置換調制 的英文怎麼說

中文拼音 [zhìhuàndiàozhì]
置換調制 英文
permutation modulation
  • 置 : 動詞1. （擱; 放） place; put; lay 2. （設立; 布置） set up; establish; arrange; fix up 3. （購置） buy; purchase
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 置換 : displace; substitute; supersede; substitution; replacement; permutation; transposition; transposi...
  1. In designing analogic circuit, we adopt programmable filter max262 to meet the system ' s command. after the step, we can make the signal ' s frequency width is wider and noise level is lower. to make the signal ' s amplitude to meet the analogic to digital device ' s command, we adopt the max551 to finish the gain control

    在模擬電路部分，採用可編程濾波器max262 ，這樣就滿足了該數據採集裝置所採集的信號的頻率范圍較寬以及具有較低的噪聲水平的要求，為了使采樣到的信號的幅度滿足後面a d轉換器的要求，採用max551對采樣到的信號進行調理（增益控制） 。
  2. The device mainly consists of integrated phase - shift trigger unit, detection unit, amplification and impedance conversion unit, the smallest excitation limitation unit, reactive regulation unit and three - phase controlled bridge rectifier

    本裝置主要包括集成移相觸發單元、檢測單元、放大及阻抗變換單元、最小勵磁限制單元、無功調查單元和三相全控橋。
  3. It could be used for simulating study in aeronautical weapon. there is a set of hold - range transfer mechanism and friction drive system in the equipment. it also used a set of hydraulic system to drive the equip in right position for multiple parameters detecting and made extrusion stress in limited range

    在裝置中，採用了同步帶傳動機構及摩擦驅動裝置，並採用了液制系統進行驅動檢測參數要求的換位和摩擦輪的壓力調節，保證了檢測裝置的正確位置和摩擦輪接觸正壓力的有效工作范圍。
  4. Some studies on control modes of the system, especially on a dc, pm, brushless and sensor - less motor driven systems. a method of rotor position identification without sensors has been developed. using a microchip to increate system efficiency, anti - disturbing ability and reliability of pwm modulation

    研究了適于直流、無刷、永磁、無位置傳感器電機轉子位置的檢測方法；採用單片機實現了該種電機的運行控制，提高了系統在pwm調制時位置檢測換相控制過程的抗干擾能力。
  5. The recovery of atmospheric light oil yield of atmospheric in the northern atmospheric distillation tower of shenghua teaching & test factory, science and technology group of china university of petroleum has been increase by about 4 or 5 percent through the following methods : changing the tray perforation of atmospheric tower, adjusting the amount of stripping steam and the outlet temperature of the atmospheric heater and merging atmospheric excess vapor into 3rd atmospheric drawn - stream to keep the fractions content of bottom oil below 5 % before 350

    摘要中國石油大學科技集團勝華教學實驗廠北常減壓蒸餾裝置換煉勝利管輸油后，通過改變常壓塔塔盤開孔率、調節常壓塔汽提蒸汽量和常壓爐出口溫度、常壓過汽化油併入常三抽出線等措施，控制常壓塔底油350前餾分含量小於5 % ，使常壓輕質油收率提高約4 % ~ 5 % 。
  6. At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder

    硬體方面，採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控制和驅動功能;採用脈寬調制技術和cmos互補h橋驅動技術實現了直流伺服電機的控制和驅動功能;採用d / a轉換器實現了交流變頻器的控制功能;採用數字化相位檢測技術實現了感應移相器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。
  7. In order to ensure the whole system operate economically, power department equip transformer with onload tap changer and shunt capacitors for most distribution substations, according to the operating condition, adjusting the position of transformer taps and capacitors can control the variation of voltage and reactive power exchanger of distribution substations and power system in certain extent

    為確保整個系統運行經濟性，降低網損，電力部門在大多數變電站配置了有載調壓變壓器和並聯補償電容器組，根據運行情況適當調節變壓器分接頭的位置和投切並聯補償電容器組，可以降低電壓變化和變電站與系統的無功交換控制在一定的范圍內，確保供電質量和電網運行的經濟性。
  8. The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80c196kc to organize the system frame, desiging the minimum system of single - chip microcomputer, multifunction i / o interface circuit, relay switch circuit, keyboard and display circuit, multifunction digital setting interface circuit and so on, utilizing the hso and hsi interface circuit which are owned by this single - chip microcomputer exclusively and its powerful command system to realize dual - degree switch control, automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control, on the basis of above, the system also have the function of running according to the setting steps and the frequency, voltage and current to display through the led, etc

