正反計數器 的英文怎麼說

中文拼音 [zhēngfǎnshǔ]
正反計數器 英文
reversible counter
  • : 正名詞(正月) the first month of the lunar year; the first moon
  • : Ⅰ名詞1 (方向相背) reverse side 2 (造反) rebellion 3 (指反革命、反動派) counterrevolutionari...
  • : 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...
  • : 數副詞(屢次) frequently; repeatedly
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 正反 : positive and negative
  • 計數 : count; tally; counting計數卡 numbered card
  1. In the hardware design, the paper completes modules ’ design like outside memory, patulous a / d, patulous d / a, rs232 communication, ecan communication, led control, keyboard control, distant control, emulation, reset, logic voltage switch, dsp supply power regulate and ac - dc power circuit, as well as room layout design like anterior panel, back panel etc. and dsp transfers data with peripheral equipments except outside memory using serial ports. besides, the whole circuit is configured in interrupt response. thus, it can meet system demand as well as take full advantage of tms320f2812 ’ s hardware resource. in the software design, the paper finishs programs like the interface programms intercommunicates with people, the distant control program, ad and da modules ’ control program, in addition, the paper select the velocity and acceleration state - feedback algorithm and is written in the program. the software design uses dsp integrate exploiting environment named ccs2. 2 of ti inc. as software instrument, and programs with the combination of c language and assembly language. moreover, in order to maintenance or modify the software expediently and shorten software ’ s exploitation time, the design adopt software modularization technique. finally, some air cylinder experiments are carried out to proved that the pneumatic controller is very practical

    在硬體設中,本文完成了片外存儲擴展、 a / d擴展、 d / a擴展、 rs232通信介面、 ecan通信總線介面、液晶顯示控制、鍵盤控制、遠程控制、模擬、復位、邏輯電平轉換、 dsp工作電源校電路和ac - dc電源等模塊設以及控制前面板、後面板等的空間布局設。其中dsp與除外部存儲的外圍設備之間的據傳送全部採用串口通信,同時系統電路配置成中斷響應方式,這樣既滿足了系統要求,又充分利用了tms320f2812的硬體資源。在軟體設中,本文完成了人機界面功能模塊、遠程控制模塊、 ad擴展模塊、 da擴展模塊、速度和加速度狀態饋的控制演算法的程序設
  2. Control system by using of japanese p. l. c system and servo electrical drive system by using of west germany basic design in order to the cutting length, square, tension control and sheet counting can be operated directly through operator and machine interface, are equipped with automatic shutdown function and also the speed, the amount of reams, the square of decurler, cutting size, breakdown can be dispayed clearly. easier for controlling the operation

    控制系統採用日本系統及西德伺服電機設理念,使紙張裁切的長度菱角的方張力的控制及張可透過人機界面直接輸入,並有自動停機的功能設,此外還可顯示速度令之工作角度總切斷張據,以及運轉故障之顯示,有助於機維護工作的進行。
  3. For proper operation the forward and reverse direction-control inputs must always be complementary.

    要使常工作,向和逆向控制輸入電平必須始終相
  4. The sample with low emitter efficiency has completed as the method of above. this lead to the greatly decrease of the reverse recovery time and the low reverse leakage and forward voltage, especially the excellent temperature character of the leakage. the test date shows that the samples reach the first class of international level

    本論文作者通過模擬測試,驗證了課題研究的理論設想,並設製作了具有低陽極發射效率結構的高壓功率frd ,利用局域鉑摻雜和電子輻照相結合的壽命控制方式,實現向恢復時間的極大減小,並且向漏電流、軟度因子、向壓降等關鍵參也較理想,且具有極佳的漏電溫度特性,達到件綜合性能的優良折衷,達到國際先進水平。
  5. The topologies family include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits. taking full - bridge mode circuit as an example, the operational mode, steady principles, transient voltage feedback control strategy of the converter are investigated. the output characteristic curve, the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1 / n times line voltage frequency are given

