放大率計 的英文怎麼說

中文拼音 [fàngdàlǜjì]
放大率計 英文
dynameter
  • 放 : releaseset freelet go
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 放大 : amplify; magnify; boost; enlarge; blow up; gain; amplification; enhancement; multiplication; magn...
  1. The system cybernation method is distributed control system. in this way, the audio process computer switch the signal between input and output channels. the main function of audio process computer is general broadcast, service broadcast and emergency broadcast. there is a special control computer. it " s main function is supervise - control the system status such as the amplifier and speaker circuit

    在控制上，採用了分散式控制方式，由語音計算機進行音源輸入和輸出的切換，執行業務性廣播、服務性廣播和火災事故緊急廣播；由控制計算機進行系統的監控，監視功率放大器和揚聲器迴路的工作狀態，並根據當前的設備狀態執行相應的控制任務。
  2. Supervisor point is behind the postposition of power amplifier, optic signals coming from a tap of 99 : 1 enter into optic spectrum scan module, then the power levels which have been calculated by iterative algorithmic are sent to power control module to guide a set of tunable electronic attenuators

    此方案將監測點放在後置功率放大器的後面，從分束器中分出99 ： 1的光進入光頻譜掃描模塊，傳給功率控制模塊的光功率值經過選代演算法后計算出均衡后的功率值送到功率控制模塊的控制中心去調節電可調節衰減器。
  3. It designed signal amplifying circuit, frequency tricking circuit, data sampling and keeping circuit. the choice of 12 bits high accuracy a / d integrated data sampling card made program simply, high flexible and expandable. and to each error which is likely to occur in high voltage capacity type equipment during the monitoring, analysis and judgement are given

    在硬體電路實現上，注意選擇信號傳感器；合理設計了信號放大電路和濾波電路；設計了頻率跟蹤電路，數據采樣/保持電路；結合軟體控制選用了12位高精度的a / d轉換器，使軟體編程簡化且具有較高的靈和性和可擴展性。
  4. This very special cord was designed for the high current demands of high power devices, particularly amplifiers

    這個特殊的電纜使為了大功率設備需求而設計，尤其是功率放大器
  5. The design and analysis of vertical pnp transistor was accomplished through the relationship between carriers lifetime of epitaxy layer and current gain, rate of surface combination and leakage current, carriers lifetime of epitaxy layer and switch speed

    從外延層載流子壽命與晶體管放大倍數，表面復合率與漏電流，以及外延層載流子壽命與晶體管開關速度等方面對于輸出級縱向pnp管進行了較為詳細的設計與分析，達到了電路中對輸出級縱向pnp管主要參數指標的要求。
  6. Second, the results of theory analysis and simulation research show that the output of one cycle controlled bridge switching power amplifier have dc offset because of the nonideal characteristic of reset signal. the magnitude of output dc offset voltage is proportional to width of reset pulse. a voltage compensation technique is used to solve this question, and the computation formula of compensation voltage is gived. the circuit compensated and not are researched through simulation and experiment, which results show that compensated circuit solve the output dc offset effectively

    其次，理論分析和模擬研究結果表明，由於復位脈沖的非理想特性，單周控制的全橋開關功率放大器輸出端存在直流偏置問題，其大小與復位脈沖的寬度成正比。針對輸出直流偏置問題，提出了電壓補償的改進方案，給出了補償電壓的具體計算公式。對補償前和補償后的方案進行了對比模擬研究和實驗研究。
  7. Eddy - current sensor conversion circuit consist amplification circuit, band - pass filter circuit, demodulation circuit, differentiation phase and data sampling circuit. these circuits are used to convert the test signal of eddy - current sensor to discrete signal tend to process. the microprocessor system that formed of dsp chip is used to data fitting of test system, data displaying and data communicating with personal computer, etc. the interference questions of hardware design and the measure of eliminating interference signal in the subject are introduced in the last of this chapter

    硬體電路的設計主要分三大部分來實現：激勵源電路部分，由分頻電路和頻率合成電路組成，產生頻率穩定的激勵信號以確保檢測任務的正常進行；傳感器變換電路部分，由放大電路、濾波電路、檢波電路、鑒相電路和數據採集電路組成，主要將電渦流傳感器檢測線圈檢測到的信號變換成只含有被測信息的離散信號，易於后續電路處理；由dsp晶元構成的微處理系統，主要完成檢測系統的數據擬合、顯示及與主機通信等功能。
  8. Finally, using the low loss 3 - db three port network as power dividing and combing network and using hmmc 5040s fabricated by agilent co. as single - way amplifiers, with the help of e - plane waveguide to microstrip transition, we have designed a two - way power combing circuit with waveguide as interface ports. in 33ghz ~ 35ghz, the measured saturated output power is about 170mw, and the combing efficiency estimated is greater 70 %

