電位平衡制 的英文怎麼說

中文拼音 [diànwèipínghéngzhì]
電位平衡制 英文
potential balance system
  • 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...
  • 平 : Ⅰ形容詞1 （沒有高低凹凸 不頃斜） flat; level; even; smooth 2 （高度相同; 不相上下） on the same l...
  • 衡 : Ⅰ名詞1 （秤桿） the graduated arm of a steelyard2 （稱重量的器具） weighing apparatus3 （姓氏） a...
  • 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...
  1. Chapter two looks at the patterns of media misrepresentation of minorities. various mainstream media processes related to newscasting, tv programming and advertising are analyzed and assessed with respect to successes and failure in the portrayal of racial and ethnic diversity

    同時，文章還闡述了以新聞、電視、廣告為代表的媒體的運行機制，提出要提高少數民族的地位，改善媒體與少數民族的關系，以及充分體現文化多樣性，必須從根本上改革媒體，使之成為權力平衡、利益共享的資源。
  2. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
  3. In former, image - reject mixer uses phasing to differentiate between two single - balance mixers. it ' s four diode is type of dmk - 2606 by made alphar corporation, module of mixer ' s integrated circuit is simulate by senerade 8. 0 and ads software

    然後介紹了混頻器的基本原理，設計了鏡像抑制混頻器和上變頻器放大電路，鏡像抑制混頻器是利用兩個單平衡混頻器的相位差對鏡頻進行抑制，其中四個混頻二極體採用alphar公司dmk - 2606型。
  4. Aiming at the feature of cm interference in power converters, a new approach ? intrinsic dynamic nodes potential balance is proposed. by building node pair with balance potential and making use of the intrinsic stray capacitor of power semiconductor devices, the cm current can be suppressed effectively

    在對共模干擾建模的基礎上，提出了內在動態節點電位平衡的思想，其思路是通過在電路內部構造動態電位平衡節點對，並利用電路中功率器件固有的對地分佈電容使得電路中的共模干擾電流互相抵消，從而抑制功率變換器的共模emi 。
  5. At first, a method for controlling chaos is studied, which is based on phase switching modulation. the n - scroll chua ' s circuit is controlled to its fixed point as well as periodic orbits by using switching modulation on one its phase. its mechanism of control is analysed using the change of the max lyapunov exponent when the system is controlled

    首先，通過對多渦卷蔡氏電路中非線性特性函數的相位進行開關調制，把多渦卷蔡氏電路由混沌狀態控制到其平衡態和周期軌道，並用控制后系統的最大lyapunov指數隨時間的轉變闡述了其控制機制。
  6. Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent

    本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。
  7. The closed loop control mode including position feedback, velocity feedback and current feedback is adopted for the driver motor so that high precision and steady running can be realized. the closed loop control mode including velocity feedback and current feedback is adopted for the momentum balance motor so that fast and accurate trace can be realized

    其中驅動伺服電機採用絕對位置光電編碼器作為位置反饋確保系統的精度要求，實現了位置、速度、電流三環控制，達到了伺服電機的高精度、穩速運行；平衡電機採用電流和速度雙閉環控制，實現平衡電機快速、精確的跟蹤。
  8. But the preparation of high performance anode coating containing pt ? has not been completely researched yet. thermal decomposition and electrochemical reduction mechanism is discussed in this dissertation using thermodynamics balance and e - ph figures. an improved thermal decomposition technique has also been developed for preparing titanium - based electro - catalytic layers

    本文結合熱力學平衡和電位? ph圖，討論了熱分解-電化學還原法制備鈦基含鉑塗層的原理，並採用一種改進的間換法工藝，制備了高活性的鈦基含鉑（ pt ~ 0 ）電催化塗層。
分享友人
分享到 Line

分享到臉書