放大器類型 的英文怎麼說

中文拼音 [fàngdàqìlèixíng]
放大器類型 英文
preamp type
  • 放 : releaseset freelet go
  • 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
  • 類 : Ⅰ名1 （許多相似或相同的事物的綜合; 種類） class; category; kind; type 2 （姓氏） a surname Ⅱ動詞...
  • 放大器 : amplifier; pantograph; lawnmower; enlarger; magnifier
  • 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
  • 類型 : type; mold; form; cut類型論 theory of types; 類型語句 [計算機] type statements
  1. At last, the preamplifier of optical receiver, including the preamplifier ’ s parameter, the selection of circuit type and the design of the preamplifier is discussed

    本文還論述了光接收機前置放大器，包括前置放大器的性能參數、電路類型的選擇和前置放大器的設計等。
  2. Management content : the company product mainly covers the microscope, the tool maker ' s microscope, the projecting apparatus, the sclerometer, the thickness gauge, the magnifying glass, the balance, the measuring instrument quantity meter, the mapping equipment, the metering equipment, to test the instrument, the electrochemistry instrument, the physical instrument, the analytic instrument, the biochemistry instrument, the non - destructive inspection, the medical instrument, the processing machinery and so on altogether 28 broad headings, 170 minor sort large - scale specialized precision instrument measuring appliance sale enterprises

    經營內容：公司產品主要涵蓋顯微鏡、工具顯微鏡、投影儀、硬度計、測厚儀、放大鏡、天平、量具量儀、測繪儀器、測量儀器、實驗儀器、電化學儀器、物理儀器、分析儀器、生化儀器、無損檢測、醫療器械、加工機械等共28大類， 170餘個小類的大型專業精密儀器儀表銷售企業。
  3. Do some necessary calculations and decide on the general scheme of compton back - scattering imaging scanner to the real wall inspection. include the selection of radioactive source, the calculation of compton back - scattering beam, the calculation of the basic condition of finding out the different materials and the determination of some important parameters as well. 3

    其主要內容包括入射源的選擇，散射粒子的理論計算，發現異物的最低條件計算以及系統的一些重要參數的確定，主要包括：放射源的選擇，散射角的確定，后準直器的形狀與尺寸，前準直器的尺寸，前準直孔的大小，檢測器的種類與型號，檢測器的效率等。
  4. The trained neural network model can be used to solve a variety of problems emerged in rf / microwave circuit design, such as in microwave circuit cad, the established model structure can be used to characterize the nonlinear behavior of microwave circuits

    如用於微波電路cad ，可用所建立的模型結構來描述這么一類微波電路的非線性行為特徵；如用於微波電路設計，則可進行如共面波導、晶體管、傳輸線、濾波器和放大器等的設計；如用於微波電路優化，則可用所建立的電路模型優化電路參數，進行阻抗匹配等。
  5. Secondly, compared with some other kinds of comparator structure and based on the preamplifier - latch fast - compare theory, a novel topology of cmos preamplifier latch comparator circuit is presented. considering trade - off between kickback noise and power dissipation, reference resistance value is optimized. according to the encode demands of different stage resolution, clock - control encode circuit is designed

    其後，在具體的子adc設計中，對比各比較器類型的優缺點，並基於預放大鎖存快速比較理論，提出一種新型高速低功耗預放大鎖存比較器電路拓撲;根據adc系統所允許的參考電壓最大波動限制，在回饋噪聲對輸入參考電平的影響和功耗之間折衷，確定優化的參考電阻串阻值;根據不同級精度的編碼要求，設計出時鐘控制編碼電路。
  6. The support vector classifier is adopted to identify fault in the two types, and the grid search method based on cross - validation is chosen to determine model parameters

