ( gcs ) approach, is described for compact modeling. this approach is piecewise for various physical effects and comprises the gate - bias - dependent nature of corrections in the nanoscale regime. additionally, an approximate - analytical solution to the quantum mechanical ( qm ) effects in polysilicon ( poly ) - gates is obtained based on the density gradient model. it is then combined with the gcs approach to develop a compact model for these effects. the model results tally well with numerical simulation. both the model results and simulation results indicate that the qm effects in poly - gates of nanoscale mosfets are non - negligible and have an opposite influence on the device characteristics as the poly - depletion ( pd ) effects do

    文摘:提出了一種新的建立集約模型的方法，即柵電容修正法.此方法考慮了新型效應對柵電壓的依賴關系，且可以對各種效應相對獨立地建模並分別嵌入模型中.另外，利用該方法和密度梯度模型建立了一個多晶區內量子效應的集約模型.該模型與數值模擬結果吻合.模型結果和模擬結果均表明，多晶區內的量子效應不可忽略，且它對器件特性的影響與多晶耗盡效應相反
  8. And the transformation efficiency of enterococcus faecalis is obviously higher than that of lactobacillus plantarium by pulse electroporation with different voltages, which suggests th at the two strains of lab have different usage in the research of genetic engineering of lab

    利用不同的電壓進行脈沖轉化兩株乳酸菌，發現兩株菌的轉化效率和電壓有對應的正相關，並且糞腸球菌的轉化效率明顯比植物乳桿菌高。
  9. In order to consider the different heating of positive - sequence current and negative - sequence current of the motor stator generally, the equivalent current is adopted instead of the traditional phase current. the way how to gather positive - sequence current and negative - sequence current is brought forward, and the recurrence fourier - algorithm is adopted to calculate the effective value of current and voltage, the effective value of positive - sequence current and negative - sequence current

    為了全面考慮感應電動機定子正序電流和負序電流的不同發熱效應，提出了正序電流和負序電流獲取的方法，並採用遞推傅氏演算法來實現電流、電壓及電流正序和負序分量的有效值的計算。
  10. It is found that, tinder certain conditions, the first or the second perpendicular phase component of the multi - mode functional superposition stale ligh field can present any generalized nonlinear equal - power higher - power sum - squeezing effect which changes periodically

    結果表明，在一定的條件下，該態的第一正交相位分量（即廣義磁場分量）和第二正交相位分量（即廣義電場分量）分別呈現出周期性變化的廣義非線性等冪次高次和壓縮效應。
  11. The design was developed for a piezoelectric micro - placement actuator based on the actuation effect of piezoelectric materials

    利用壓電材料的正逆壓電效應，建立了壓電微位移作動器的設計模型。
  12. In chapter two, the direct and inverse piezoelectric effect of piezoelectric ceramic are studied, and the piezoelectric equation of piezoelectric ceramic is deduced

    分析了壓電陶瓷的力學和電學性能，闡述了它的正、逆壓電效應，推導了壓電陶瓷的壓電方程。
  13. The main works already done include the effects and mechanism of stimulation of renzhong on respiration and blood pressure, the electrophysiological and morphological properties of the respiratory neurons in the medulla oblongata of rat, the roles of the medullary respiratory neurons in the regulation of respiration and respiration - related activities, the relation of the nucleus paragigantocellularis lateralis with the control of respiratory rhythm, the roles of the neurons of pre - botzinger complex in the control of respiration and their neurochemical properties, and the establishment of a simple and effective technique of decerebrating rat

    已完成的系列研究工作主要有：人中的呼吸和血壓效應及其機制；大鼠延髓呼吸神經元的電生理和形態學特點細胞內研究；延髓呼吸神經元在呼吸和呼吸相關活動調節中的作用；旁巨細胞外側核與呼吸節律；前包欽格復合體神經元的神經化學特性和在呼吸調控中的作用；建立了一種簡便有效的去大鼠大腦方法。正在進行的科研工作主要有：
  14. Lithium ion battery is a new generation green non - pollution battery when it was used in the 1990s. it is widely used in portale electron apparatus and cars, due to its highlighs, such as high voltage, low discharge rate by itself, little volume, light weight and nonmemeory effect, but the cathode materials for lithium ion batteries are the key to constrain its whole performance