    該電路拓撲族包括單四象限功率開關式、推挽式、半橋式、全橋式電路,以全橋式電路為例分析研究了這類換工作模式、穩態原理與電壓瞬時值饋控制策略,給出了變換的外特性曲線、關鍵電路參、與電網電壓n倍頻或n分頻信號同步的基準弦電路的設
  6. The random mathematical model is described using equivalent markov equations. the time and state parameters are discrete. based on the model, the flow rate distributions along radial and average at any height can be calculated directly, moreover, the probability transition matrix of the flow can be determined via the statistic character of the random cumulate particles, and be corrected by s. cd the random theoretical model shown in fig. l, the section of the bed of tbr is divided into a series of concentric circles

    一、在常溫和常壓下進行滴流床流率分佈的研究,以狀態離散、時間離散的齊次markov過程描述了滴流床在滴流區的流率分佈,建立了滴流床在滴流區流率分佈的隨機模型,根據此模型可以: 1 、可直接確定任一高度下的液體徑向流率分佈及平衡流率分佈; 2 、液體流動的概率轉移矩陣可由隨機堆積顆粒的統特性確定,以參s修
  7. In spite of these advantages, we should concentrate on how to extend the representation of modes, how to apply to unstructured grids, etc. and when combining pod and saa, it is necessary to know how to represent the shape and how to control the range of seeking and iteration number

    但在研究的過程中,我們發現交分解方法也存在如下問題:如何增強基模態的表達能力,如何將該方法應用於非結構網格的算等。在利用模擬退火演算法結合解算進行翼型時,則需要考慮如何表達幾何外形形狀,怎樣控制搜索范圍以及如何減小搜索次等實際問題。
  8. The innovative ideas in this paper are that robust h control theory based on conventional ip controller is applied to the high - precision feed of a single axis, and the controlled plant is composed of ip velocity loop and two - order model of linear motor. a constraint condition on y in the problem of h2 / h is deduced from the frequency criterion of riccati equation, which makes the repeated computation on r simple. considering the two - loops control problem, the h state feedback controller based on ip controller as the inner controller is applied to satisfy the velocity performance of the system, and a pi controller, the external controller, is used to satisfy the position performance

    本文的創新之處在於將傳統的ip速度控制和直線電動機的二階模型作為一個廣義的被控對象,利用魯棒h _控制理論設了一個h _狀態饋控制,以此解決高精度進給的控制問題,並在此基礎上研究了h _ 2 h _混合控制問題,結合h _代riccati方程定鎮定解存在的頻率判據,推出了一個控制存在的約束條件,使以往須復試探的,有了更進一步的約束范圍,簡化了算。
  9. From a modeling of an active magnetic bearing ( amb ), a numeric controller was designed with degrade observer and optimized feedback control. it was proved out with simulink in matlab

    本文通過對主動磁懸浮軸承系統的建模,設了帶降維觀測的最優字控制,並在模擬中驗證了控制確性。
  10. The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii. the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method, and improve the complex modal response spectrum, which can apply to design of non - classical damping systems ; iv. for exerting the energy dissipation capability of each device, a two - step optimum method, whose controlling function is extremum expectation of interbedded displacement, is put forward to optimize the number and position of device ; v. the problem of iterative method applied to analyze energy dissipation systems is indicate, and give some primary advice based on pilot study

    為改善上述缺點,本文進行了以下的研究工作:在忽略耗能附加質量的基礎上,推導出適用於耗能減震結構的攝動法,減少振型分解法在迭代算過程中的工作量,加快算速度;針對運動方程的強行解耦所產生的誤差,根據攝動法原理,對其進行一階攝動修;為消除強行解耦振型分解法用於非比例阻尼結構分析時產生的誤差,引入狀態空間對系統進行復模態分析,並改進了基於復模態理論的、適用於非比例阻尼結構設的雙應譜方法;對于耗能量和位置優化進行了一些探討和研究。
  11. One dimension river flow roughness parameter inverse analysis kalman filter is introduced into the model to solve stochastic error in observed data. applying kalman filter automatism revising system, dynamic roughness course is obtained. using dynamic roughness course the model result precision is improved, it is more consistent with observed data

