conversion frequency 中文意思是什麼

conversion frequency 解釋
變換頻率
  • conversion : n 1 變換，轉化，轉換；換算，換位。2 （意見、信仰等的）改變〈特指改信基督教〉；（車身，設備等的）...
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  1. According to the study of frequency - conversion technology, it is available to convert the speed of asynchronism motor, adopting ac - dc - ac transducer, realizing to convert the speed

    通過對變頻調速技術的研究，利用變頻技術對異步電動機進行調速是可行的。
  2. The frequency conversion regulation of the condensate pump

    凝結水泵變頻調節
  3. Main electromotor adopt import frequency conversion tecnical

    主電機採用進口變頻技術。
  4. Abstract : by means of the comparison and analysis to applications of convertional starter and frequency conversion governor inmine exhauster, a useful and practicable electricity - saving pathof exhaust system was found out, so improving systematic saving operation

    摘要：通過對傳統起動器和變頻調速器在礦井抽風機的應用進行比較分析，找出一種抽風系統有效、可行的節電途徑，以實現通風系統的經濟運行。
  5. Speed regulating of gear wheel rigs by frequency conversion

    牙輪鉆機變頻調速
  6. By using irm, heterodyne receiver with good image rejection and mmw - to - if once frequency conversion can be realized, which simplified receiver constitution prominently. the number of local oscillation ( lo ) sources is reduces and electromagnetic compatibility ( emc ) of mmw system is improved. also, the size, weight, power consume and cost of mmw receiver is reduced

    採用毫米波鏡頻抑制混頻器，可在保證鏡頻抑制性能的前提下，採用1次變頻接收機，從而大大簡化接收構成，減少本振數量，改善毫米波系統電磁兼容性，減小接收機體積、重量、功耗，並降低成本。
  7. Frequency conversion control for beater in the fermentation cylinder of terramycin

    土霉素發酵罐攪拌器的變頻調速控制
  8. Due to the hardware characteristic ' s limitation, such as the poor speed of a / d, d / a conversion and dsp process, the most part of sr system adopt middle course. that is to say, by using the special digital converter or running relevant arithmetic, it converts the radio signal to intermediate frequency signal and completes the base - band signal process that is n ' t the veriest sr and is named " software defined radio ( sdr ) "

    由於受到硬體性能如a d 、 d a及dsp晶元處理速度的限制，目前的軟體無線電系統多採用折中的實現方案，增加專用的數字變頻器或者運行數字變頻演算法，將射頻信號變頻到中頻，然後再進行基帶信號處理，這樣的軟體無線電系統又被稱之為「軟體定義無線電」 ，它並不是真正意義上的軟體無線電。
  9. With the development of power electronics technology and devices in recent years, instead of using the industrial frequency transformer to boost voltage, dc / dc high frequency converter achieves the function. the system has higher power density and conversion efficiency, and the size, weight, ac noise of which has been greatly reduced

    近年來，隨著電力電子技術與器件的迅速發展，使用dc dc高頻變換技術代替工頻升壓，系統具有較高的功率密度與轉換效率，裝置體積、重量與交流噪聲大大減小。
  10. Application of the speed control technique by frequency conversion on the acrylic fiber production line

    變頻調速技術在腈綸紡絲生產線上的應用
  11. On the radiation range of l - 4gw / cm2, the effects of the modulation in intensity, beam aperture, pulse width and intensity of 3 w on tsrs in frequency convector crystals have been analyzed in detail. the interrelated thresholds have been gained by calculating and theoretical evidences have been offered to prevent tsrs from damaging frequency conversion crystals, which will be applied to the engineering design of the laser drivers on high - fluence

    光的強度調制、光束口徑、脈寬和強度等因素對諧波轉換晶體中tsrs的影響，並計算得出了一些相關闡值，得到了驅動器工作的臨界狀態，為防止出現tsrs的光損傷提供了理論依據，對高功率激光驅動器的工程設計具有實用價值。
  12. This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up