    鋰離子電池是90年代后投放市場的新一代綠色環保電池，它因為電壓高、自放電率低、體積小、重量輕、無記憶效應等獨特性能被廣泛應用於便攜式電器以及電動汽車中，而鋰離子電池正極材料是制約其整體性能的關鍵。
  15. It is comprised of a sensor head ( a quadrangular pyramid tip, a base, four quartz crystal plates ) and a network analyzer and an apparatus to apply three - axis force. according to mechanics, four plates of the quadrangular pyramid tip correspondingly receive four one - dimension forces when applying a three - axis force to the sensor head. because quartz crystal has a force - frequency effect, namely, resonance frequency change of the quartz crystal is in direct proportion to one - dimension forces applying to it, four certain resonance frequency changes of the four quartz crystal plates are corresponding to a three - axis force

    當傳感頭受三軸力作用時，根據力學的分析可以確定三軸力與四角錐體四個面上單向力之間的對應關系，用分別貼在四角錐體四個面上的四片壓電石英晶體作為壓敏元件，由於石英晶體的力頻效應（即石英晶體在受到應力作用時，它的諧振頻率與應力大小成正比） ，從而最終確定了四片石英晶體的諧振頻率改變量與傳感頭上所受三軸力大小和方向之間的對應關系。
  16. At first, the average - current controlled boost pfc and buck converter small - signal model are estabished. the average - current controlled boost pfc and buck converter prototype are designed and manufactured. on basis of the small - signal model, the two - stage i / o impedance characteristic and miller effect are analyzed by simulation with matlab software

    其次單獨設計了前級、后級變換器樣機，在兩級模型基礎上，應用matlab軟體模擬分析了前後級變換器對接處的i o阻抗特性和密勒效應，運用奈奎斯特判據對兩級結構寬輸出電壓范圍的功率因數校正器的穩定性進行了分析設計。
  17. Considering the randomness of physics parameters of structural material, geometric dimensions, damping, loads and closed loop control voltage respectively or simultaneously, the analytic model of the stochastic structure under random forces are built. the solving methods are proposed. the computational expressions of the numerical characteristic of the structural dynamic response are developed

    2 、考慮壓電智能桁架結構物理參數、幾何參數、結構阻尼和外荷載、閉環系統控制電壓分別或同時為隨機變量，構建了結構在隨機力作用下的動力響應分析模型，提出了求解方法，推導出結構動力響應隨機變量的數字特徵計算表達式，通過算例驗證了所建模型和所提求解方法的正確性和有效性。
  18. By selecting polynomial displacement function, buckling analyses for isotropic, orthotropic and angle plying laminated plates with built - in symmetric delamination are made. finally, transfer function method is adopted to three - dimensional stress analysis of laminated piezoelectric cylindrical shell. the sensing and actuating effects of three - layered piezoelectric cylindrical shell are presented

    採用傳遞函數方法對正交各向異性有限長簡支壓電層合圓柱厚殼進行了三維應力分析，並對三層壓電圓柱殼的傳感效應和作動效應進行了分析。
  19. When piezoelectric material is put on outside force, it will cause the translocation of positive and negative electricity inside piezoelectric material. then piezoelectric material will generate polarization and shape tied electricity on the surface of the piezoelectric material that is proportional to the outside force

    對壓電材料施加外力時，會引起壓電材料內部的正、負電荷發生位移，並產生極化，從而在壓電材料的表面形成與外力成比例的束縛電荷，稱為正壓電效應。
  20. Fire hazard testing part 10 : guidance and test methods for the minimization of the effects of abnormal heat on electrotechnical products involved in fires - section 2 : method for testing products made from non - metallic materials for resistance to heat using the ball pressure test

    著火危險試驗.第10部分:將火中電工產品不正常熱的效應減至最小的指南和試驗方法.第2節:使用球壓試驗的非金屬材料制產品的耐熱性試驗方法
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