    該模型將變壓器故障分為放電性和過熱性兩大類，通過統計分析尋求特徵量區分類間的故障類型，採用支持向量機識別類內的故障類型，利用基於交叉驗證的網格搜索法來確定支持向量機的參數。
  7. Objective : to establish a rat model of orthotopic gastric isotransplantation by using microsurgical techniques. methods : 70 sd rats were used in our experiment and 35 gastric trasplantations were carried out. in the donor ' s operation : after the spleen was resected and the proper liver artery was ligated, the stomach was perfused through the abdominal aorta. then the stomach was resected with its peripheral blood vessels including celiac trunk and the portal vein, etc. in the recipient operation : after the stomach and the spleen were reseeted, the implantation was performed by the following sequence : the end - to - side anastomosis between the portal veins. the end - to - end anastomosis between the celiac trunk and the left gastric artery. open the blood flow to observe the effect of the blood supply of the stomach. the end - to - end anastomosis between the duodenum. the end - to - end anastomosis between the cardiac and the esophagus. results : 35transplantations were carried out in which the operation success rate in the last 20 cases was 80 ( 16 / 20 ). the average operation time was 2. 35 h. the longest survival time was over three months. conclusions : the model of orthotopic gastric transplantation in rat was successfully established. it could be used to study the transplanted stomach in the abdominal multiviseeral transplantation and the reconstruction after the total gastrectomy

    目的應用顯微外科技術，建立大鼠原位異體胃移植模型.方法70隻sd大鼠，行35例次的胃移值手術.供體手術，先切除脾臟，經腹主動脈行原位胃冷灌洗.將胃及其所屬血管，包括腹腔乾和門靜脈乾等一併切取.受體手術，先切除胃和脾臟，分別行供、受體間門靜脈的端側吻合，供體腹腔干與受體胃左動脈的端端吻合，然後開放血流.再行供體和受體十二指腸間端端吻合，賁門與食管端端吻合.結果在施行的35例手術，后20例中有16例成功，成功率為80 .最長存活者達3個月.結論成功地建立了大鼠原位異體胃移植類型.該模型可用於腹部多臟器移植中移植胃的相關研究及全胃切除術後代胃的研究
  8. This article according to the acquirement of the system parameters such as : temperature sensitivity 、 angle resolution 、 image forming time etc to design the type and diameter of the antenna ; the receiver type, integral time, rf gain, lpf gain ; the mode of calibration ; the sample frequency and program of the daq ; the scanning time, scan type, etc

    本文根據系統溫度靈敏度、角解析度、成像時間等參數要求，對系統天線類型、直徑，接收機類型、積分時間、射頻增益、視頻放大器增益，定標方式，數據採集卡的采樣頻率、編程及驅動裝置的掃描速度、掃描類型等進行了詳細的分析設計。
  9. Theoretically several solutions are derived in the final scheme such as broadband matching technology which included negative - feedback technology, traveling wave technology and balance technology. in addition, the design will be optimized by eda software and the final test result indicates that our design is successful. the principle of microwave amplifier is introduced at first in this paper, especially its main parameters index sign, then the material performance and the influence of parasic parameter and model setting of the gaas phemt is discussed

    文中首先介紹寬頻帶放大器的主要參數指標，接著介紹了gaasfet的材料特性，以及phemt管芯寄生參數對實際放大器設計的影響，然後討論gaasphemt的大、小信號模型的建立與分類;結合gaasphemt模型和s埠參數分析了寬頻帶匹配技術的原理;最後論述本課題中各個放大器實現的具體方案，以及在放大器實現過程中應該注意的問題，給出了實際寬帶放大器的測試結果，並將軟體模擬結果與實測曲線進行對比。
  10. Nevertheless, they can be divided into several categories on the basis of cost and performance : the personal computer or microcomputer, a relatively low - cost machine, usually of desktop size ( though “ laptops ” are small enough to fit in a briefcase, and “ palmtops ” can fit into a pocket ) ; the workstation, a microcomputer with enhanced graphics and communications capabilities that make it especially useful for office work ; the minicomputer, generally too expensive for personal use, with capabilities suited to a business, school, or laboratory ; and the mainframe computer, a large, expensive machine with the capability of serving the needs of major business enterprises, government departments, scientific research establishments, or the like ( the largest and fastest of these are called supercomputers )

    然而，根據成本與性能，它們可分為幾類：個人計算機或微型計算機，一種成本相當低的機器，通常只有桌面大小（盡管「膝上型計算機」小到能夠放入公文包，而「掌上型計算機」能夠放入口袋） ；工作站，一種具有增強的圖形與通信能力、從而使其對于辦公室工作特別有用的微型計算機；小型計算機，一般就個人使用而言太昂貴，其性能適合於工商企業、學校或實驗室；以及大型機，一種大型的昂貴機器，具有滿足大規模工商企業、政府部門、科研機構或者諸如此類機構需要的能力（其中體積最大、速度最快的稱為巨型計算機） 。
  11. Grounding on above theory, the zvs resonant of soft switch full - bridges circuit, and class - e amplifier, and push - pull class - e amplifier are analyzed respectively in theory. push - pull class - e amplifier is available by comparing results of simulation and low power experiment