    全文共分八章，取得的主要成果及創新點如下： （ 1 ）首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理，在考慮如下物理過程和參量的基礎上：光與物質的雙光子相互作用； stokes光的傍軸衍射； langevin （郎茲萬）噪聲源；晶體表面反射和端面反射；增益系數、光束口徑、脈寬和三倍頻光能量密度，推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。
  13. ( 8 ) by studying match between the electronic system and catalytic converter on the base of electronic controlled bypassing air system, conclusions having been gotten as follows : higher conversion efficiency of emission have gotten when a / f fluctuates at definite scope and frequency, by controlling the comparing voltage of 02 sensor, the working scope of catalytic converter can be controlled and the matching that can fulfill the high efficiency of hc, co, nox at same time has been optimized

    （ 8 ）進行基於所開發的電控補氣系統上的催化器與電控系統的匹配研究，當控制系統調節空燃比在一定范圍按照一定頻率進行波動時，可以提高催化轉化器的轉化效率；通過控制氧傳感器的比較電壓，可以控制催化轉化器的工作窗口，實現排放污染物中， hc 、 co 、 nox轉化的最優匹配。
  14. In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high

    針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析，變頻器輸出的電壓波形諧波大，沖擊大，電壓上升率高達6600v / s ，是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低，額定頻率在8 - 20hz ;調速范圍寬，最低運行頻率低到0 . 5hz ，起動次數相當頻繁，每小時高達600 - 800次，沖擊負荷大，過載能力要求較高。
  15. Through analyzing and researching the problem of variable frequency to working frequency of high - power electromotor in theory, the key of conversion is pointed out in the paper. on the basis of analyzing equivalent circuit diagram and vector - diagram of induction - motor, the phase of working frequency power whether or not consistent with the output phase of variable frequency power at the moment of conversion is the key to decide whether the conversion is successfully

    本論文針對大功率電機變頻轉工頻轉換存在的問題在理論上作深入細致的研究，根據感應電動機的等效電路和相量圖分析，指出大功率電機變頻轉工頻能否成功，關鍵在於變頻轉工頻瞬時，工頻電源和變頻輸出電源是否相位一致。
  16. Feature : this machine uses puts the material automatically to investigate arranges the odd and even photoelectricity track, the frequency conversion velocity modulation, may moreover clamp inserts plants the material in addition, forexample : in white film among inserts the pearly luster membrane

    特點:本機採用放料自動糾編單雙光電跟蹤、變頻調速、可另外夾插另種材料，如：在白膜中間加插珠光膜。
  17. But because of frequency conversion machine when it was in application it will produce harmonic interference inevitably, the traditional means ca n ' t be applied in variable frequency speed regulation system completely, therefore need some new analytical methods aiming at frequency conversion machine accordingly

    但是由於變頻器應用中不可避免地要產生諧波干擾，傳統的手段和方法已經不能完全適用於變頻系統中，因此需要針對變頻系統採用相應的分析方法。
  18. The design process consisted of computer design by circuit simulation software integrate with electromagnetic simulation software, fabrication of microstrip bpf 、 lpf 、 the match circuits, cavity and test. when rf frequency is 91 ~ 97ghz, lo frequency is 47ghz, power is 10 dbm. the best conversion loss of the 2 and 4 sub - harmonic mixer is 13. 5 db and 23. 5db which is shown in the test

    實測表明，在本振為47ghz ，功率10dbm ，測試射頻帶寬為91ghz 97ghz時，二次與四次分諧波混頻器變頻損耗最優處分別為12 . 7db和23db 。最後對實驗結果進行分析並提出改進措施。
  19. In active section, in order to meet performance of out put power above 10dbm, the power amplifier module of ka - band is fabricated by using hmc283 to achieve the 14db conversion gain. there are five parts that include of waveguide - to - microstrip ? mixer ? filter ? power amplifier and waveguide - to - microstrip. input signal ' s power is 10dbm, after it pass waveguide - to - microstrip, it ' s frequency is escalate from 30ghz to 35ghz

    該組件由五個部分組成：功率為10dbm信號經過波導? ?微帶過渡，然後混頻，濾波將30ghz提高到35ghz濾除不需要的諧波鏡頻以及三階交調信號，為了彌補混頻濾波的變頻損耗，加一級功率放大器，此放大器採用hittle公司hmc283晶元，此上變頻放大組件完成了上變頻?濾波?放大功能。
  20. Quality control of cast irons melting in large medium tonnage frequency conversion furnace

    大中噸位變頻電爐熔煉鑄鐵的質量控制
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