比較電位計 的英文怎麼說

中文拼音 [bǐjiàodiànwèijì]
比較電位計 英文
comparison potentiometer
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 較 : Ⅰ動詞1 （比較） compare 2 [書面語] （計較） dispute Ⅱ副詞（比較） comparatively; relatively; fair...
  • 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...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 比較 : 1 （對比） compare; compare with; contrast; parallel （with）; comparison; by comparison; in comp...
  1. Methods : after cultured scs combined with fn were grafted into hemi - resected lumbar spinal cords of adult rats, we used surface recording of spinal cord evoked potential ( scep ) and image analysis system to compare the latent period of scep and count the axon number between the therapeutic group and the control group

    方法：將體外培養的雪旺細胞結合纖連蛋白植入大鼠半切損傷的脊髓內，用脊髓誘發電位及圖像分析方法比較治療組和對照組誘發電位潛伏期，再生軸突計數及二者間的關系。
  2. Focusing on the tactical index of ew system - bearing accuracy, this article makes deep - through analysis, comparison and study of the theory basis for traditional direction finding method. a 16 - channel monopulse amplitude - comparison direction finding method and new phase - delay estimating method has been proposed to use, through computer ' s analog computation and relative measures in actual engineering practices, the bearing accuracy of traditional method has been increased and the service requirement of the ew weapon system and adaptability of equipment satisfied

    本文圍繞著電子戰武器系統的戰術技術指標?測向精度，對傳統的測向方法的理論基礎進行了深入的分析、比較和研究，提出了採用16通道單脈沖比幅測向體制和新的相位延時估算方法，通過計算機的模擬摸擬計算，以及在實際的工程實現中採取的相關措施，解決了採用傳統的測向方法提高測向精度，滿足電子戰武器系統的戰術技術指標要求和裝備的適裝性。
  3. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。
  4. It creates the model of layer soil by using the cdegs software, analyses the resistance error which is measured by traditional three - poles way, measures the grounding grids resistance and soil resistance rate of hejin power plant, creates the electromagnetic model of layer soil and grounding grids model of hejin power plant, calculates the step voltage > touch voltage n voltage distribution of earth surface in fault of hejin power plant. in the end, it compares the measuring value and calculating value of grounding grids resistance in hejin power plant

    本文利用cdegs軟體建立分層土壤接地模型，對傳統三極法測量接地電阻誤差進行分析；對河津電廠接地網接地電阻和土壤電阻率進行測量；建立河津電廠分層土壤電磁模型和接地網模型；計算河津電廠接地網電阻和事故狀態下跨步電壓、接觸電壓和地表電位分佈；最後對河津電廠接地網電阻實測值與計算值進行比較分析。
  5. Comparing and analyzing the synchronous control strategy, which brings up the new method to control the double un - symmetry jars proceed synchronously with the combination of proportional valve and servo valve, which forms closed loop control ; basing on the above methods, models are made to get mathematics models of position control system and to analyze system model theoretically by using pid controller, we can realize regulating parameters, minimizing synchronous errors and enhancing the dynamic performances ; the simulink tool box in matlab software is used to imitate the system according to the model, which not only makes the result visual and easy to adjust the parameters in interactive way but also lets us understand the effects of different parameters and optimizes the dynamic properties. the theory of plc control in dshp is discussed after advanced understanding of the system movements. hardware design and general regulation are given on the base of siemens company products s7 - 200 plc