    系統基於斬波恆流驅動技術，按照頂層設計思想，採用先進的專用細分控制電路和功能強大的80c196kc單片機來組建系統構架，設計了單片機最小系統、多功能i o介面電路、繼電器切換電路、鍵盤顯示電路和多功能數字設定介面電路等，利用該單片機獨有的hso和hsi介面及其強大的指令系統，實現了雙余度混合式步進電動機的余度切換控制、自動定位、零位自動搜索、停機鎖定、數字化頻率設定、自動調頻變速控制、細分方波切換控制，在此基礎上，該系統還設有按預置步運行、 led頻率電壓相電流顯示等功能。
  9. The microprocessor is used to realize digital control as flip plus of the scr. the ic chip sa866ae of mitel company is utilized as the low frequency signal generator of the system. furthermore in the zero - current detection circuit, use the photocoupler gaalas ired and photo ic to detect zero - current, furthest shorten the commutating " died region ", prevent the current from distorting

    設計中採用單片機控制可控硅的觸發脈沖，實現數字化控制，並利用mitel公司的三相pwm交流電機脈寬調制晶元sa866ae ，成功研製了交-交頻器中的低頻信號發生器裝置，效果良好；此外利用用光電檢測元件進行系統零電流的檢測，盡可能地縮短換相死區，防止電流發生畸變，成功地解決了原有低頻電源系統中存在的兩大難題。
  10. The main module of sensorless pmsm vector control such as voltage sensing, current sensing, smo rotor position estimation, speed calculation, generation of sine and cosine, vector coordinate transformation, pi regulators, svpwm vector modulation are all accomplished in the pwm interrupt service routines

    永磁同步電機無位置傳感器矢量控制的主要模塊如電壓采樣、電流采樣、滑模轉子位置估算、速度計算、正餘弦值生成、矢量坐標變換、比例積分調節器、空間電壓矢量脈寬調制等都是在pwm中斷服務子程序中完成。
  11. Firstly, the basic theory of switch reluctance generator ( srg ) is discussed in detailed, based on the mechanism electric energy converting analysis, non - linear analysis and non - linear simulation. three control methods of srg ( angle position control method, current chopping control method, pulse width modulation control method ) are deeply studied and analyzed. the electronic controller, which controlled by dsp or by hardware circuit are developed for low - power switched reluctance generation system

    首先系統地研究了開關磁阻電機發電運行的基本理論，從機電能量變換的角度分析開關磁阻發電機的機電能量變化規律；通過非線性分析和非線性模擬方法，明晰開關磁阻電機發電本質，概括出開關磁阻電機發電運行的特點；系統、深入地研究了開關磁阻電機發電運行的控制方案（角度位置控制、電流斬波控制、脈寬調制控制） 。
  12. It is the first time that driving chip used by pdp is applied to the fed panel. by adopting the new ic and the novel driving method, the developed grey scale modulator achieve high flexbility, stability and high integration. the circuit system includes cyclonetm fpga from altera and stv7610 from st microelectronic. with the capability of generating two kinds of modulating waveform, it has the advantages of flexible configuration, high display - quality, high integration and low cost. fpga design is based on the quartus platform. data transforming and the system controlling are achieved by using single fpga

    基於altera公司cyclone系列fpga和st公司stv7610驅動晶元設計的fed顯示器的灰度調制電路系統可以支持兩種調制波形，具有配置靈活，顯示性能好等優點，其集成度為原有系統的三倍，且造價更低廉;基於quartusii軟體平臺進行了fpga的系統開發與優化，採用單片fpga完成了全部的數據轉換和系統控制功能， fpga的可編程特性使系統的設計具有充分的靈活性和可擴展性。
  13. Presents the use of ice thermal storage technology in public buildings, the proper collocation and control of ice - coils, base - load refrigerating machines, dual - condition refrigerating machines, plate heat exchangers and circulating pumps, and the air conditioning system design when excess heat exists in inner zone

