調制寬度 的英文怎麼說
中文拼音 [diàozhìkuāndù]
調制寬度
英文
modulation width-
In order to reduce the re - deposit volume of the dredged channel, the method must be based on decreasing the oncoming sediment, changing the mouth site, builting the sediment control dam and raising the reservoir level
為了最大限度地減小疏浚挖槽的回淤量，必須依靠控制上游來沙量、調整入水口門位置、加設防淤堤及提高庫水位等手段，而不能通過調整挖泥槽寬度、位置及數量等措施來達到目的。There has been a revolutionary advance in ultrashort pulse technology since the discovery of self - mode locking of ti : sapphire lasers. few - femtosecond pulses have already been generated from ti : sapphire lasers, by means of combining self - phase modulation with negative group velocity dispersion, which is similar to the way of soliton generation
鈦寶石激光自鎖模的發現使得超短脈沖技術發生了革命性的變化，利用自相位調制和負群速度色散結合的類孤子產生方式，人們已經在鈦寶石鎖模激光器上得到了脈寬只有幾個飛秒的光脈沖。Position control of d. c. motors has been done by means of pulse width modulation.
直流電機位置用脈沖寬度調製法控制。On the basis of the analysis and compare, we designed the least length of s - bend y - branch to decrease the transmission loss when the space between the outport is 250jjm. we also analyzed thoroughly dependence of half - wave voltage and bandwidth on the width, the length of modulator ' s electrodes and the gap between two electrodes
對于調制器的電極本文也進行較為深入的研究，探討了電極寬度、電極長度、電極間距對半波電壓的影響，並據此對單y相位調制器的電極結構進行了優化設計。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。On the radiation range of l - 4gw / cm2, the effects of the modulation in intensity, beam aperture, pulse width and intensity of 3 w on tsrs in frequency convector crystals have been analyzed in detail. the interrelated thresholds have been gained by calculating and theoretical evidences have been offered to prevent tsrs from damaging frequency conversion crystals, which will be applied to the engineering design of the laser drivers on high - fluence
光的強度調制、光束口徑、脈寬和強度等因素對諧波轉換晶體中tsrs的影響，並計算得出了一些相關闡值，得到了驅動器工作的臨界狀態，為防止出現tsrs的光損傷提供了理論依據，對高功率激光驅動器的工程設計具有實用價值。The method is as follows : calculating the length, angles and coordinates of pre - cast hollow slab in cartesian coordinate system, and then adjusting the width of hollow slab beams and length of cantilever boards to make the linear cantilever slabs close to the transition of mute
具體方法是：採用直角坐標系計算預制空心板斜長、首尾夾角和起終點坐標，根據計算結果與路線線形之差，多次調整空心板梁的梁板寬度和懸臂長度，使外懸臂折線滿足路線的緩和曲線線形。Both fine and coarse center frequency controls, combined with a scanwidth selector provide simple frequency domain measurements from 100 khz div
中心頻率控制有微調和粗調，掃頻寬度選擇從Flexible dimming control utilizes either an analog control signal or direct digital pwm control without external rc filtering. this also increases dimming accuracy at low brightness levels
電路採用靈活的調光控制方式，既可輸入模擬控制信號，也可直接輸入數字脈沖寬度調制信號而不需要外置rc濾波器。The specifications of the intensity modulator at 1. 3 m involved with extinction ratio better than 25 db, and low drive voltage, and wide operation band width and so on
該強度調制器工作於1 . 3 m ，具有大於25db的消光比、低驅動電壓、寬工作帶寬的特點。The specifications of the intensity modulator at 1. 054 m involved with extinction ratio better than 50 db, and low drive voltage, and wide operation band width and so on
該強度調制器工作於1 . 054 m ，具有大於50db的消光比、低驅動電壓、寬工作帶寬的特點。As far the trend of fiber - optic communication systems is to obtain higher capacity, and higher transmission speed. the intensity modulator is widely applied to a lot of fields. it is necessary for the intensity modulator subject to the laser pulse rectification systems that should be provided with following performances as high speed signal transmission and quick response and so on
光纖通信向著大容量、高速寬帶方向發展，光纖延遲線系統要求強度調制器具有高速信號傳輸、快速響應的特點，因此以linbo _ 3為襯底材料的集成光學強度調制器具有十分良好的應用前景。Modulation on widening photonic forbidden band of one - dimensional photonic crystal by optical thickness
光學厚度對一維光子晶體禁帶寬度的調制This system infinitize the width of tin bath, it can automatic find the edge of glass and have an automatic adjustment
本系統不受錫槽內部寬度限制，能自動尋找玻璃邊緣，且自動調整。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。For sound pickup, acoustic processing aims at the design of transducers or transducer arrays to achieve a durable directionality ( beam steering and width control ) as well as noise resistance
對于拾音，聲學處理的目標是設計耐用的指向性（束調整和寬度控制）及抗噪聲換能器或換能器陣列。Am minimum standards - citizens band radio service amplitude modulated transceivers operating in the 27 mhz band
最低標準. 27 mhz帶寬工作的城市帶寬無線電業務收發兩用機調制幅度Using the couple mode theory, the reflection spectrum, the peak reflectivity and the reflection bandwidth of several typical fiber grating filters have been theoretically analyzed and numerically simulated
數值模擬了它們的反射譜分佈、峰值反射率以及反射帶寬隨光纖光柵的長度和光柵折射率的調制深度的變化關系。This machine adopts plc control system shows width and speed, it adopts electromagnetism to control the motor which adjusts width, double screw rod and double straight line rolling glide transmit, five grinders at each side, three are coarse and fine grinding, two are polishing according to customer s require to collocate the wheel, which can be used to process 3mm to 8mm small flat glass and pencil edge
詳細說明：本機採用plc控制系統顯示寬度和速度，採用電磁製動機調節寬度，雙絲桿和雙直線導軌傳動，單邊五個磨頭，三個粗精磨，兩個拋光可按客戶要求配套磨輪。適用於加工38mm的中小片玻璃的平邊和圓邊。This machine adopts plc control system shows width and speed, it adopts electromagnetism to control the motor which adjusts width, double screw rod and double straight line rolling glide transmit, four gnnders at each side two are coarse grinding two are polishing, which can be used to process 3mm to 8mm small flat glass and pencil edge
本機採用plc控制系統顯示寬度和速度，採用電磁製動機調節寬度，雙絲桿和雙直線導軌傳動，單邊四個磨頭，兩個粗精磨，兩個拋光。適用於加工38mm的中小片玻璃的平邊和圓邊。分享友人