調頻發生器 的英文怎麼說

中文拼音 [diàobīnfāshēngqì]
調頻發生器 英文
frequency modulated generator
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 發 : 名詞（頭發） hair
  • 生 : Ⅰ動詞1 （生育; 生殖） give birth to; bear 2 （出生） be born 3 （生長） grow 4 （生存; 活） live;...
  • 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
  • 調頻 : frequency modulation （fm）; frequency adjustment調頻磁帶錄音機 f m magnetic tape recorder; 調頻...
  1. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。
  2. For example : the high frequency digital oscilloscope, the appropriative debugging, tests computer, eprom read - write, the multimedia computer video frequency signal generating device, the digital camera, dmm, weatherometer, the wave ridge welding machine and so on

    如：高頻數字示波器專用調試測試電腦eprom讀寫器多媒體電腦視頻信號發生器數碼相機數字萬用表器件測試老化臺波峰焊機等等。
  3. By regulating the compensation current injecting into the compensation winding of the reactor, the reactor inductance at different harmonic frequencies can be independently and continuously adjusted

    有源電抗器由一對耦合繞組和一個補償電流發生器組成，通過控制有源電抗器補償繞組中的諧波磁通補償電流，可以獨立且連續地調節電抗器在不同諧波頻率下的電感量。
  4. The nucleus is the software in the design and realization of virtual instruments. we use the design method of module and use many papers to describe the whole building process of the typical signal generation module, date handling module, date reading and writing module, resultdemonstrate module. as the conclusions, we also offer the panels and the diagrams of virtual signal frequency spectrum analytical instrument, virtual butterworth filter, virtual signal generation instrument, virtual integrator and differentiator regulator and amplitude modulation wave counter modulation instrument

    本文採用模塊化設計方法，詳細描述了典型信號生成模塊、數據處理模塊、數據讀取和存儲模塊、顯示模塊等軟體開發的全過程，分析、解決了設計及實現過程中出現的問題，並給出了已實現的虛擬信號頻譜分析儀、虛擬巴特沃斯濾波器、調幅波解調器、虛擬信號發生器、虛擬積分器和微分器等實驗教學用虛擬儀器的前面板圖和程序流程圖。
  5. 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。
  6. The system is based on the inner pid regulate function of frequency converter to regulate the living water stress with low constant stress, and the stress signal is sensed by the stress translator as feedback signal and the construction is sent by the computer as the given signal. the water stress is regulated to high constant stress when the fire happens

    本論文基於變頻器內置pid調節系統，以管網的壓力變送器壓力信號作為反饋信號，由上位機發出的當前狀態作為給定輸出，調節生活供水壓力使其保持低恆壓狀態；當火災發生時，調節系統管網壓力為高恆壓狀態。
  7. The features of the new type of integration scheme can be described as follow : high division and easy debug are achieved in the scheme ; accumulative total is used, and the discord of integer part and decimal part are avoided in the scheme ; it can divide as well as detect direction ; it can integrate the counter into isp device and then evaluate the maxim frequency of the counter ; it also integrate square wave and some logic devices into isp device, and then improve integration, reliability, stability ; and have the character of software designation instead of hardware designation and in - system programming, and it becomes very easy to modify the circuit and to extend the function

    新型的集成化設計方案具有以下特點：細分數高而且調整方便；採用累積計數，避免大小數分別計數的不協調；細分同時完成辨向；可以在isp器件內完成計數功能，從而提高了計數器的最高工作頻率；同時將方波發生器和一些外圍的數字電路集成在一片isp器件內，提高了系統的集成度，性能可靠穩定；具有硬體設計軟體化及在系統可編程的特點，便於電路的修改和功能的擴展。
  8. 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。
  9. In the process of maintaining and upgrading 8410 icp direct reading spectrometer, maintaining and adjusting of - 145 v switching power supply of icp high frequency generator are often required

    摘要在維修和改造8410型電感耦合等離子體直讀光譜儀過程中，經常需要對icp高頻發生器中的開關電源進行維修和調整。
  10. In the second chapter, equivalent circuit of the eddy current sensor is firstly analyzed. based on that, the carrier signal generating circuit that is realized by the lc periodic circuit is introduced, thus, the carrier signal of standard frequency is obtained through the trimming capacity. subsequently, the disc type rotational armature generator and the rotational coupling transformer are separately leaded in to realize the power supplies of the carrier signal generating circuit and output of the measuring signal

    在傳感器設計一章中，首先對渦流傳感器進行等效電路分析，在此基礎上分析了由電感、電容諧振電路構成的載波信號發生電路，並通過微調電容獲得了標準頻率的載波信號；接下來提出了採用盤式旋轉電樞發電機解決載波信號發生電路電源供給問題的方案，同時通過旋轉耦合變壓器的引入，使得測量信號輸出問題很好地解決；本章最後給出的一組實驗曲線充分說明了這一方案的可實現性。
  11. Manufacturer of electrical panel control components, industrial plugs and sockets, ac solenoids, buzzers, and other power and electromechanical components

