振幅控制 的英文怎麼說

中文拼音 [zhènkòngzhì]
振幅控制 英文
amplitude control
  • : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
  • : Ⅰ名詞1. (布帛、呢絨等的寬度) width of cloth 2. (泛指寬度) width; size 3. (姓氏) a surname Ⅱ量詞(用於布帛、呢絨、圖畫等)
  • : 動詞1 (告發;控告) accuse; charge 2 (控制) control; dominate 3 (使容器口兒朝下 讓裏面的液體慢...
  • : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
  • 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
  1. Special gain controls are used to regulate the amplitude levels at the beginning and end of the record.

    為了調節記錄的開頭部分和尾端的電平,通常採用專門的增益
  2. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超聲相線陣換能器聲場的指向性的基礎上,就各個晶片幾何參數對指向性指標(主瓣寬度、旁瓣度、消除柵瓣) 、聲壓值、陣元動模式、陣元間互輻射、有效檢測區域、精確能力、近場長度等方面的影響進行了論述,並在綜合各方面影響的基礎上,提出了晶片幾何參數優化設計的原則和方法,編寫了設計程序和界面。
  3. This machine is comprised of screen box, vibration source and damper, vibrating frame and screen box are connected with 4 - 12 group soft rubber damp - ers fixed up and down, and the centrifugal force is generated therein, the floating ampli - tude is controlled by the damper, by which, material realizes a process of throw and lami - nation filtration downward, and therefore reach - ing the optimized grading and screening ef - fect

    本機由篩箱.動源及減震器三大部分組成.動機架與篩箱連接有4 - 12組軟橡膠減震器上下固定,產生離心力,由震器浮動,使物料有一個向下拋震和向下分層過濾的過程,從而達到最佳分級過篩的效果
  4. Based on the study of transferring characteristics of the lcc - type resonant voltage, the parameter combinations, which make widths and magnitudes of voltage pulses of resonant network adjustable, arededucedo when the following requirements are met : fn > 3, k > 3 or cp / cs > 8, the above circuit is of natural voltage - stabilized characteristics, thus open - loop control method for bucking voltage is presented and the experimental results verify that the method is feasible.,

    實測整機在額定負載時效率達到88以上。在研究lcc諧網路電壓傳輸特性的基礎上,推導出滿足可變寬度和度的諧網路輸出電壓脈沖列的參數組合。設計f n 3 、 k 3或c _ p / c _ s 8時,諧網路具有自然穩壓特性,因此本文提出並實驗驗證了一種整機為降電壓時的開環策略。
  5. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發,提出了一種lcc諧型恆頻移相單相高頻鏈逆變電路拓撲,在調系數0 . 1 m 0 . 5情況下,移相角按正弦規律變化,使諧電壓脈沖列的值追蹤參考正弦電壓信號,經過整流、濾波、低頻逆變,從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載,移相全橋具有超前橋臂零電壓開通,滯后橋臂或者零電壓開通( _ 0 )或者零電流關斷( _ 0 )的軟開關特性,而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  6. By computation and practical example of running machine, it is shown that the frame foundation under high - frequency machine should nut be designed in design principle of avoiding resonance, but should be designed in contral principle of vibration amplitude

    摘要通過對工程實例的計算和機器的實際運行監測結果分析表明,在高轉速機器作用下的框架基礎按共的設計原則是不合理的,而應採用法的設計原則。
  7. The main work includes : for the torsional vibrations of a rigid disk on saturated media, first, the dynamic governing equations are solved by the use of hankel transform and the general solutions in the hankel transform fields are formulated. then, considering the mixed boundary - value condition, the dual integral equations of the torsional vibrations of a rigid disk on saturated grounds are obtained, which can be reduced to the fredholm integral equations of the second kind and solved by numerical procedures. consequently, the dynamic compliance coefficient curves and the torsional angle amplitude curves versus the dimensionless frequency are presented and contrasted to that of the elastic one

    在前人研究的基礎上,本文基於陳龍珠等曾提出的一組實用飽和土波動方程,用解析或半解析的方法首次較系統而深入地研究了飽和半空間地基與基礎的扭轉動問題,主要工作有:對于飽和地基上剛性圓板的扭轉動,作者首先採用hankel變換求解了動力方程,得到了該方程在hankel變換域內的通解,然後由混合邊值條件建立了飽和地基上剛性基礎扭轉動時的對偶積分方程,並將其化為易於數值求解的第二類fredholm積分方程,用數值方法計算了基礎的動柔度和扭轉角值與動頻率的關系曲線,並將其與單相彈性介質情況進行了對比分析。
  8. Pass the research and the test datas of this article, the major work done can be summarized as follows : 1. provide the detailed test data, analyze the existing synchronous controler some shortage, and produce to suffer from the hidden danger

    通過本課題的研究和實際數據測試,研製工作獲得如下結果: 1 .提供詳盡的測試數據,分析現有的tri - tek 704d電流相位/值同步器存在的一些不足之處,以及由此產生對並聯雙動臺系統所帶來的安全隱患。
  9. Currently, the large space vehicle ’ s vibration test usually adopted dual - shaker system, the electric current phase synchronous controller is one of the equipments importantly in the system. the existing control equipments make use of tri - tek704d controller, and the current feedback in - phase control method