    基於以上理論，分別選擇了zvs諧振型全橋串聯逆變器、 e類放大器以及推挽式e類放大器進行詳細的理論分析，模擬比較以及小功率實驗對照。
  12. Gyrotron is a new and important type of electrical microwave device from 50th years of last century to current. as a high power resource, it can produce and amplify milimeter and submilimeter - wave radiation at high frequency

    迴旋管是20世紀50年代後期發展起來的一類新型微波電子器件，它能在毫米甚至亞毫米波段產生或者通過放大得到大功率微波輻射，並具有相當高的工作頻率。
  13. The broadband amplifier is an important type of amplifiers using in modern communication systems

    寬帶放大器是現代通信系統中的一種重要的放大器類型。
  14. The bluetooth chip nrf2401 uses the gfsk modulation. after analyzing and comparing the characteristic of every class power amplifiers, the thesis bring up with the idea of using a switched mode power amplifier to achieve the demanding output power and the higher efficiency

    結合「微型核」信息電子系統實現方案中nrf2401藍牙晶元的特點，本文通過對各類功率放大器的結構和特點的分析比較，提出了採用了開關類功率放大器來實現系統輸出功率要求和盡可能高的效率的設計思想。
  15. Thirdly, a state - space method to model and analyze the class e power amplifier ’ s operation has been present. after the explanation on the state - space model and the design method of class e power amplifier, we implemented class e power amplifier in tsmc 0. 35 m sige bicmos technology, the simulating results finally proves that the accuracy and feasibility of this method

    在此基礎上，提出了用狀態空間模型來分析e類功率放大器，在闡述了e類功率放大器的狀態空間模型和具體的設計方法后，用tsmc0 . 35 msigebicmos工藝驗證了設計方法的可行性和準確性。
  16. We are in addition and sale all kinds of optial instrument. still have the good design ability, strongproduction str - ength. product style is been in the lead with quality all in marketcourrent. the product working procedure all passed the strictly management from the development to production insure attain to guarantee both quality adn quantity. our produt - ct neet warm rec - eption in europe, america, hong kong, janpan, korea, australia and enc

    義烏榮達光學儀器有限公司是一家專業生產銷售以各類望遠鏡為主，其它光電產品為一體的綜合性新興高科技生產型企業，產品主要有雙筒望遠鏡單筒望遠鏡天文鏡玩具望遠鏡三角架瞄準器放大鏡指南針等各大系列。
  17. Because of low noise figure, high linear, broad frequency scale and simple structure, lossless feedback broadband amplifier becomes one of the most important types of broadband amplifiers

    無損耗反饋寬帶放大器以其噪聲低、線性好、寬頻帶以及結構簡單的特點成為重要的寬帶放大器類型。
  18. Through the design the dc feed network, input matching network for the ne900175 gaas fet and analysis the stabilization, power gain, bandwidth of the power amplifier we get the power amplifier is stability, the power gain is 11. 967db and the bandwidth is 300mhz. microstrip antenna has a narrow bandwidth, in this design antenna ' s bandwidth is 100mhz. antenna is the not only the load of the power amplifier, but also as the filter connecting to the output of the power amplifier

    E類功放的pae相對a類、 b類、 ab類的功率放大器類型而言比較高，在50 ? 70 。分析了e類功放的工作過程后，以ne900175的gaas場效應管作為e類功放電路的開關，進行了外圍電路的設計，包括直流偏置電路、輸入匹配網路的設計，功放的穩定性、帶寬、增益的分析。該功放增益最大達到11 . 4db ，帶寬為320mhz 。
  19. This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination

    本論文分析了目前常用比例閥的類型、功能、特性，並針對其不足提出新的改進方案，即：以流量放大，電反饋兩個原理為基礎，通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍，確定主閥結構、功能特性研究等，提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理，並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。
  20. The value dial makes it a simple matter to adjust amp types and parameter values

    價值撥號使得一件簡單的事情，以調節放大器的類型和參數值
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