control frequency 中文意思是什麼

control frequency 解釋
控制頻率
  • control : n 1 支配，管理，管制，統制，控制；監督。2 抑制（力）；壓制，節制，拘束；【農業】防治。3 檢查；核...
  • 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. Afc, automatic frequency control

    自動周波數制御
  2. Automatic frequency control afc

    自動頻率控制
  3. Afc automatic frequency control

    自動頻率調節
  4. In designing analogic circuit, we adopt programmable filter max262 to meet the system ' s command. after the step, we can make the signal ' s frequency width is wider and noise level is lower. to make the signal ' s amplitude to meet the analogic to digital device ' s command, we adopt the max551 to finish the gain control

    在模擬電路部分，採用可編程濾波器max262 ，這樣就滿足了該數據採集裝置所採集的信號的頻率范圍較寬以及具有較低的噪聲水平的要求，為了使采樣到的信號的幅度滿足後面a d轉換器的要求，採用max551對采樣到的信號進行調理（增益控制） 。
  5. The catv charge and control system has excellent compatibility with other signals and no astriction in signal format, so you doesn ` t need to worry about its future. the system involves many technical fields, including controls of computer 、 communication 、 high frequency of electric circuits, and now it serves for more than 1, 000, 000 customers

    該系統涉及多個研究領域，包括計算機控制、通信、高頻電子電路等多個領域的知識，涉及用戶多達60萬戶。
  6. Vol - adj （ 42 ） control the volume of audio frequency output

    控制音頻輸出音量的大小。
  7. Adopt dual cooperative control technology and frequency automatic following control, the protective performance is more complete and its reliability is much higher, low heat penetrating effect of frequency is good

    200型主要特點：採用雙調控技術，頻率自動跟蹤控制，保護性能更完善，機器可靠性更高，頻率低透熱效果好。
  8. In the realization of the inverter control circuit, the frequency self - following system with optimal dead time based on dsp is researched

    在逆變控制電路的實現中，研究了基於dsp的具有最佳死區的頻率跟隨控制系統。
  9. The control system with such method is simulated and a inverter is made for speed control of single - phase motor. the method presented in this paper offers such advantages as easy implementation, large range of frequency and rapid dynamic response. furthermore, using this method, the single - phase motor with symmetrical or dissymmetrical windings can operate symmetrically

    本文提出的變頻調速控制方法具有系統設計簡單易實現，調速范圍大，動態響應快等特點，而且在電機繞組對稱和不對稱兩種情況下均可實現變頻調速的對稱運行。
  10. A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later

    每個獨立的航空靜止變流器採用占空比擴展有源箝位正激式高頻脈沖直流環節電路拓撲，由占空比擴展有源箝位正激式高頻脈沖直流環節電路與dc ac逆變橋級聯而成，前級採用電壓型pwm前饋控制技術，后級採用三態dpm電流滯環控制技術。
  11. In the next place, by studying the change of the resonant frequency of the whole system, this paper designs the circuit to track the resonant frequency of the system by cd4046 mainly. at the same time, in order to improve the efficiency and get better dynamic capability of the converter, we choose pll and fuzzy control after comparing the pll circuit, fuzzy circuit and pll ? fuzzy control circuit. in the end, this paper brings forward the control blue print to realize the drive control circuit of the high frequency converter, using the dsp chip as the key part to realize four routes of pwm drive pulses with dead band of the control system

    其次，通過對整個系統諧振頻率變化的分析和研究，設計了以鎖相環cd4046為核心的鎖相環控制電路，同時，在綜合比較鎖相環控制、模糊控制以及模糊控制和鎖相環復合控制三種控制演算法的基礎上，進行了系統模擬，得出採用復合控制可使跟蹤電路既具有鎖相環路較好的穩態性能，又擁有模糊控制較好的動態性能，系統魯棒性能好，同時也提高了逆變器的效率。
  12. This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective

    本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷，利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法，提出了在液壓系統中加一個定差減壓閥的新思路，較好地解決了液壓伺服系統存在的上述問題。
  13. Conclusions the frequency of clinically important valve regurgitation was significantly increased in patients taking pergolide or cabergoline, but not in patients taking non ? ergot - derived dopamine agonists, as compared with control subjects

    結論：與對照組相比，服用培高利特或者卡麥角林的患者臨床上發生重要瓣膜返流的頻率顯著增加，但服用非麥角?生的多巴胺受體激動劑的患者瓣膜返流的發生率卻未增加。
  14. The interface utilizes the high - speed pu lse function of plc basic unit to realize the control frequency of pulse, pwm regulate voltage and to make use of drivers of step motor control step motor

    利用plc主機模塊的高速脈沖輸出功能，控制脈沖頻率的發生、 pwm脈寬電壓的調節，並通過步進電機驅動器實現對步進電機高效控制。
  15. The heat - setting computer control system is a advanced distributed scada system which involves temperature control, tension control, frequency speed control, serial communications, computer and touch terminal

    聚酯網熱定型機計算機控制系統是一套集溫度控制、張力控制、變頻調速、通訊鏈路、上位機和觸摸終端為一體的先進的分散型scada系統。
  16. This paper studies and designs a variable frequency speed regulation system applied to induction motors by means of votating speed difference frequency fuzzy control. the general scheme of the system is presented. circuits and software are designed for the major parts of the system such as constant magnetic linkage control frequency converter and votating speed difference frequency fuzzy controller

    本文對異步電動機轉差頻率模糊控制變頻調速系統進行了較為詳細的研究和設計，給出了系統的總體方案。對于系統的主要組成部分? ?恆磁鏈控制變頻器和轉差頻率模糊控制器進行了設計。
  17. The flat yarn making machine is adopted micro - processor control, frequency conversion governor and setting and displaying technical data may be fully digitized on the basis of absorbing international advanced techniques. the main parts use quality products. the line enlarges l d ratio and adopts new type of separating screw and widens mixing smelt zone on the extruder screw pot which is specially processed using quality steel, fine plasticized effect, low energy consumption in relation to output

    本平膜拉絲機組是我廠在廣泛吸收國外先進拉絲機組技術基礎上，採用微機控制變頻調速及可控硅直流調速等先進技術研製而成的，主要電氣元器件採用國外優質產品，整機結構設計先進控制靈敏運行平穩操作方便安全可靠生產效率高能量消耗低。
  18. Constant stator magnetic linkage control frequency converter includes power devices utilizing igbt, drive circuit using three - phase drive ic with multiple protection functions. pwm signal formation circuit in the way of voltage space vector control and realized with pld ( programmable logic device ) devices and compensation for the influence of supply voltage variation and stator resistance voltage drop

    其中，恆定子磁鏈控制變頻器的設計中主電路採用功率器件igbt ；驅動電路採用三相多功能集成驅動晶元； pwm脈寬調制信號產生電路採用電壓空間矢量控制方式，由pld器件實現；對電源電壓變化及電阻壓降造成的影響進行了補償。
  19. Change to departure control frequency 118. 1 after airborne. caution for possible turbulence from the dc8 just departed 3 minutes ago

    離地后換至118 . 1起飛管制頻率。注意， dc8剛起飛3分鐘，可能有顛簸。
  20. Application of stationary compress control frequency converted regulating speed system for air compressor station

    恆壓縮控制變頻調速系統在空氣壓縮機站的應用
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