    目前,我國大型航天器環境動試驗採用多動臺同步激勵的試驗系統來完成,電流相位/值同步器是並聯雙動臺同步系統中重要的組成設備之一。
  10. Base on review of existed study and application in suppressing cable vibration in the world, technique of mitigating cable vibration with viscous damper and mr damper has been investigated in this dissertation, and the main contents and progresses in form of summary are as following : 1 the motion differential equations of the cable - damper system are formatted, which take into account these factors, such as the inclined angle, sag, stiffness etc. coupling motion between cable and deck is studied with analytical and numerical method. numerical results show that large amplitude vibration of cable with beat rhythm will occur when exciting frequency of deck equals two times modal frequency of cable

    本文在對國內外斜拉索研究與應用現狀進行綜合評述、分析的基礎上,針對上述問題進行了深入研究,具體的研究內容和取得的成果包括: 1 、建立了斜拉索-阻尼器系統運動方程,對拉索與橋面的耦合動作了分析和研究,數值結果顯示當橋面激頻率等於某階拉索模態頻率的兩倍時,很小的初始擾動將引起拉索的大動,並呈現拍的特徵,與實測的拍信號一致。
  11. And an automatic gain control ( agc ) loop is introduced to keep the vibrating amplitude of dive tines invariable. it will effectively improve the linearity and robustness of the gyro. moreover, the configuration of the drive circuit is illustrated in detail

    3 .設計了微陀螺諧驅動系統,引入了自動增益環節,使驅動音叉值保持恆定,提高了微陀螺的測量線性度,增強了微陀螺的魯棒性,並且詳細介紹了驅動電路的實現方法。
  12. Spiral baffle plate heat exchanger improved heat changing efficiency salient, reduced the press with great, control the damage from the shake, reduced the possibility of dirt subside, it has many merit

    摘要螺旋折流板換熱器顯著地提高了換熱效率,大度降低了壓力降,動造成的破壞,減少了污垢沉積的可能性,具有諸多優點。
  13. The main ideas of the thesis and the contributions to the resonant dc - link area are also listed in this chapter. a novel control strategy for the two - amplitude actively clamped resonant dc - link is proposed in chapter ii. it neglects the bus short circuit time adjuster and stabilizes the clamping voltage by a pi regulator so that the obtained link frequency is improved and the link losses are greatly reduced

    第二章針對雙技術在單相橋式電壓源逆變器中的應用為範例進行研究,提出了直流母線無短路和通過pi調節環穩定箝位電壓的雙策略,進一步提高了母線蕩頻率,減少了直流環節損耗。
  14. In the control loop, the phase - lock loop was used to trace the operating frequency, the vibrating - amplitude loop was used to control the driving influence, the compensate control loop was used to adjust balance, and the measuring loop was used to measure. with the simulation charts of various subsystems, the system parameters were designed

    迴路中,利用鎖相迴路來追蹤工作頻率,用振幅控制迴路來驅動力,用補償迴路調節平衡,用感測迴路進行感測,並且利用各分系統的模擬圖設計出系統參數。
  15. Abstract : frequency automatic tracking and amplitude stabilizing are two important characteristics of ultrasonic machining power

    文摘:頻率跟蹤和恆定振幅控制是超聲加工電源兩個重要的特性。
  16. J. p. ying, k. heumann. two - amplitude active clamped resonant dc link inverter. in proc. ipemc ' 97, hangzhou, china, pp. 554 - 562

    張德華,有源箝位諧直流環節逆變器的雙技術研究.浙江大學博士學位論文, 2002年2月
  17. An extended hyperbolic mild - slope equation, which can take such terms as wind input, bottom friction and nonlinearity of wave into account, here has been deduced into a parabolic one in the form of a series of governing equations described with complex amplitude. it became a complete wave model when integrated with corresponding physical and imaginary ( open ) boundaries, and can be solved through the improved crank - nicholson or the well known alternating direction implicit ( adi ) difference method, both of which can accelerate the convergent speed, expand limitation of the mathematical method and improve the quality of the solution

    本文基於綜合考慮底摩阻、風能輸入及非線性影響的推廣雙曲型緩坡方程,將其進行轉換,產生一個演變方程,其復振幅控制方程為拋物線性,並採用adi差分格式、改進的crank - nicholson格式及相應的物理和虛擬(開)邊界條件進行求解,以提高數值模擬的適用性、數值計算的穩定性、收斂速度及精度。
  18. But there are some defaults in conventional balance values, such as low - frequency vibration, excessive high controlling - pressure, disadvantage in stability and safety, complicated construct etc, the key matters are that the valves neither work solely nor run synchronously in two cylinders

    但傳統的平衡閥存在著不少缺點,如低頻動、壓力偏高、工作平穩性和安全性較差、結構較復雜等,關鍵問題是在雙杠變等迴路中,既不能單獨應用,又不能實現雙缸同步運行。
  19. Aac automatic amplitude control

    自動振幅控制
  20. Automatic amplitude control

    自動振幅控制
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