    對於一維河道糙率參分析,針對觀測資料存在的隨機誤差,引進卡爾曼濾波的自動校系統,求解出河道糙率變化的動態過程,使用動態糙率算,明顯改善模型的模擬精度,使模擬過程和觀測過程很好吻合。
  12. After introducing the background and the trend of research on ppv thin film light - emitting diodes ( leds ) and the structure of ppv device and its characterizes, the theoretical model of the leds * light - emitting efficiency was presented. based on this model, the formula of light - emitting efficiency was deduced to be : the injecting - currents and the recombining - efficiencies were calculated nwnerically, we found the calculated results agreed very well with the experimental results under the electric field from 0. 5 x 106 to 1. 5 x 106v / cm, the numeral calculations and theoretical analyzes of the light - emitting efficiency were done. the conclusions were as follows : ( 1 ) the basic mechanism of the injection transportation and recombination of the carriers which were presented in this paper were proved to be right ; ( 2 ) the electroluminescence in ppv thin film is the result of exciton recombination, the light - emitting efficiency was affected by many factors

    本文主要研究聚對苯乙炔( ppv )薄膜發光二極體發光效率及主要影響因素,簡單地介紹了ppv薄膜發光二極體的研究背景及發展趨勢、 ppv件的結構和性質后,提出了一個件發光效率理論模型,利用這個理論模型得出了發光效率公式的表達式:並對注入電流、復合效率等進行了算,通過合理地選擇算參,發現算值在場強為0 . 5 10 ~ 6 1 . 5 10 ~ 6v / cm的范圍內與實驗結果較好地符合,在此基礎上,對發光效率進行了算和理論分析,結果表明:算結果與理論研究結果相符較好,得出結論如下: ( 1 )本文的理論推導確地映了件中載流子的注入、傳輸和復合等基本機制; ( 2 ) ppv薄膜中的電致發光是激子復合的結果,發光效率受多種因素影響。
  13. The algorithm of strapdown inertial navigation system is also discussed and then use the flight - track generator to give a simulation, since a closed loop feedback integrated navigation system is designed in this paper, and the output of the filter must feed back to the strapdown inertial navigation system, the analysis of the algorithm in strapdown inertial navigation system is important. the scheme to design the trajectory of gps and the simulation of gps constellation are then studied, the simulation of gps constellation is given from the calculation of vernal equinox base on the principle of celestial mechanics, this method of different from other methods given by other paper and is useful to the research of satellite navigation system. a new method to abstract noise modal in integrated navigation system is proved to be useful in practice, this method, which is given by use the principles of stochastic processes, statistics, time series analysis, and system identification, is suitable for the kalman filter in integrated navigation system

    如航跡產生的設,該航跡產生是研究組合導航問題的前提,從國外一些研究組合導航系統的文獻中可以看出,設這樣一個航跡產生是非常必要的,所以本文自行設了這樣一個系統;還討論了捷聯慣性導航系統中捷聯解算的方法,並進行了模擬研究,由於在本文設的閉環饋式組合導航系統中,對捷聯慣導系統的平臺誤差進行閉環控制,需要將濾波輸出的校饋到捷聯解算內部,所以必須對捷聯解算進行深入的研究和分析,更何況捷聯解算問題本身也是導航界的一個熱門研究課題;另外,本文還介紹了gps軌道及其星座模擬的設思想和方案,與以往gps軌道和星座模擬不同的是本文從天體力學中算春分點開始,逐步進行gps軌道及其星座模擬,這樣的設方法對從事衛星導航的研究工作是有價值的;還對組合導航中誤差建模方法進行了研究,綜合運用隨機過程、概率統、時序分析及系統辯識等方面的理論提出了一套適合組合導航卡爾曼濾波的誤差建模方法,並運用實際研究工作中的測量據對該方法進行了驗證。
  14. Backward - forward counter