    最後，採用我們設計的3 - db三埠網路作為功率分配、合成網路，以常用的微帶e面探針作為微帶-波導過渡結構，採用agilent公司hmmc5040作為放大單元，製作出了波導介面的兩路合成電路，在頻率為33 35ghz實測飽和功率達170mw ，合成效率高於70 。
  9. Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method

    在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。
  10. The acs algorithm inspired by the ants foraging principle is used to solve the problem of the homogenous frequency enlargement of design flood in this paper, the sketch of ants foraging about design flood computation is constructed and retailed process is provided

    摘要採用蟻群acs改進優化演算法求解了典型洪水同頻率放大問題，構造了用於設計洪水過程求解的螞蟻覓食概化結構圖，並給出了具體求解思路和流程。
  11. The improvement system is made up of the pressure sensor, flow sensor, displacement sensor, electro - hydraulic proportional flow control valve, power amplifier, data gathering board and computer. the platform can carry out testing the hydraulic parameters, processing the tested data, saving the processed data and drawing, adjusting the pressure automatically

    改造后的測控系統主要由壓力傳感器、流量傳感器、位移傳感器、比例節流閥、功率放大器、數據採集卡和計算機組成。改造后的實驗臺具有自動採集實驗數據、自動處理實驗數據、自動保存實驗數據、自動調節液壓系統負載壓力等功能，大大提高了實驗臺的工作效率、測試精度和智能化水平。
  12. Feedforward is generally known as the best performing linearization technique for its advantages, such as broadband, stability, etc. this paper introduces the theories of power amplifier nonlinear characters and feedforward technique. according to the rf specifications in 3gpp for wcdma transmitter power amplifier, an adaptive feedforward amplifier system is completed including eda simulation, circuits layout and main mechanical structure design

    本文根據3gpp對wcdma發射機功率放大器的射頻指標要求，在對功率放大器的非線性特性和前饋技術的特性進行詳細理論分析的基礎上，結合eda模擬工具，設計了基於自適應前饋的功放系統，並完成了系統的調試和測試。
  13. The focal length of a thermal imaging system was assessed by the magnification method using 4 - bar targets as infrared objectives

    摘要採用實驗室中四桿靶紅外目標源，使其成像在熱成像系統自身的焦面探測器上，採用放大倍率法測量與計算出系統的焦距。
  14. By using the fundamental theories of combustion and a series of experimental study, the combustion characteristics of lpg are investigated. the main parameters such as indicator diagrams and heat release rate are calculated and analyzed

    利用燃燒基本理論，通過大量試驗，探索了火花點發動機燃用lpg的燃燒規律和特性，計算和分析了發動機燃用lpg時的示功圖、放熱率等主要燃燒特性參數的變化。
  15. The synchronous rectifying and low power sampling technology is used to reduce the power consumption, flexible external loop compensation, error amplifier output clamp are adopted for better system large signal response. the piecewise slope compensation technology is employed to minimize the consequence of over compensation. the sensor resistor is externally connected, which realize output voltage programmable. the overheat protection and under voltage protection modules are integrated in the die to allow the reliable operation of the system

    同時，電路設計採用同步整流技術、低功耗電流采樣技術降低功耗，提高轉換效率;採用靈活的外部環路補償技術、誤差放大器輸出嵌位技術以實現良好大信號特性;採用分段斜坡補償技術，消除不穩定因素，並最大程度地減小過補償帶來的問題;採用外接輸出采樣電阻的方式，實現輸出電壓的可編程。
  16. The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method

    本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點，解析的研究了電子束在相對論速調管放大器的調制腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程，同時對線性區的增益進行了計算。理論分析表明，場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。
  17. Feedforward linear power amplifier design for cdma2000 1x system

    系統正向前饋線性功率放大器設計
  18. 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。
  19. There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor

    本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。
  20. That the common amplifier count rate is low, temperature voltage drift is very good, the machinery adjustment is rough and instability, in order to overcome these shortcomings ; we use digital potentiometer relay x9511 and precise operational amplifier op37, the electric circuit structure become simple

    為了克服一般放大器計數率低，溫漂大，機械調節粗糙不夠穩定等缺點，使用了非易失性數字電位器x9511和精密運放op37 ，使電路結構大大簡化。
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