    本文根據大量的國內外文獻，對研配液壓機的工作原理及設計結構進行了簡介；對位置同步的控制方法進行了比較分析，提出比例閥和伺服閥復合控制的閉環結構來對非對稱雙缸進行同步控制電液比例同步控制方案；在此基礎上著重對比例閥控非對稱缸建模，最後得到位置控制系統的總體數學模型，從理論上對同步系統動態特性進行了分析，並用pid控制器進行參數整定，減小雙缸同步誤差、提高系統的動態響應性能；其中控制性能的分析藉助于matlab軟體中的simulink工具箱，由已建立的數學模型形成模擬模型，得到可視化的模擬結果，從而利於交互方式下調整參數，了解不同的參數對系統的影響，優化同步系統的動態性能；在深入了解系統的動作特性后，對plc控制研配液壓機的原理進行了探討，針對siemens公司s7 ? 200型plc給出了硬體設計的總體規劃，編制出研配液壓機動作控製程序，在編程中著重研究位移傳感器與plc的通訊、雙缸同步運行的pid控制在plc上的實現及bcd碼撥盤輸入程序的植入問題。
  6. Considering slpmu - 025a produced by japan shinko motor company ltd. as our study project, this thesis presents a study on two - phase hybrid lsm, the study objects and some conclusions presented in the thesis are : ( l ) the 3d model of slpmu - 025a is formed by software maxwell 3d. then, the 3d magnetic field of the motor is analyzed by fem ( fenite element method ) analysis. here, the analysis of the magnetic field is in focus on the region of tooth - layer

    本文以日本神鋼電機株式會社生產的slpmu - 025a為研究樣機，對二相混合式直線步進電動機進行了研究，內容包括： （ 1 ）用maxwell3d軟體建立了slpmu - 025a的三維模型，通過有限元分析計算了電機的三維磁場，重點分析了電機齒層區域的磁場； （ 2 ）應用maxwell3d的后處理計算得到了電機的靜推力? ?位移特性，並與實驗進行了比較； （ 3 ）利用matlab中的simulink建立了動態模擬模塊，模擬了電機的部分動態特性，並用實驗進行了驗證。
  7. B ) equivalent circuit method and finite element analysis ( fea ) to compute the static force are presented, the results obtained by each method are compared one with the other. c ) the results of dynamic simulation by means of the software, ansoft show the hlfm " s characteristics when the motor works in the special frequency and single stroke and the conditions used for position control. d ) the measured static thrust - displacement characteristics and the dynamic characteristics during starting show good correlation with the calculated results

    在設計並製作了實驗樣機的基礎上所做的研究內容包括； （ 1 ）分別用能量法和麥克斯韋張量法推導電磁力的計算公式，並討論他們的不同應用范圍； （ 2 ）分別用等效磁路法和有限元法作直線力電機的靜特性分析，並比較分析它們的計算結果； （ 3 ）用有限元模擬軟體做直線力電機動態特性的模擬，分別分析直線力電機的頻率特性、動子開合閘特性和開環位置控制的工作特性； （ 4 ）做直線力電機的靜推力?位移特性實驗和動子開合閘的動態實驗，並將實驗結果與計算結果進行對比，實驗驗證了計算模型及計算方法的正確性。
  8. While with the super hige voltage power network gradually built and the structure of system becoming more complex, the calculation time of optimization increases when the number of buses that need reactive power compensation is relatively large. especially, when the positions of compensation are uncertain, selecting the position of compensation can reduce time when reactive power optimizing

    而且隨著超高壓電網的逐步形成，系統結構日趨復雜，需要安裝無功補償設備的母線比較多的時候，優化計算所需的時間將加長；尤其是在網路補償位置不確定的情況下，無功補償點的選擇就成為無功優化計算前節約時間的有效措施。
  9. Based on the project scale argumentation of letan hydropower station, the paper briefly introduces the main results of scheme ' s technical & economical comparison and the main factors of scheme option in the option and design stage of the normal storage water level and installed capacity, as well as the evaluating opinions given by the specialist group of project proposal evaluating committee ; the main technical characteristics for similar project scale argumentation are summarized up according to the project scale design argumentation of letan hydropower station

    摘要通過樂灘水電站工程規模論證，簡述該工程正常蓄水位選擇和裝機容量選擇設計階段方案技術經濟比較的主要成果、取捨方案的主要因素、以及項目建議書評估會專家組的評估意見；並根據樂灘水電站工程規模設計論證總結類似工程規模論證時的主要技術要點。
  10. During the process of measuring valve phase, the grating displacement sensor and photoelectric axis - angle encoder are applied to measure the displacement of valve and the angle of curving shaft respectively. their signals are sampled and imported into computer. then the three signals are compared to find the relationship of valve phases in order to offer the reliable measuring parameters for the researchers and quality controllers

