頻率變換器 的英文怎麼說

中文拼音 [bīnlǜbiànhuànqì]
頻率變換器 英文
frequency transformer
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 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
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 頻率 : frequency; rate
  1. Commutator frequency changer

    整流子頻率變換器
  2. For more information about electric motors, frequency changer or slip ring motors please call the company woelf

    在生產商和服務商woelf出色的網頁上可以找到價廉物美的頻率變換器，電動機，集電環（繞線）型轉子電動機、繞線轉子異步電動機。
  3. The main works are as follows : 1. the paper systematically describes basic concepts and theories that form the foundation for design of general microwave filters. the topics will cover filter transfer function, lowpass prototype filters, frequency transformations, immittance inverters and the passband insertion loss under the influence of the dissipation of filter elements 2

    現總結如下: 1 .對微波濾波器的設計理論進行系統的分析，闡述了微波濾波器的傳輸函數、低通原型、頻率變換、倒置變換器以及元件損耗對帶內插損的影響等方面。
  4. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。
  5. So qpm enlarge the application range of the crystal in existence. presently diode pumped all - solid - state lasers have been developing quickly, which provides an ideal pump source for qpm. so lower power all - solid - state laser frequency conversion by qpm has been becoming a research focus

    近年來，隨著激光二極體（ ld ）技術的發展，小功率全固態激光器已經十分成熟，為準相位匹配提供了優質的泵源，因此，小功率全固態激光器的準相位匹配頻率變換成為目前的一個研究熱點。
  6. High frequency high voltage power converter for electrostatic precipitator

    靜電除塵用高頻高壓功率變換器
  7. Another aspect of this paper is to expand the working band of hartmann - shack wavefront sensor through frequency transfer of nonlinear optics

    另一方面，我們又對利用非線性光學頻率變換方法拓寬探測器件的響應波段，做了探索性的工作。
  8. Recently, with the development of good quality nonlinear frequency - conversion crystals and solid - state laser used as pump source, research activities in this area is heating up

    近年來，隨著高質量非線性頻率變換晶體和固體激光器抽運源的快速發展，這一領域的研究異常活躍。
  9. In the radiation aspect, the features o radiation sources in power converters are discussed. the radiation models of dm current and cm current in cables and radiative characteristics of cables and high frequency current loops in the converter are also discussed

    在功率變換器輻射emi方面，系統地討論了功率變換器各輻射源的特點，重點分析了共模電流和差模電流在電纜中的輻射模型，功率變換器中電纜與高頻電流迴路的輻射性能。
  10. Direct modulator converts baseband signal to rf signal without upconvertion. the system design is relatively simple compared to upconversion. so direct modulator provides adventages of compact size, low cost and low spurious response

    直接調制將基帶信號直接轉換為射頻信號，不需要二次頻率變換，與上變頻方式相比系統結構簡單，降低了對濾波器的要求，具有體積小，重量輕，成本低等明顯的優點。
  11. Liquid pumps - pump units with frequency inverters - guarantee and compatibility tests ; german version en 12483 : 1999

    液體泵.帶頻率變換器的泵組件.擔保和相容性試驗
  12. It shows that when walk - off and diffraction effects could be ignored approximately estimation of the phase distribution of second - harmonic wave could be done. the far field divergent angle and second moment radius of harmonic wave will vary with the aberration of fundamental wave, but the far field divergent angle will be obviously smaller than that of fundamental wave. the phase distribution of both fundamental and harmonic wave is measured using hartmann - shack wave front sensor in the experiment with 1064nm and 790nm lasers, respectively

    這說明利用非線性光學頻率變換方法拓寬波前傳感器件的響應波段是很難實現的，但是，通常三波相互作用過程的研究均是建立在平面波和理想高斯光束之上，因此我們對于位相畸變倍頻過程的研究是非線性光學領域一個重要而有意義的新課題，它有助於人們更加深入理解非線性光學效應，為進一步合理利用之奠定了理論和實驗的基礎。
  13. With the development of power electrical technology and power element product technics, vscf generating system has better foreground and more broad scope of development. and power inverter, which has important effect on the whole generating system, is the core of vscf generating system

    在交直交型變速恆頻電源系統中，功率變換器將直流電轉變為恆頻恆壓交流電為飛機用電設備供電，其工作狀況直接關繫到整個變速恆頻電源的系統性能，因此是變速恆頻電源系統的核心組成部分。
  14. Introduction and analysis of methods of measuring the group delay of frequency - translating devices

    頻率變換器件群時延測量方法的探討與分析
  15. Grading standard of quelity for frequency converter used in cabled distribution systems primarily intended for sound and television signals operating between 30mhz and 1ghz

    30mhz 1ghz聲音和電視信號的電纜分配系統頻率變換器質量分等標準
  16. By mail, fax or telephone, dongying dongri electric co., ltd. conveys further information on some subsections, like frequency changer, expert and expert

    該企業竭誠為貴公司介紹關于頻率變換器、傳感器、專家、顧問以及老練的、有經驗的和專家費用信息，請撥打+ 86 （ 546 ） 8182410 ， 81 。
  17. The chaos sequence was applied in these two algorithms to increase its security and was served separately as the random watermark generator and the watermark image encryption techniques. due to the analysis of the image characteristics, we determined the watermark strength by the classification of the image content and obtained better robustness and imperceptibility. new algorithms of meaningful digital watermarking in svd domain with chaotic transform encryption are proposed

    混沌序列在這兩類演算法中分別作為隨機水印信號發生器和二值圖像水印的混沌加密手段，具有安全性高、形式簡單的優點；利用hvs特性，分別在時空域和dct頻率變換域中計算圖像內容的自適應嵌入強度，增強了演算法的穩健性；水印的嵌入和檢測計算復雜度小，演算法簡單。
  18. The basic principle and characteristics of optical frequency conversion technology based on the photonic crystals are firstly summarized in the paper ; then, the current developments of frequency conversion of photonic crystals are also presented ; finally, its importance are pointed out in the tunable laser and other application fields

    摘要文章首先介紹了光子晶體光學頻率變換技術的基本原理和技術特點；然後簡述光子晶體光學頻率變換技術研究進展情況；最後指出了光子晶體變頻技術在可調諧激光器和其它領域中的應用前景。
  19. However, these converters become more complicate. phase - shift bi - directional dc - dc converter is attractive since it operates with fixed frequency, has small voltage and current stress and can realize zvs without auxiliary switches

    相移控制雙向dc - dc功率變換器因具有功率器件電壓，電流應力小，定頻工作和無須增加輔助器件即可實現功率器件的零電壓開關條件等優點而受到關注。
  20. Matrix converter is an " all silicon " power converter with an advanced circuit topology. it permits frequency conversion in a single - stage processing without the need of large reactive energy storage components, such as dc capacitor

    =矩陣式變換器是一種先進拓撲結構的「全硅」功率變換器，它允許頻率單級變換，無需大容量的貯能元件。
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