  15. Using fourier transformation computational method, the fir filter was designed. the acceleration signal dynamic error was revised through the fft 、 ifft and frequency correction in the operating frequency scope. the signal processing had been realized on dsp, and the signal data was really recorded

    應用傅里葉變換的算方法,並且完成了fir濾波的設,通過傅里葉變換和頻率補償實現工作頻率范圍內加速度信號動態誤差修,在dsp上實現了信號處理,真實地記錄了信號據。
  16. According to the patient ’ s condition, the physician can control the device such as connecting and installing the channels and disposing drugs by selecting the appropriate therapy mode menus on the touchscreen, and then he / she can adjust or set parameters for the control system and the thermostatic incubator by selecting the appropriate menus. then, the directives are given to run the control system and the thermostatic incubator, and the working status of the control system and the thermostatic incubator can be monitored by various sensors. the computer receives the feedbacks from sensors and compares the parameters with the set ones, and finally compensatory control is conducted or alarms sound

    醫師根據患者的病情,在算機觸摸屏菜單上選取相應治療模式,根據觸摸屏上的圖示,進行管路連接安裝,藥物布置等處置,完畢后再根據算機上菜單調整設定運行的控制系統、恆溫培養箱等相關參,無誤后,確認輸出驅動指令,使相關控制系統、恆溫培養箱等在接到指令后進行工作,工作狀態可由各種傳感連續測試並將所得參信號饋回算機,算機控制軟體將所得測試參與設定參比較后,自動進行補償控制或報警提示,使用者根據觸摸屏上所顯示的提示內容,進行修
  17. In this paper, a aero - engine performance tracking filter is designed by kalman filter algorithm. the filter estimate the ecdp ( engine component deviation parameters ) which reflect the deterioration of engine and the variation between engines. the estimate parameters are used to tune the embedded model to make the model consistent with the engine which respect

    本文利用卡爾曼濾波原理設了發動機性能跟蹤濾波,對映發動機性能退化和不同發動機之間性能差異的部件性能偏離參( ecdp , enginecomponentdeviationparameters )進行估,用估值修機載模型,通過修後的模型算發動機性能參的變化。
  18. Of course, you can run loops backward instead of forward, or increment the loop counter by something other than 1, or even eliminate the loop counter completely as you do in a

    當然,也可以向而不是向運行循環,或者使用1之外的循環增量,甚至像
  19. By solving the christoffel equation, the relationship between velocity and angles is obtained, and the ultrasonic inverse velocity curve is illustrated. the dixon equations of ao diffraction on the xoz and yoz planes in ln crystal have been applied to obtain the geometric relationships of acousto - optic interaction. therefore, the beam steering theory is proved to be a possible way to do the optimum design of ln anisotropic acousto - optic deflector. the detailed parameter data and the figures on the xoz and yoz planes with the angle of incidence of - 5 degree are shown up, which will contribute to the desigh of aod

    對鈮酸鋰超聲跟蹤常聲光偏轉進行優化設,經研究算得到了分別在入射角取- 5o時xoz與yoz工作平面中負一級衍射中分別使用快切變波與慢切變波的情況下,優化設鈮酸鋰超聲跟蹤常聲光偏轉的設,對聲光偏轉生產設有實際參考意義。
  20. Transformer tap position changes frequently in power systems. if control center does n ' t receive correct network parameters, se ca n ' t get the real network states

    系統中變壓抽頭位置的變化十分頻繁,若調度中心不能及時得到確的網路參,狀態估的結果將不能真實映當時的網路狀態。
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