數據振蕩器 的英文怎麼說

中文拼音 [shǔzhèndàng]
數據振蕩器 英文
data controlled oscillator
  • : 數副詞(屢次) frequently; repeatedly
  • : 據Ⅰ動詞1 (占據) occupy; seize 2 (憑借; 依靠) rely on; depend on Ⅱ介詞(按照; 依據) according...
  • : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
  • : Ⅰ動詞1 (搖動; 擺動) swing; sway; wave 2 (無事走來走去; 閑逛) loaf; wander; roam; loiter; go a...
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  • 數據 : data; record; information
  1. Motion controller composed of general chip series is developed and quadruple differential circuit utilizing dual monostable multivibrators with schmitt trigger inputs and dual 4 _ line to l _ line data selectors or multiplexers is put forward

    本論文研製了一種用常規晶元系列組成的運動控制,提出了採用單穩態多諧選擇的四倍頻辨向電路。
  2. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd : yag激光的發展狀況、主要特性及其應用,從四能級速率方程出發,推導了ld泵浦nd : yag激光的閾值、輸出功率和斜效率的表達式,並簡述了激光的工作原理、結構型式和倍頻方法;其次,以空間相關的速率方程為基礎,提出了ld端面泵浦nd : yag激光的設計方法,給出了一定泵浦耦合方式下,光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參的選取依,以此為依,設計了自聚焦透鏡耦合小功率ld泵浦nd : yag激光和透鏡組耦合高功率ld泵浦nd : yag激光,對激光的輸出功率和功率穩定性等特性進行了實驗研究;再次,在帶尾纖輸出的高功率ld泵浦nd : yag激光腔內插入一隻空液晶盒,觀察到了激光以單縱模運轉;最後,根泵浦光焦斑端面位置對激光輸出功率的影響規律,提出了ld端面泵浦nd : yag激光位移傳感新方法,並進行了理論和實驗研究,研究結果表明:當激光晶體內泵浦光平均光斑半徑遠小於西安理工大學碩士學位論文光束腰半徑時,激光輸出功率的自然指與泵浦光焦斑的縱向位置成高斯變化規律,測量范圍和靈敏度依賴于泵浦功率,隨著泵浦功率的增加,測量范圍擴大,靈敏度提高,當端面泵浦功率為7 . 24w (最大輸出功率為1 . 926w )時,激光位移傳感的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  3. The equivalent circuits is synthesized for the case where the te10 mode is the only propagating waveguide mode, which based on basic waveguide - circuits equivalent circuits such as cross - coupled coaxial line rectangular waveguide junctions, rectangular waveguide transmission lines etc. then we make the computation program for the equivalent circuits to analyse and optimize the vco circuit, and get the each parameter ' s influences on vco output signal

    本文從波導電路的等效電路出發,綜合出3mmvco基波工作時只考慮te10模的等效電路,依此編製程序完成了電路的分析優化,得出了電路中各個參頻率溫度穩定度性能的影響。
  4. For digital audio encoding and decoding modules, delta - sigma modulation is introduced and audio data, preambles with accessorial data are multiplexed according to the digital audio interface standard ; for carrier wave, pll frequency synthesizer is used ; for frequency modulation, voltage control oscillator is taken ; for demodulation, pll frequency discrimination is adopted

    調制方式,並按照字音頻介面標準對音頻、同步字和附加信息進行通道復用;對于載波信號,採取鎖相環頻率合成技術手段;對于頻率調制,採用壓控;對于解調電路,採取鎖相環鑒頻電路。
  5. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函概念,建立了正弦脈寬調制( spwm )逆變供電異步電動機,考慮主磁路飽和時的變頻調速系統整體學模型,模擬系統的低頻;其次從逆變-異步電動機系統能量轉換角度出發,提出通過檢測逆變輸入電流中負電流的間隔時間是否大於1 / f _ c ( f _ c為逆變載波頻率)來判定系統是否出現低頻;最後的實驗結果驗證了系統低頻建模和判的實用性和正確性。
  6. In the section of experiment, we focused on the research of optical system of optical parameter oscillation, computer controlling data sampling closed - circuit system and technology of computer controlling feed - back. in the section of optics, we used present condition to do the experiments about optical parameter effect and got a series of characteristic curve on power transition efficiency and output power

    本文的實驗部分主要側重於智能化光參量系統的光學部分、計算機控制採集閉環系統以及計算機控制反饋技術的研究。在光學部分,本論文利用現有實驗條件進行了參量頻率調諧的研究,得到了調諧曲線,並做了輸出參量光的能量轉換效率以及輸出功率的實驗,得到一系列特性曲線。
  7. Some practical method to lifting the rated capacity of vsc - hvdc is discussed. ( 4 ) the subsynchronous oscillation ( sso ) characteristics of a synchronous machine connected to a static var compensator is studied with the complex torque coefficient method realized by time domain simulation, and some important conclusions are obtained which can guide the design and operation of svcs to avoid sso problem

    ( 4 )基於時域模擬實現的復轉矩系法,對與靜止無功補償svc相聯接的同步發電機組的次同步( sso )特性進行了深入的研究,得出了一些重要結論,可為svc的設計和運行提供避免sso的依
  8. These chip inductors provide maximum protection features for solder reflow, welding and come with precise formed caps of high temperature acrylic for perfect co - centering and vacuum pickup. they have excellent solderability and are able to withstand pull - up force, mechanical shock and pressure. available in sizes of 0402, 0603, 0805, 1008, 1206, 1210, our chip inductors have wide inductance range for virtually all broadband and rf applications