    摘要介紹了冰蓄冷技術在大型公共建築中的應用，冰盤管蓄冰槽、基載主機、雙工況主機、板式換熱器和各種循環水泵的合理配置和控制要求及內區有餘熱時的空調系統設計。
  14. On the other hand, under land marketing mechanism, the land price law plays an important role on readjusting land function on the reverse, it promotes the adjustment on urban land distribution planning. s o it becomes a guide in urban land planning through analyzing on land value rank

    另一方面，在土地市場化經營條件下，地價規律對城市用地功能重組及用地置換的作用也日漸顯著，反過來推動了城市用地布局規劃的調整，使規劃限制因素大大減少，因此可以通過土地價值級差分析指導城市規劃。
  15. The study of the indoor moisture distribution was done in this paper through a numerical simulation of a representative office. the result showed that the stratification phenomenon also exists for the moisture. similar to heat pollutant, we consider only the humidity desire in working zone

    本文模擬了一間置換通風辦公室的濕度分佈情況，結果表明：置換通風房間內的濕度也同樣存在層狀梯度分佈，這一特性使之非常適合於熱濕同源的場合，系統在濕度控制時只要保證工作區的濕度能滿足要求即可，使空調系統在節能上有了新的空間。
  16. Urban land purchase & reserve system ( ulprs ) is such a management institution that organizations entrusted by city government, such as land reserve center, collect the lands using by different users through such ways as expropriate, purchase and replacement, then turn them into processed land through land renewal and exploitation, and provide them to market designedly to meet the needs of all kinds of construction demand through ways as bidding and auction according to all the year urban land plan

    城市土地收購儲備制度是指由城市政府的委託機構，如土地儲備中心，通過徵用、收購、置換等方式，將土地使用者手中分散的土地集中起來，進行土地整理和開發，在完成一系列前期開發整理工作后，變成可建設的「熟地」 ，根據城市土地年度計劃，通過招標、拍賣有計劃地將土地投入市場，以供應和調控城市各類建設用地需求的一種經營管理制度。
  17. The article pointed out that the essence of this market is a place used for exchanging various accounting information which going on the market ( static state description ), and the sum of various exchanges relations. it ' s a mechanism that takes effect in the disposition of society resources and adjusting the enterprise financial affairs relations ( trends descriptions )

    文章指出會計信息市場的本質是用來交換各種會計信息的場所及其各種交換關系的總和（靜態描述） ，是一種引導社會資源有效配置和調整企業財務關系的機制（動態描述） 。
  18. It is one of the important parts for the control of hupqc to detect the reference compensation signal. the predictive strategy is presented based on wavelet theory, that means tracing the fundamental signal and replacing with sampling data every half cycle. the fundamental signal is forecasted step - by - step in a half cycle earlier

    補償指令信號的檢測是電能質量調節裝置的控制環節之一，本文提出了基於小波理論的預測檢測策略，跟蹤基波信號，以半周期為采樣更新速度，應用小波變換法對信號的基波分量進行遞推式預報，並取其與實時信號之差做為參考，然後產主與之大小相等、相位相反的信號作為hupqc的實時補償指令信號。
  19. It is grant operation of the our state - owned economy strategy adjustment that the separation between the core business and the sub - business of the state - owned enterprises and the sub - business reform, the object of which is that will set up the modem enterprise regulations suitable for the market economy, bettered the enterprise regulation suitable for the market juridical person running mechanism, the significance of which is that will has realized " two tending towards " through " two displacing "

    國有大中型企業主輔分離輔業改制是我國國有經濟戰略調整的重大舉措，輔業改制的目標是建立符合社會主義市場經濟要求的現代企業制度，完善企業法人治理結構；意義在於通過「兩個置換」 ，實現「兩個走向」 ，即通過國有企業產權和國有企業職工身份的雙重置換，實現國有企業走向市場的同時國有企業職工也走向市場。
  20. In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system

    在實時控制系統的設計中，本文以三相全橋mosfet逆變電路作為實時控制主電路，採用120導通方式結合半橋pwm調制的控制方案，從而有效地避免了橋臂的直通短路；本文用單電流傳感器實現對相電流的檢測，來自位置傳感器的三相位置信號不僅為逆變電路提供換相信息，而且也用於基於信號周期測量的轉速檢測，這樣就省去了速度傳感器；系統採用的是速度、電流雙閉環控制策略，力求構建高性能的稀土永磁無刷直流電動機全數字實時控制系統。
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