電感電容比 的英文怎麼說
中文拼音 [diàngǎndiànróngbǐ]
電感電容比
英文
lc ratio-
By likening a capacitor to a storage tank and an induction coil to a coil spring, tesla realized that a properly configured circuit could amplify electrical signals and raise them to ever higher frequencies and voltages
將電容比擬為儲存槽，感應線圈比擬為彈簧，使特士拉理解到，適當的組裝電路可以將電流訊號放大，並且增加它的頻率及電壓。The verify experiment proves that its ratio and phase characteristics are much better than ordinary ones and the precision is enough for measure use. zero - flux current transformer can ’ t obtain absolute zero flux because residuary flux, so when the secondary turns is too small it will not satisfying. to improve the precision further, proposes a method to compensate zero - flux current transformer using capacitance parallel connected coil and deduces it
為了進一步抵消剩餘磁通，提高互感器的精度，提出了一種並聯電容線圈補償零磁通的方法，並進行了理論推導，設計了基於該方法的100匝電流互感器，通過校驗證明它可以改善零磁通電流互感器的比差和角差特性，提高互感器的精度，將電流互感器的二次匝數由普通互感器的幾千匝降到了100匝，提高了測量微小電流的能力。5 ) the system ' s sensitivity and snr can be improved by the method of balancing the standing capacitance using dc offset compensation
採用直流反饋補償的方法消除電容傳感器極板間的靜態電容，提高了系統的解析度和信噪比。There are many methods for measuring impedance and commercial lcr meters may have very different working principles. it is more advisable that customers submit their impedance standards for calibration, which in turn can be used to perform in - house checking of their lcr meters. however, the laboratory may offer performance checks for lcr meters using impedance standards
測量阻抗的方法有多種，故此市面上的電感電容電阻計或有截然不同的操作原理，一種比較適當的做法是客戶將其阻抗標準器送來本所校正，然後客戶可利用這些已校正的標準器替自己的電感電容電阻計進行測試。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。Frequency response, quantization noise, reconstruction error and its sensitivity to mismatch among adcs are studied at length in prqmf banks adc system, and the theoretic results include : ( 1 ) the distortion / aliasing functions of hybrid filter banks adc system is similar with that of switch capacitor filter banks adc system ; ( 2 ) for wide or narrow band input signal, the effective resolution of the two adc systems is 0. 51og2m bits higher than their adc ; ( 3 ) reconstruction error ' s sensitivity to mismatch among adcs of the two adc systems is reduced effectively than time interleaved adc system
2對prqmf濾波器組adc系統的頻響、量化噪聲特性、重建誤差特性以及重建誤差對adc間的失配敏感性進行了理論分析研究，所得到的理論結果為： （ 1 ）混合濾波器組adc系統與開關電容濾波器組adc系統的失真/混迭函數一致； （ 2 ）無論輸入寬帶還是窄帶信號，這兩種adc系統的有效解析度均比其adc提高了0 . 5log _ 2m比特； （ 3 ）這兩種adc系統的重建誤差對其adc間的失配敏感性均明顯低於時間交織adc系統。By compared with the simulation results and the experiment results, we come to the conclusions that : ( 1 ) circuit with assistant network can widen soft - switching extent in lagging arm, reduces duty - cycle loss on the secondary, diminishes switching dissipation of inverter spot - welding power source. ( 2 ) the range of resonant capacitor, the important factor to soft - switching process, not only affects zero - voltage turn - off of power switches, but also affects the range of zero - voltage turn - on of power switches. so resonant capacitors must be considered according to many aspects ; ( 3 ) it easily fulfils soft - switching condition in lagging arm as leakage inductance of power transformer increases, but bigger leakage inductance of power transformer increases opening dissipation of transformer and decreases efficiency of soft - switching inverter power source
通過模擬結果與軟開關點焊逆變器試驗結果的對比分析，得到了如下主要結論：採用輔助網路可以完全拓寬全橋軟開關逆變器的滯后橋臂軟開關范圍，減小了次級占空比丟失，降低了逆變電阻點焊電源的開關損耗；諧振電容是影響軟開關工作狀態的重要因素，其大小不僅影響開關管的零電壓關斷，同時也影響開關管的零電壓開通范圍，因此，諧振電容應該綜合考慮；功率變壓器漏感越大，越容易滿足滯后橋臂的軟開關條件，但是大的漏感也使變壓器的通態損耗增加，降低了軟開關逆變器的效率。Through theoretic reckoning and simulating analyzing, several control strategies for shunt apf were compared and chose ip - iq arithmetic of the instantaneous reactive power theory control strategy as the right scheme to produce the instructing current. based on it, some new control arithmetic was subjoined to suppress the resonance in system and balance the dc side capacitor voltage. two topologies of main circuit were compared and chose the three - phase voltage - source converter with a split - capacitor as its main circuit structure
通過理論計算和模擬分析，比較了並聯型apf的幾種控制策略的優點和缺點，從中選擇瞬時無功理論控制策略i _ p - i _ q計算方式為指令電流產生的演算法，並在此基礎上增加了抑制系統諧振和平衡直流側電容電壓的控制；比較了並聯型apf主電路的兩種常見形式，從中選擇了三相電壓型變流器的主電路形式；算出適合該apf的直流側電容和出線電感的參數；設計出能有效消除apf產生的高次諧波的高通濾波器。The clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. the operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. the effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined
本文將諧振電感和變壓器交換位置，使變壓器與滯后橋臂相連，這樣箝位二極體在一個開關周期中只導通一次，同時零狀態時諧振電感電流較小，有利於提高變換效率和減小占空比丟失，本文分析改進后變換器的工作原理，並與改進前的變換器進行對比，討論隔直電容在不同位置對變換器工作的影響，確定一種最佳工程方案。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。A variable reactance can be realized by duty ratio control. then the fcl can attain to the goal of controllable limiting fault current and controllable series compensation. first, the topology of pwm - fcl is proposed based on the analysis of others " s research
它是由一個以pwm原理控制的電感模塊和一個補償電容並聯后，再與一個限流電感串聯而成，改變脈沖的占空比可以得到變化的阻抗，實現限流和串聯補償。4. to have researched the dielectric constant changing rule of oil - water mixture when the ratio of oil - water changing and the design principle and mechanical design of capacitor sensor with dielectric constant changing
4 、研究了油、水混合物介電常數隨油、水體積百分比的變化規律，以及變介電常數式電容傳感器設計原理及機械設計。The device can measure reactive parameters in distribution power net which are generally considered to he difficultly measured the paper also introduces the calculating method of the reactive compensation capacity and its optimal location, the design method and realization principle of the series devices, such as the reactive power acquisition device, the reactive power optimized controller and the compensation capacitor operator, is seated in detail through economic and technical comparison, a realistic hardware scheme of reactive power compensation system is proposed
文章利用電磁感應原理和數字通訊技術結合試驗設計出電源自給式高壓線路無線信號採集裝置，解決了配電網分支線路無功參數不易測量的問題。文章還介紹了系統無功補償容量及安裝位置的計算方法，較為具體的講述了無功功率採集器、無功優化控制器以及補償電容操作器等一系列裝置的設計方法和製作原理。通過經濟技術比較提出了一整套切實可行的無功補償系統硬體製作方案。The goal of this subject is to sum up and exploit our technique how to produce low phase noise wideband vcos, through investigating and studying the basic theory and recent research fruits, combining national condition, and produce our low phase noise wideband vcos. using high q components, such as : coaxial resonator, dielectric resonator, makes bandwidth of vco become narrower, so that recently common wideband vcos generally make inductor and capacitor ( lc ) as resonators, combining varactors with wide range tunable capacitance, and achieve the wideband
本課題旨在通過對低相噪寬帶vco的基本原理、國內外在這方面的進展，結合國內的實際情況進行研究，總結和開發出自己的方法，形成自己的理論。並把它運用於實踐，以製造出低相噪的寬帶vco 。由於加入高q元件，如：同軸諧振器、介質諧振器等，會導致振蕩器帶寬比較窄，目前的寬帶vco一般採用電感電容（ lc ）作為諧振元件，輔之以大變容範圍的變容二極體，達到寬帶的目的。And to the electric capacity type voltage mutual inductor, because it compares with electromagnetic type voltage mutual inductor, transient state its bad to respond characteristic, as circuit when making the short circuit two times trouble, the voltage two times delays dropping to zero while needing to pass certain one
而對于電容式電壓互感器，由於它與電磁式電壓互感器相比，其瞬態響應特性比較差，當線路故障而使二次短路時，二次電壓需經過一定的時延後才能下降到零。The following is the main point : based on the operation principle of the ps - fb - zvs - pwm dc / dc converter, the thesis researches the transient operation of the ps - fb - zvs - pwm dc / dc converter with a saturable inductor, and comprises the characteristic between them, and verify theory analysis above by computer simulations
本論文研究的主要內容如下：論文在分析移相控制零電壓開關全橋變換器工作原理的基礎上，對帶飽和電感的移相控制零電壓開關全橋變換器的暫態工作過程進行了研究，並對它們之間的特點進行對比，模擬驗證了上述理論分析。In the dissertation, the effects of bias voltage polarity on the measurement and the normal operation are deeply researched when the voltage polarity is positive - positive, negative - positive and negative - negative respectively. the results are compared with the ones studied by others when the voltage polarity is positive - negative. the air damping of the laterally driven microstructures is slide - film air damping
本文通過改變偏置電壓極性分別為正?正、負?正、負?負，並和偏置電壓極性為正?負配置時進行對比，深入研究了電容式傳感器在不同偏置電壓極性下，驅動信號產生的靜電力對傳感器檢測和工作性能的影響。The criteria used by such software are more closely related to " node " theory and aesthetically pleasing rows of components ( which, admittedly, are also easier on automatic component placing machinery ) than to optimizing stray inductance and capacitance and minimizing common ground impedance
這類軟體的演算法十分接近「節點」理論，在元器件布局方面追求「橫平豎直」式的美觀大方（顯然，對于自動布局演算法而言這樣也比較容易） ，但是卻不怎麼考慮如何優化分佈電感和分佈電容，如何降低器件的接地阻抗。( 2 ) hardware design of difference frequency capacitance measurement circuit, including the structure of sensor, analysis on several relative measurement circuits, periphery circus design. debugs and practically measures it
（ 2 ）進行了差頻式電容測量電路的硬體設計，主要包括：傳感器結構設計，各種微小電容檢測電路的對比分析，差頻式檢測電路設計，溫度檢測電路設計以及存儲電路設計。Vco ’ s theory and parameters especially for the basic mechanism of phase noise are studied. the parasitic effects of rf - ic passive devices such as inductors and varactors and the design guidelines for the on - chip spiral inductors are included too. the accumulation - mode varactor, which has a higher quality factor value than the inversion - mode mos varactor, is studied in detail
研究電感和變容管這兩種射頻集成無源器件的寄生效應和射頻mos晶體管的熱噪聲模型，提出集成電感的設計原則和優化方法，詳細研究了一種新型的積累型mos可變電容，這種積累型mos變容管比一般的反型mos變容管有更高的品質因數。分享友人