    在氣門相位測量中，採用光柵位移傳感器和光電軸角編碼器，分別將發動機進、排氣門位移量和曲軸旋轉位移量的變化信號通過采樣，輸入計算機，對三路信號加以比較找出氣門的相位關系，從而為設計開發人員、品質控制人員提供可靠的測量參數。
  11. A new type of thin film laps based on chalcogenide glass - sensitive materials was developed by means of silicon planar technology and thermal evaporation technique. the physical layer structure and the stoichiometric composition of the deposited glass materials have been investigated using transmission electron microscopy. depending on the conventional " two - electrodes " measuring set - up, these novel thin film sensors possess certain sensitivity towards heavy metals of seawater

    在laps的原理和應用基礎上，我們還進行了基於laps （光尋址電位傳感器）的微結構重金屬離子傳感器的研究：包括laps的結構優化設計、 laps器件的微結構加工和工藝、針對被檢測的重金屬離子，採用硫屬玻璃等固態敏感材料，完成敏感薄膜分子合成的優化設計及與laps的界面結合的特性研究等，並將測量結果和體傳感器進行比較分析。
  12. The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field

    具體工作可以概括如下：首先，研究了vcsel的熱場特性，分析了電流擴展，材料參數和工作條件對于溫度分佈的影響；其次，從電極電壓入手，計算出激光器中的等勢線分佈，並對不同深度處的電壓和電流分佈進行比較，研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響；再次，實現了電、光、熱耦合，求出了閾值電壓，計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈，分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響；最後，給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈，分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。
  13. The static loading test for three group of testing piles of jiading power plant secend stage project are analyzed and studied in this thesis, and the practical applying of high - accurate data collector, technique of waterproof insulation and testing technique of burying in the body of pile are introduced also. the vertical and horizontal loading features of three group of piles of different kind and constructing technique in different earth layer at the pile point are analyzed and compared and summed up with basic integro - differential equation calculating the pile earth system load transmit, transforming principle of stress - deforming and pile body rating of burying electric measuring element. changing law of stress, and changing law of pile body shifting and bending for different testing piles under vertical and horizontal load are showed so that the loading features of soil layer and pile at testing spot, reliable design data for pile type and base for scientific construction technique are provided

    本文僅就嘉定電廠二期工程中的三根試驗樁的靜載試驗進行了分析和研究，利用樁土體系荷載傳遞分析計算的基本微分方程及應力-應變轉換原理，結合預埋電測元件的樁身率定，對三組不同種類、不同施工工藝、不同持力層中的樁的豎直、水平承載特性進行了分析、比較和歸納，通過大量、全面的實測數據，經過整理、轉換和推演，揭示了不同試驗樁在豎直、水平荷載作用下的應力變化規律和樁身變位、撓曲變化規律，最終提供試驗場地土層和樁的承載特性，為該工程合理設計樁型提供了可靠的設計參數，為確定科學的施工工藝提供了有力的依據。
  14. The software designs of the electrical servo system are completed using position loop, speed loop and current loop adjustment after the hardware designs are presented in details. also the efficiency of traditional pid control in practical actuator control system is compared with that of proportional - fuzzy - pid control. at the end of the paper, all factors to affect system performance are analyzed, and optimization designs are presented

    其次論文在詳細介紹舵機控制系統的硬體設計基礎上，完成了系統軟體設計，並採用了位置環、轉速環和電流環的三環控制演算法實現了舵機位置伺服功能，對傳統pid和比例?模糊? pid控制演算法在舵機控制系統中的實際應用效果進行了比較分析。
  15. Through analyzing and comparing, the results are presented below : that applying light structure design and selecting larger elasticity coefficient linear motor can improve greatly displacement output dynamic capability of positioning system and controlling precision of position motion, and this is helpful to meet the demand of increase productivity

