相對容電率 的英文怎麼說

中文拼音 [xiāngduìróngdiànlǜ]
相對容電率 英文
relative permitivity （rr
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 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...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 相對 : 1. （面對面） opposite; face to face 2. （非絕對的） relative 3. （比較的） relatively; comparatively
  1. Test method for measuring relative complex permittivity and magnetic permeability of solid materials at microwave frequencies

    測量微波頻率下固體材料相對復合電容率和磁導率的試驗方法
  2. On the backgrounds of researches inside and outside country, and cooperating experiments with theories analyses, the influence of different processing technology parameters and different sbs modifier sorts on the sbs modified asphalts " properties has been studied. at the same time, their microstructure are observed through fluorescence optical microscopy and scanning electronic microscopy, thus to direct modified asphalt production. on the above conclusion ' s basement, analysing some disadvantages of the storage stability test of sbs modified asphalt in the current specification, a new storage stability test apparatus is developed

    本文在參考國內外研究的基礎上，採用理論、試驗相結合的方法，研究加工工藝參數以及改性劑種類等對sbs改性瀝青性能的影響，並通過熒光顯微鏡、掃描電鏡分析其微觀形態，從而指導sbs改性瀝青的生產；在此基礎上，分析我國現行規范用來評價sbs改性瀝青儲存穩定性方面的不足，開發了新的試驗儀，根據動態剪切流變試驗結果和微觀狀態分析，提出一個新的指標? ?離析率r _ s來評價sbs改性瀝青的儲存穩定性；最後，針對不穩定的改性瀝青提出改善措施，研究證明摻加增容劑和穩定劑是行之有效的方法。
  3. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance

    通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。
  4. Tan insulating liquids - measurement of relative permittivity, dielectric dissipation factor and d. c. resistivity

    絕緣液體.相對電容率電介質損耗因數
  5. Tan insulating liquids - measurement of relative permittivity, dielectric dissipation factor tan delta and d. c. resistivity

    絕緣液體.相對電容率電介質損耗因數
  6. The paper first reviews the research background and actuality of the filter " s design in china and other country, introduces the meaning of the project and the work of the paper, narrates the theory of the switched - capacitor network and the basic switch building blocks, analyses the related factors of the design of sc filter. such as the selection of the architecture, the trade off of the opamp " s gain, bandwidth, phase margin, slew rate and setting time, the effect of the switch " s on resistor, how to reduce the charge injection and the clock feed - through, the power consumption and the selection of the sampling frequency and so on

    本文首先回顧了濾波器設計的國內外研究背景和現狀，介紹了本課題提出的意義以及本文的主要工作，論述了開關電容網路原理和基本開關模塊，分析了開關電容濾波器設計的相關因素：電路結構的選擇，對運算放大器設計中高增益、寬帶寬、相位裕度、轉換斜率和建立時間等的折中考慮，開關的打開電阻對電路的影響，開關電容電路中怎樣減少電荷注入和時鐘饋通，以及整個電路的功耗問題和采樣頻率的選擇等。
  7. This paper presents a type of electric power bidding mechanisms based on sealed - hid auction theory, and models generation company ' s equilibrium bidding with order statistic principle, in which the cases that the same and different generation capacity among generation companys is considered, then analyzes the relation between the market clear price and bidding mechanism to explore the optimal bidding mechanism from the view of market efficiency

    摘要基於暗標拍賣理論，提出了一類電力競價機制，然後運用次序統計量方法，分別對發電容量相同與不同的發電商組成的電力競價市場，構建發電商的均衡報價模型；在模型求解基礎上，分析競價機制對市場清除價的影響，以從市場效率的角度探求最優電力競價機制。
  8. Because of the clamping capacitor and the interleaved structure, it has some good features compared with other flyback converters, such as : the topology is simple and can be realized easily ; the voltage spike of the power switch is availably restrained and without leakage - inductance energy loss ; the ripple of the input and output current is reduced, correspondingly, the volume and weight of the output and input filter is also significantly reduced

    由於箝位電容的加入，相對于其他類型的反激式變換器電路，該拓撲具有一些獨特的優點:電路結構簡單且易於實現;無需另加輔助開關管，實現了開關管的有源箝位，抑制了開關管的電壓尖峰;提高了輸入、輸出電流的脈動頻率，減小了輸入及輸出濾波器體積。
  9. Comprehensive analysis and evaluation of technical performances of the generators are made through basic characteristic test, leading phase operation test, temperature rising test, loss and efficiency test over the retrofitted generators

    通過增容后的發電機的基本特性試驗、進相運行試驗、溫升試驗以及效率試驗等對發電機的技術性能進行了綜合分析和評價。
  10. Following atm and 1000m ethernet network, wlan is a hit point in the communication research field now, and is thought highly as the future of communication network

    該方案克服了電磁波頻率資源的約束，能高速傳遞大容量信息，且相對成本低、安全性高，適合寬帶傳輸的要求。
  11. Nano - sacle coo is apt to dissolve in the electrode homogeneously, and better conductive net of coooh come into being, thus contribute a lot to the procedure of the activation. the electrode with nano - scale coo and cnts shows higher discharge voltage and higher discharge capacity. nano - scale additives can improve the specific capacity of the electrode, the volume specific capacity and the mass specific capacity of the electrode with nano - scale coo are 784mah / cm3 and 224mah / g, respectively

