積分電路法 的英文怎麼說
中文拼音 [jīfēndiànlùfǎ]
積分電路法
英文
integrator method- 積 : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 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...
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 積分 : 1. [數學] integral; integrate; integration 2. [體育] (積累的分數) accumulate points
- 電路 : [訊] circuit (ckt); electric circuit; electrocircuit電路板 circuit board; 電路保持 guard of a c...
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Among various fabrication techniques of thin film, the sol - gel process has gained much interest for the preparation of pzt thin film, due to ihe advantages of good homogeneity, easy control of composition, low in - ill i reaving temperature, easy formation of large area thin films pb ( zrxti : - k ) 0 :, ( pzt ) films were prepared on the ito coated glass plates and low resistor silicon wafer in sol - gel dip - coating process associated wi di heat treatment : at different temperatures and characterized by x - ray diffraction ( xrd ) and transmission electron microscopy ( tem ). lt is shown that the pzt ferroelectric thin films with ( 110 ) preferred orientation and well - crystallized perovskite structure can be obtained after annealing at 680 ? for 30 minutes on ito substrate and at 800 " c for lornin on silicon substrate
Pzt的制備方法有很多,其中溶膠?凝膠( sol - gel )方法可以和集成電路( ic )光刻工藝相互兼容,處理溫度低,有大面積塗敷性能,能精確地控制組分,無需復雜的真空設備,成本低廉,所以對于集成鐵電薄膜電容的應用這種方法有很廣闊的前景。本文利用sol - gel技術在摻錫的in _ 2o _ 3透明導電薄膜( ito )襯底和低阻硅襯底上成功地制備了pzt鐵電薄膜。運用了x射線衍射, sawyer - tower電路和lcr電橋分別對薄膜的晶化溫度,結構和電學性能進行了測試。Abstract : based on the analysis of the mathematics models of saturation steam density and superheat steam density the paper states that the deviation of the detection on temperature highly affects the accuracy of intelligent flow totalizer. especially for saturation steam , the accuracy of the temperature detection circuit shall be designed higher than the accuracy of the instrument. thus a temperature detection circuit based on ratio method with high accuracy is introduced
文摘:在分析飽和蒸汽和過熱蒸汽密度的數學模型的基礎上指出,溫度檢測的偏差對智能流量積算儀的精度影響極大,尤其是飽和蒸汽,測溫電路的精度應設計為遠高於儀表的精度,同時引入一種基於比率法的高精度測溫電路。The explanation of field theory takes two independent equations in integral form derived from maxwell equations as basic law of circuit theory. beginning with two independent equations, ftn analyzed the linear dc and ac networks, nonlinear networks and many kinds of circuit analyzing methods and so on
場論說的電路理論是以從麥克斯韋方程組導出的積分形式的兩組獨立方程組為基本定律,從此基本定律出發,推理演繹電路理論的基本內容,分析了線性直流和交流網路、非線性網路以及各種電路分析方法等。Abstract : a research on theory and practice is conducted on the acoustic methods of discharge measurement in low head hydropower plant. taken hydraulic efficiency experiment in certain hydropower plant as examples, the general methods about how to locate the discharge measurement plane, install transducers and choose the integration methods are put forward. an improvement method is proposed finally
文摘:從理論上和實踐上,對低水頭電站超聲波測流進行了較為詳細的研究,並以某水電站為例,對測流斷面定位、聲路布置和面積積分給出了一般方法Analyze and compare pid and vague, single neuron etc. control strategy, and combine with single neuron self adaptive gain, self adaptive right value and preventive integral saturation etc. control strategy. have improved single neuron control algorithm, may restrain efficiently to disturb, reduce broken arc and short circuit etc. phenomenon, make systematic control effect and robustness get to strengthen, also have certain application reference value for the design of the dc arc furnace
通過對pid 、模糊、單神經元等控制策略的分析比較,將單神經元增益與權值的自適應調節、抗積分飽和等控制策略相結合,改進了單神經元控制器演算法,可以有效抑制擾動,減少斷弧、短路等現象的發生,使系統的控制效果和魯棒性都得到增強,對電弧爐控制系統的設計也具有一定的應用參考價值。This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved
本文提出了一種採用修補spwm正弦表值的方法,用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變;逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器,提高了系統的動態響應指標;系統設計了完善的保護措施,並具有市電電網的故障診斷功能。Type plane wave incidence and the input admittance of cylindrical monopole antenna, it is testified that the proposed method is more accurate than the conventional square contour integration method
型平面波的散射電流以及單極細圓柱形天線的輸入導納,對所提出的方法作了驗證,證明了該方法比常用的矩形積分迴路法對細導線上電流的模擬要精確得多。In the dissertation, a novel hybrid excitation constant voltage synchronous generator is adopted to improve the system performance, which takes the advantages of both electrical excitation and permanent magnet machines. a parted configuration is presented in order to design the structure of the generator. the adaptive digital adjustment is settled in principle using the single chip microcomputer 80c31 as the control core of the voltage regulator and adopting the proportion - integral - differential control as the control arithmetic, then a sample is made
論文對同步發電機的工作原理、性能特點、電機本體以及電壓調節器的硬體和軟體設計進行了研究,針對稀土永磁同步發電機變載、變轉速情況下輸出電壓不可調的不足之處,採用一種新穎的電機型式? ?自適應復合勵磁恆壓同步發電機,綜合了永磁發電機和電勵磁發電機的優點,提出一種磁路分開的結構進行電機本體的設計,並選用單片機80c31作為電壓調節器的控制核心,比例?積分?微分控制( pid )作為其控制演算法,從原理上較好地解決了其電壓的自動數字調節,並試制了一臺樣機。In 6. 635, topics covered include : special relativity, electrodynamics of moving media, waves in dispersive media, microstrip integrated circuits, quantum optics, remote sensing, radiative transfer theory, scattering by rough surfaces, effective permittivities, random media, green ' s functions for planarly layered media, integral equations in electromagnetics, method of moments, time domain method of moments, em waves in periodic structures : photonic crystals and negative refraction
本課程所覆蓋的論題包括:狹義相對論、運動媒質的電動力學、色散媒質中的波、微帶集成電路、量子光學、遙感、輻射傳輸理論、粗糙表面上的散射、有效介電系數、隨機媒質、平面層狀媒質的格林函數、電磁學中的積分方程、矩量法、時域矩量法、周期結構中的電磁波:光子晶體和負折射率。Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向,本論文重點做了以下幾個方面的工作,目的在於提高dtc系統的綜合性能: ( 1 )提出一種新型的速度磁鏈觀測器,新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度,並且根據popov超穩定性理論推導出轉速的新型自適應收斂律; ( 2 )改善系統的低速運行性能,主要從提高低速時對定子磁鏈的估計精度入手,提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數; ( 3 )採用數字信號處理器dsp實現系統全數字化硬體控制,結合ti公司生產的tms320lf2407晶元,設計了直接轉矩控制系統的實驗裝置; ( 4 )提出了基於sercos總線網路化分散式的直接轉矩控制系統, sercos ( serialrealtimecommunicationsystem )是目前最適合同步和協調控制的串列實時通信協議; ( 5 )基本勾勒出整個控制系統的硬體和軟體設計基本框架,詳細描述一些實驗中的具體的細節問題。To accept the current signal from high negative voltage circuit, the analog ground is raised to a certain positive voltage, which makes it possible for the signal amplitude to be compressed at the same time of its polarity reversion. a pi control program special for laser gyro current control is brought forward according to the conventional pid control method, in which the control signal is figured out corresponding to the difference between the sample and the reference value by turn of proportion - short step integral - long step integral. and at the end of this paper, a comparison of system performance on different conditions is made and the key elements influencing system performance are educed
利用集成a / d 、 d / a轉換器的新型晶元aduc824 ,實現了電流(電壓)采樣?數據處理?電流控制的閉環控制結構;地電位的抬升解決了a / d轉換器對負高壓迴路電流采樣時的輸入范圍匹配問題;控制信號反相的同時進行幅度壓縮,使得輸出調整電壓的解析度提高;根據常規的比例?積分?微分( pid )調節模型,針對陀螺系統的特性,給出了一種可以滿足系統要求、據采樣值偏差大小進行的比例?大步長積分?小步長積分、分層次比例?積分演算法;不同條件下系統穩流性能的對比、分析在論文最後給出,並據此找出了決定該系統穩流精度的關鍵因素,提出了系統的改進意見。The concept of viffoal laser frequency stabilizaion is put fowi. the frequency stabilizaion at the center of doppler curve has been realized aller signal detecting, phase sensitive detecting, integrating and high voltage amplifying circuits with fm spectroscopy a frequency stability of l0 -, has been obtained with a reproducibility of l0 - 9. hyperfine spectra of, ', i, near 532nm have been studied via modul8tion tfansfer spectroscopy