    臺達電子提供全系列之被動元件,包括0402 0603 0805 1008 1206與1210系列,可應用於行動電話基地臺寬頻通訊無線電話個人位助理pda呼叫搖控電視機上盒機電壓控制與高頻模組等。
  9. The designed testing instrument has the functions of many instruments, such as frequency selective level meter, oscillator, frequency meter, millisecond meter and so on. all measuring and data processing are accomplished by the application software that is installed in a computer

    在功能上,裝置集電平、高頻頻率計和選頻電平表等多臺儀的功能於一體,且裝置的所有試驗操作、測量及處理由安裝于通用計算機上的應用軟體完成。
  10. Then the basic principle, basic structure and key technology of array oscillator are given, from which the models of superconducting array oscillator are derived, which includes the model of two - dimension array and the one one - dimension array. finally, the models of superconducting array oscillator are simulated and analyzed, and the parameter values are obtained from simulation. a new method and a new technique are applied to the subject to simulate and achieve

    然後,闡述了約瑟夫森效應、約瑟夫森結陣列的基本原理、基本結構和關鍵技術,根原理引出超導約瑟夫森結陣列的模型,最後,根約瑟夫森原理,對超導約瑟夫森結陣列的模型進行了模擬和分析,模擬得出了的各項參值。
  11. In this chapter, the suitable devices and circuit structure have been choosed to design a second order multiplier, a fifth order multiplier, a sixth order harmonics mixer and a dro operating in 9. 4ghz. the forth chapter is a section of system realization and test, in this chapter, the system of low phase noise frequency source has been constructed and tested. the results show that the targets of the system have been achieved

    第三章的系統分件與實驗部分,主要是以上述第二章的分析為基礎,以所推導的理論公式為指導選取必要的件和合適的電路拓撲結構,分別設計實現了一個二次倍頻,五次倍頻, 6次諧波混頻和一個9 . 4ghz的介質,為後述整個系統的實現在硬體上做了必要的準備。
  12. At present, there are various methods of moving vehicle detector and identification. the system we designed for traffic information makes use of the principle of electromagnetic induction and radio frequency identification the moving vehicle detector, which is based on inductive circular loop, detects the information of vehicle according to the inductive signal. the basic information including speed and go through time can be detected to analyze oscillator frequency

    目前現行的車輛檢測與識別系統的種類繁多,本系統基於電磁感應理論和射頻識別技術,採用環形線圈作為採集傳感,通過對的頻率計測量到車輛的通過、速度等基本信息,同時啟動射頻識別系統,使讀寫與安裝在車輛上的非接觸ic卡進行無線通訊獲取通過車輛的類型和所屬用戶等,並將有關通過rs232串口送至上位機。
  13. You can make a very simple oscillator with one diac, cap and a resistor

    你可以用一個交流輸入儀,電容和一個電阻做個非常簡單的
  14. A novel strategy combined the fuzzy logic of linear multivariable feedback control to design a controller of statcom to meet the multi - objective demands of power systems is also proposed in this dissertation, and the controller is designed with this strategy, because of variational element, nonlinearity and multi - objective controlling demands of statcom, this paper designs the controller respectively aimed at continuous linear control for voltage maintaining, oscillation damping, improving the transient stability

    電力系統變參、非線性以及對控制要求多目標的特點,本文針對維持系統節點電壓、阻尼系統、提高系統暫態穩定性能等不同控制目標分別設計了控制,然後將模糊邏輯和多狀態線性反饋相結合,提出了一種能滿足電力系統多目標要求的控制方法,並用該控制方法為statcom設計了控制
  15. Experimental data indicate control system can correct completion the rise or fall of voltage transformer and the throw or cut of capacitor - group, prevent equipments from frequently regulated and shakes, raise the lifespan of the equipments

    實驗表明,將模糊控制引入電壓無功綜合控制中,控制系統能夠正確的完成對有載調壓變壓分接頭的升降和電容組的投切,並可以避免設備頻繁調節和,提高設備運行壽命。
  16. The task in the open loop system is to get lpg injection duty ratio in pre - set two dimension map according to practical engine operation condition, while the task in the closed - loop system is to calculate lpg injection duty ratio by the approaching increment method or the proportion and integral ( pi ) controller according to the signal of the oxygen sensor. to eliminate the oscillation phenomena of the signal of the oxygen sensor in low - speed condition, this paper develops the stable increment method

    開環階段根實時工況參對事先制取的噴氣占空比map圖執行取值操作;閉環階段根氧傳感反饋信號通過增量逼近法或pi環節計算輸出適合即時工況的噴氣占空比值;為解決低速現象,本文運用固定增量法,對系統進行低速微調。
  17. 6. the theoretics of flip - flop anomalous property is perfected, and the oscillatory state of flip - flop is analyzed and the oscillatory frequency calculating equator is provided ; the self - adapting data synchronizer practical circuit with 0 error rate is designed, which can be used to resolve the problem of data synchronizing. the data synchronizer in common use is realized

    6 、對觸發的不確定性理論作了改進,討論了觸發的非穩態過程,給出了一些計算觸發頻率的公式,設計了自適應同步實現電路,理論誤碼率為0 ,為解決同步問題提供了新思路,實現了常用同步
  18. Based on the analysis of autonomous underwater vehicle ( auv ) sensor failure, diagnosis methods corresponding to three kinds of sensor failure are presented, that is, through that no sensor output for a long time to diagnose the fault of sensor signal gathered keeping unchanged, linear smoothing to solve the vibration of sensor signal, wavelet transform to inspect the broken sensor signal

    摘要在分析水下機人傳感故障形式的基礎上,對傳感可能出現的三種故障形式分別給出了相應的診斷方法,即通過傳感長時間採集不到來診斷傳感信息保持不變的故障,線性平滑濾波解決傳感輸出,小波變換檢測傳感信息的突變。
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