    分析比較模擬試驗曲線可知：採用結構輕量化設計、選用較大彈性系數的直線電機等可以大幅度改善定位系統的位移輸出動態性能，提高定應運動的控制精度，並有利於滿足設備高生產率的需求。
  16. It can be used in any complex environment, can locate all paths from transmitter to receiver which avoid redundant calculation, and it is a standard 3 - d forecast model ; in addition, it is a point to point ray tracing method based on specular theory which do n ' t carry out the receive test ; furthermore the model adopt the reverse arithmetic which exert the tree concept in data frame and establish a virtual fountain tree permanently, the proagmme can back - search the virtual fountain tree when it is running. these operation increase the calculate speed and it result in the higher receive efficiency and precision. the thesis design a programme to compare the prediction results based on ray tracing method of virtual fountain tree between the measurement results and prediction results based on the other transmittion models. the comparsion result indicate the new model is a better model

    它可應用於任何復雜的傳播環境中，能找到發射機到接收機之間的所有電波傳播路徑而無須冗餘的計算，是一種準三維的預測模型；另外，從本質上講，它仍然是一種基於鏡像理論的點對點的射線跟蹤法，所以它無須進行接收測試；而且由於採用了反向演算法，運用數據結構中多叉樹的概念，先確定需要計算的場點位置，找出所有能從源點到達場點的射線，並且可一次性建立一個虛擬源樹，以後每次的計算只要通過對該樹進行後序遍歷即可，大大提高了運算速度，因而有較高的接收效率與精度。本文對該模型進行了相應的模擬，並將其預測結果與實測結果以及基於cost231經驗性模型和基於強力射線跟蹤確定性模型的預測結果進行了比較，結果表明了該模型的優越性。
  17. At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss

    然後對現有的演算法進行了詳細的分析、比較，篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案，確定了準同步采樣的方案，並通過對準同步采樣誤差的分析，提出了一種從45開始采樣，從而提高精度的采樣數據處理辦法，同時，對于電流互感器相位漂移提出了一種補償辦法，接著對裝置中電能質量分析與統計以及無功補償中電容器的補償量、投切原則也作了相應分析，其中對于無功補償採用y混合接線，並利用交流接觸器和固態開關共同投切電容，不但提高了經濟運行水平、改善了電能質量，而且有效的避免了頻繁更換開關，減少了經濟損失；最後，設計了裝置的硬體電路並繪制了相應的軟體流程圖。
  18. It can be seen from the measuring results that the deviation is litter than 10. 1 % when the estimate value of the nature radiation ' s kerma is compared to the average value gotten by standard ionization chamber, and the deviation is less than 16. 2 % when the estimate value of two groups of tlds those measuring radiation in laboratory is compared to the conventional true value in standard radiation field

    從參比單位給出的測量結果看出，天然環境輻射比釋動能測量的評定值與標準電離室測量的平均值比較，其偏差好於10 . 1 % ，實驗室射線照射組兩組熱釋光劑量計（ tld ）測量評定值與標準輻射約定真值偏差好於16 . 2 % 。
  19. In this article, we compare scm with dsp in their architectures and operation speeds and design a motion controller based on the 16 - bit fixed - point digital signal processor tms320lf2407a, by which we realize the controls of eight axes of step - by - step motor or servo motor

    本文通過比較單片機與dsp晶元的體系結構與運算速度，設計了一種基於ti公司的16位定點數字信號處理器tms320lf2407a的八軸步進/伺服運動控制器，實現了對步進電機和伺服電機的運動控制。
  20. This method is especially simple and easy to implement. furthermore, it fully capable of tracking digital control signals carried by 4 ~ 20ma analog signals ; during software development phase, we have completed signal collecting, lcd displaying, d / a converting of hart signal and ieee - 754 32 bit float point conversion. we used a simplified method in ieee - 754 32 bit compatible float point conversion based on the 24 bit integer and 16 bit decimal computation

    在hart信號的解調外圍電路中採用遲滯比較電路實現波形的轉化，這種方法簡單、易實現，完全能夠跟蹤加載在4 20ma模擬信號上的數字控制信號；在軟體設計中，完成了hart信號的採集編程、 lcd顯示編程、 d a轉化控制編程和ieee - 75432位浮點數的轉化編程， ieee - 75432位浮點數轉化編程採用的是在最多滿足24位整數位和16位小數位的基礎上的一種簡化演算法。
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