利用fm光譜法將激光單次通過碘吸收室進行線性吸收,再經信號檢測、混頻、積分和高壓放大等伺服電路,實現了在多普勒曲線中心處的頻率穩定,頻率穩定度和復現性可達10 ~ ( - 9 )量級。Based on the pre - amplifier circuit board of the data acquisition & control ; system of the industrial ct, this paper explains how to use cpld to control the timing of ddc112
摘要結合工業ct的數據採集控制系統的前置放大器電路,分析了利用cpld對電流積分型前放晶元ddc112進行邏輯控制的方法。The improvement can also be used to correct total differencial and integral errors caused by pre - amplifier, linear amplifier, shaping circuit, peak stretcher and holder as well as adc at the same time
這種方法也可校正由前置放大器、線性放大器、成形電路、峰展寬電路和模數變換電路等共同造成的微分非線性和積分非線性。A new method for calculating the strain energy release rate of delamination crack propagation at an interface between dissimlar materials was suggested by using the j - integral with a small flat rectangular contour near the crack tip
提出了一種通過特定的扁平小矩形路徑j積分,計算電子封裝中異質界面分層裂縫擴展能量釋放率的新方法。The exact design methods of switched - current filters are summarized, such as the director synthesis of z - plane, euler mapping, state variable analysis, matrix decomposition, and signal - flow - graph simulation of the lc and switched capacitor prototypes. at the same time, a modified left decomposition matrix method is proposed to overcome the usual problems of large silicon area, high sensitivity and component spreads by minimizing the input circuits. examples of switched - current low - pass, high - pass and band - pass filters are given to verify the feasibility of these methods
總結分析了實現高精度開關電流濾波器設計的各種實用方法,包括z域綜合法、歐拉映射法、模擬無源lc網路和開關電容網路的狀態變量法、矩陣分解法和信號流圖轉置法,並對左分解法加以整理改進,提出一種更為簡潔的設計結構,通過減化輸入電路克服一般電路中存在的佔用矽片面積大、靈敏度高等問題。The round contour integration method is proposed to accurately simulate the currents on conducting thin - wire by using the subsell technique in the finite difference time domain fdtd method
提出了在時域有限差分fdtd方法中應用亞網格技術精確模擬細導線上電流的改進方法圓形積分迴路法。Circuit design is the basis of design of demultiplexer. speed, power and chip area are the main factors that should be considered in circuit design. every circuit structure has its merits and drawbacks, e. g. cmos logic family has a slower speed, but lower power, smaller area, scfl ( source couple fet logic ) family has a higher speed, but higher power, larger area. we should choose a proper circuit structure or their mixed structure for certain design to get a good tradeoff among the three factors. flip - flop is the fundamental element of demultiplexer, setup time and hold up time are key factors, which influence the speed of circuit, thus the design aim is how to reduce them. in this thesis we place emphasis on the design of scfl latches
速度、功耗、面積是電路設計要考慮的主要因素,不同的電路形式具有不同的優缺點,如cmos互補邏輯電路功耗低,面積小,速度相對較慢; scfl (源極耦合fet邏輯)電路速度高,功耗和面積較大。所以要針對具體設計需要選用適當的電路形式或其組合結構,以滿足設計要求。觸發器是分接器的基本組成單元,建立時間和保持時間是影響電路速度的關鍵,所以減小建立時間和保持時間是觸發器設計的主要目標,本文著重介紹了scfl鎖存器的設計和優化方法。After studying a lot of documents, we present a speed - estimating method for direct torque control system. this method is based on the theory of dtc, but it takes advantage of the convenient of both the theory of dtc and the theory of foc. we need only to sample the stator ' s current to estimate the speed of the rotor, at the same time the integration of the voltage is avoided
在研究大量文獻的基礎上提出了一種適用於交流電機dtc控制系統的轉速計算方法,該方法以dtc控制為中心,結合dtc和定子磁場定向和轉子磁場定向各自的特點,綜合利用各自的有利之處,只需測量定子電流,避免了對電壓積分,思路清晰,計算簡單。4. designed and developed the soft hardware of the control system of moving window algorithm on the basis of vehicle acceleration, and formed an integrated system with the equipment ’ s mechanical structure
4 .設計開發了基於車輛制動加速度的移動窗積分演算法的控制系統硬體電路及軟體程序,使其與該裝置的機械結構形成一個完整的系統。分享友人