    結果表明：添加劑為納米coo的電極的活化性能最好，納米coo相對于普通coo能更加均勻的分佈在鎳電極內，也更易溶解、反應生成coooh導電網路，從而加快了鎳電極的活化進程；添迦納米coo和添加cnts的極片具有較高的放電電位和較大的放電容量，納米添加劑能有效提高鎳正極活性物質的放電效率和利用率；納米添加劑可以有效地提高鎳正極片的容量密度，其中添迦納米coo的極片體積容量密度達到784mah cm ~ 3 ，質量容量密度達到224mah g ；添加cnts的極片體積容量密度達到778mah cm ~ 3 ，質量容量密度達到223mah g 。
  12. We design inversion control circuit with cmos figure pll cd4046 act as core and microprocessor 80c196kc act as assistant controller. adopting a control method that combine fuzzy controller and pll control, improve induction heating power succeed in startup. adopting electric current voltage pair closed loop feedback design, with trough route capacitance voltage and trough route electric current act as pair closed loop feedback signal, guarantee induction heating power output accuracy

    並對系統主電路的元器件參數進行了詳細的計算；設計了以cmos數字鎖相環cd4046為核心、以80c196kc作為輔助控制器的逆變控制電路；採用了模糊邏輯與鎖相環相結合的控制技術，提高了電源的啟動成功率；採用電流、電壓雙閉環反饋方案，採用槽路電容電壓和槽路電流作為反饋信號，從而保證了電源功率的輸出精度。
  13. The simulated results show that we can improve the sensitivity by setting the optical bias at / 2, reducing the gap of electrode, increasing the overlap integral factor, reducing the insert lose, adopting suitable segmentation number, increasing the electrode length, increasing the optical power, reducing the wavelength and the relative intensity noise and reducing the receive bandwidth ; obtain the wider bandwidth utilizing reducing the electrode length and the capacitance of modulator, segmentation the electrode ; increase the dynamic range using lowering noise, increasing the optical power at the detector and lower optical bias

    通過計算得知，使傳感器相位偏置為/ 2 ，減小電極間距，提高電光重疊因子，減小器件插入損耗，採用合適的分段數，增加電極長度，增大光功率，降低激光的波長，減小相對強度噪聲，減小接收帶寬，對提高靈敏度的效果是非常明顯的。而減小天線長度，降低調制器電容，電極分段，都可以獲取較大的帶寬。降低系統噪聲;增加到達探測器的光功率，採用較低的光學偏置，都可以增大線性動態范圍。
  14. Waveguide type dielectric resonators - general information and test conditions - measurement method of complex relative permittivity for dielectric resonator materials at microwave frequency

    波導型介質諧振器.通用信息和試驗條件.微波頻段的介質諧振器材料的復合相對電容率測量方法
  15. Waveguide type dielectric resonators - part 1 - 3 : general information and test conditions - measurement method of complex relative permittivity for dielectric resonator materials at microwave frequency

    波導型介質諧振器.第1 - 3部分:通用信息和試驗條件.微波頻段的介質諧振器材料的復合相對電容率測量方法
  16. During the accelerated thermal aging and ultraviolet radiation aging of pmma which is used as the core materials of fiber in pof, it was found that the relative permittivity of pmma decreased significantly to approximately equal to its square refractive index

    摘要實驗中觀察到用作塑料光纖纖芯材料的純有機玻璃（聚甲基丙烯酸甲酯）在加速熱老化和紫外老化過程中其相對電容率急劇下降至大約等於其折射率的平方，即有機玻璃由極性聚合物變為非極性聚合物（ 「全去偶極子極化」現象） 。
  17. The voltage - controlled oscillator and the dual - modulus prescaler are the most crucial blocks in the pll frequency synthesizer. two kinds of voltage - controlled oscillator ( the quadrature voltage - controlled oscillator based on symmetrical spiral inductors and differential varactors, and the voltage - controlled oscillator with wide tuning range based on mos varactors ) and two kinds of prescaler ( the prescaler using phase - switching techniques, and the prescaler using dynamic circuit techniques ) are proposed. then, the complete pll frequency synthesizer is implemented, in which

    壓控振蕩器和雙模預分頻器是鎖相環型頻率合成器中最關鍵的兩個模塊，本論文分別實現了兩種類型的壓控振蕩器（採用對稱螺旋型電感和差分二極體型容抗管的正交壓控振蕩器和使用mos型容抗管的大調諧范圍壓控振蕩器）和兩種類型的雙模預分頻器（使用相位開關技術的雙模預分頻器和使用動態電路技術的雙模預分頻器） 。
  18. Compared with analog power amplifier, digital amplifier has many advantages, such as hi - fi, high efficiency, good match between amplifier and loudhailer, easy update, convenient debugging and so on. and it can process not only digital audio signal but also analog signal. accordingly, it faces a vast market

    數字功放產品相對模擬功放有很多的優點:高效率、保真度較好、功放和揚聲器的匹配好、升級換代容易、生產調試方便等，且與未來的全數字式音頻廣播、高清晰度電視的發展趨勢相匹配。
  19. The main contents as follows : 1. studied the ideal second class calibration system, having studied kinds of parameters of the calibration system and environment ’ s influence on the phase difference measurement and have obtained many important results. put forward an engineering calibration system, and obtained the phase difference - - electric conductivity rate curve and analyze the system ’ s error margin etc. important

    本文就這兩大關鍵問題做了深入的研究，主要內容為如下: 1 .研究了相位感應測井理想二級刻度器模型中各種參數和環境對測量精度的影響，得到了許多重要的結論;同時提出了一種工程上切實可行的刻度系統方案，給出了相位差-電導率曲線以及系統誤差等重要參數。
  20. Relative permitivity r

    相對容電率
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