    -專業研發生產固態繼電器固態調壓模塊固態調壓器整流模塊可控硅移相觸發器變頻調速器的廠家。
  12. The microprocessor is used to realize digital control as flip plus of the scr. the ic chip sa866ae of mitel company is utilized as the low frequency signal generator of the system. furthermore in the zero - current detection circuit, use the photocoupler gaalas ired and photo ic to detect zero - current, furthest shorten the commutating " died region ", prevent the current from distorting

    設計中採用單片機控制可控硅的觸發脈沖，實現數字化控制，並利用mitel公司的三相pwm交流電機脈寬調制晶元sa866ae ，成功研製了交-交頻器中的低頻信號發生器裝置，效果良好；此外利用用光電檢測元件進行系統零電流的檢測，盡可能地縮短換相死區，防止電流發生畸變，成功地解決了原有低頻電源系統中存在的兩大難題。
  13. Based on the series of problems of the practical beam unit dragging system, an excellent energy conservation method is proposed in this paper, i. e. the slip frequency is kept constant in variable frequency system. and a digital spwm generator is adopted to put this control method into practice

    針對實際游梁式抽油機拖動系統存在的一系列問題，提出了一種優良的節能方案? ?轉差頻率恆定的變頻調速系統，並用一種數字式spwm發生器來實現該控制方案。
  14. In order to establish the genetic transformation system of saussurea medusa maxism by agrobacterium rhizogenes, some work were done. the main results were following : 1 establishment of regeneration systems two systems of regeneration from saussurea medusa maxim were established without cold treatment. the somatic embryos were induced from callus cultured in mise for 35 days. the shoots were induced from cotyledon after cultured in misc 20 days, and from leave which were cultured in misl. the experiment showed that the carbon and glycine in the medium could help to increase the regeneration rate to 95 %

    為篩選水母雪蓮代謝突變體和轉基因研究奠定了一定的基礎，陳亞瓊： m質粒介導水母雪蓮的遺傳轉化及毛狀根中決刪合成的調節p義摘要也為研究類黃酮代謝途徑的關鍵酶基因的轉化、高效表達及作用機理提供了理想的實驗體系。主要的實驗結果如下： 1水母雪蓮高頻再生體系的建立通過體細胞胚胎發生途徑和器官發生途徑，水母雪蓮（ squssureamedusamaxim ）可以在常溫下獲得再生植株。
  15. The common frequency synthesizers may not meet the demand on frequency stability and accuracy. and some of them are just desirable at a single frequency, which only can be varied in narrower spectrum

    於是出現了高穩定的晶體振蕩器作為標準信號發生器，但他們的頻率往往是單一的，只能在很小的范圍微調。
  16. Fiber lasers are very sensitive to environmental perturbations such as temperature fluctuations and mechanical vibrations due to their relatively long cavity length when the external environment changing. the cavity drifting produceing the phase noise and amplitude noise, this can cause the output pulse unstablely

    但由於主動鎖模光纖激光器腔內有較長的光纖，而光纖的長度極易因外界環境的影響而發生漂移，因而調制頻率和腔長很難保持匹配。
  17. But the elevator as an important traffic in skyscraper, it also has developed quickly with the improving requirement of the people. it ' s dragging technology has developed from dc timing to ac variable frequency timing and it ' s logic control - relay control also has been replaced by plc

    而電梯作為現代高層建築的垂直交通工具，與人們的生活緊密相關，隨著人們對其要求的提高，電梯得到了快速發展，其拖動技術已經發展到了調頻調壓調速，其邏輯控制也由plc代替原來的繼電器控制。
  18. The modulation bandwidth and the relaxation oscillation frequencies of the laser are quite different at different injection powers and wavelengths

    發現在不同的注入光強度和波長下，激光器的調制帶寬和弛豫振蕩峰頻率會發生變化。
  19. Within this scope, users can get almost any frequency clock by configuring the register, as the tune - process is nearly continual ( in fact there are many discrete frequency points ). the main circuit of the clock generator is a cppll ( charge pump pll ) designed in a method

    該時鐘發生器可以向系統提供頻率范圍是93 . 75k - 180mhz的時鐘信號，用戶可以通過配置寄存器的方法使時鐘發生器輸出自己需要的頻率，而且這一調頻過程幾乎是連續的（實際上是眾多離散點構成的線性近似） 。
  20. Therefore, it has been widely used in the domains of communication, radar, navigation, etc. this article focuses on the generating of the function waves which include sine wave, triangle wave and square wave, depict the concepts of dds ( direct digital synthesis ) and surveying frequency on equal precision, analyze the key techniques in the development and present solutions of function generator. author also present the system structures of hardware and software, discuss the performance indexes and consider the possibility of the system. finally, with respect to the problems in debugging and testing process, author do some analyzing and present the practical solutions

    本文主要圍繞函數發生器輸出的正弦、三角和方波三種基本波形的產生這一課題來展開，闡述了其中的直接數字合成（ dds ） 、等精度測頻等概念;分析了研製函數發生器所需攻克的關鍵技術，提出了技術解決途徑;對方案軟體進行編制和系統進行設計、安裝調試，實現了課題功能;最後針對調試中出現的問題，進行了較深入的分析，並提出了實際的解決措施。
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