調制晶體 的英文怎麼說
中文拼音 [diàozhìjīngtǐ]
調制晶體
英文
modulating crystal- 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...
- 制 : 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...
- 晶 : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
- 體 : 體構詞成分。
- 晶體 : [晶體學] crystal; vitrella; crystal body; crystalloid; x-tal
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Based on the tms320f240 controller produced by ti company, the hardware and software designation of the symmetrical voltage space - vector pwm is presented. designed a digital controller with tms320f240 to modulate the speed of the motor, in which the keyboard and led display are bedded. it can be to set the frequency of motor and display the run frequency of motor in real time
基於ti公司的tms320f240控制晶元,介紹了對稱空間電壓矢量硬體設計和軟體設計,採用tms320f240設計了一款用於電機變頻調速的數字控制器,該控制器上設計有鍵盤和led顯示,可以設定和動態顯示電機運行頻率。The objective of pif is to realize a certain distribution of interference spectrum, while that of the achromatic wave plate is to realize the retardation by using several crystals to modulate the input beam
Pif是要實現一定的干涉光譜分佈;消色散波片則是要通過多塊晶體對入射光的調制實現一定的位相延遲。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。In those books of electro - optics effect, bso crystal material possesses the advantage of low driving voltage, wide modulating rage etc, and take care of superiorly
在各種電光效應材料中, bso晶體以其半波電壓低,調制幅度大等顯著優點而備受青睞。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The mechanism of index ellipsoid of linbo _ 3 crystal distorted with an external applied electric field by means of the electro - optic tensor as investigated. based on the operation principle of m - z waveguide, the operation mechanism of
電光效應理論是從雙折射晶體的折射率橢球出發,分析外加調制電場通過晶體電光張量對折射率橢球的影響,從而分析電光效應的機理。This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller
本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上,將通信理論中的直接序列擴頻技術( dsss )用於解決低壓電力線通信的干擾問題,主要研究內容如下: ( 1 )用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析,分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析,驗證dsss技術在本系統中的可行性; ( 2 )由dsss技術對濾波系統的要求,根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路; ( 3 )用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路,構造出低壓電力線載波通信系統,並採用atmel公司的單片機設計了接收和發射電路的微控制器; ( 4 )分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗,並對結果進行分析,驗證了dsss技術對干擾信號的抑制作用。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。In this paper, in the course of studying the physical principles of electro - optics effect of bso, the characteristic of bso and ( the planar electric field image ) is analyzed thoroughly on the based of swing modulate theory
本論文在對bso晶體電光效應物理機理的研究中,從晶體的振幅調制理論出發,對bso晶體特性以及bso晶體內形成二維電場圖像進行了深入的分析。The main content is design of digital man - machine interface system, a speed regulating system of good stabilization and dynamic performance ; software for appraising the performance of wire feeder. the first, a digital man - machine interface system using at89s8252 singlechip is designed. the system uses sd7218a keyboard / display chip with serial bus interface
首先,人機交互系統選用at89s8252為核心控制晶元,選用具有串列總線介面的sd7218a鍵盤/顯示晶元完成了數字化人機交互系統軟、硬體設計;採用rs - 485總線實現主控系統和人機交互系統的數據交互;系統採用數字編碼器和鍵盤配合的方式實現焊接參數的選擇和設定,同時還具有最優參數存儲、調用等功能。At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength
由於準相位匹配技術有其獨特的優勢,可以利用非線性光學晶體的最大二階極化張量,如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ ( 33 ) ,其有效非線性系數高出普通非線性光學介質(如bbo 、 lbo 、 ktp )一個數量級,而且可以人為靈活設計調制周期,通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段,選擇無走離效應,解決了常規pm難以解決的問題,拓寬了非線性晶體的應用范圍,極大地提高了頻率轉換效率,已成為非線性光學材料和固體激光器的研究熱點之一。High power solid modulator with insulated gate bipolar transistor
絕緣柵控雙極晶體管大功率固態調制器Now, people are trying to use various methods, including the electro - optics effect of bso, to modulate the wavefront of light or modulate its phase
人們正在嘗試著利用bso晶體的電光效應以各種方式進行光波的波前調制和相位調制。Critical circuits in developing this board, such as tht modulation circuit, demodulation circuit, pll and filter, were analyzed in detail. parameters adopted in these circuits were also calculated. based on all that mentioned above, a rf board was implemented and related tests and experiments were successfully done as well
本文主要對cdpd移動終端數據機的硬體開發中的關鍵部分?高頻部分電路進行了研究,論文在cdpdv1 . 1規范的基礎上,提出了射頻部分電路的實現方案,選擇了合適的核心晶元,並對電路中的調制解調電路、鎖相環、濾波器等關鍵模塊進行了較為詳細的分析,對電路中的有關參數進行了計算。On behalf of pockels effect of electro - optic crystals, or kerr effect, various optical addressed spatial light modulator can be developed to the realize electrically driven spatial light modulation, so as to control such transfer conditions as converging, diverging, defecting and transferring
利用電光晶體的普克爾斯效應或克爾效應可以研製出各種光尋址空間光調制器來進行電驅動下的空間光調制,以此來控制光束的聚散、偏轉等傳播狀態。After analyzing the characteristics of the lithium niobate crystal and the principle of electro - optic phase modulation & the coupling of single - mode fiber with optical waveguide, the fabrication of the single - mode lithium niobate bar waveguide and v - groove has been studied, the new project in which the lithium niobate v - groove is used for the coupling of the single - mode fiber with optical waveguide is put forward
在分析了鈮酸鋰晶體的相關特性、電光相位調制的基本原理以及單模光纖和光波導的對接耦合以後,研究了單模鈮酸鋰條形波導和鈮酸鋰v型槽的製作工藝,提出了使用鈮酸鋰v型槽實現單模光纖與波導耦合的方案。With the existing condition, the bar waveguide on the lithium niobate wafer with liquid phase proton - exchanged method has been fabricated and the benzoic acid is used as the proton source. a series of research on the domain inversion in lithium niobate crystal with proton - exchanged method have been done. and then the operation and the process of domain inversion in lithium niobate crystal with proton - exchanged method has been used
實驗方面,利用實驗室現有條件,在鈮酸鋰晶片上以苯甲酸為質子源,用液相質子交換法製作了條形波導;對用質子交換法實現鈮酸鋰晶體疇反轉進行了一系列實驗研究,在此基礎上提出了質子交換法實現鈮酸鋰晶體疇反轉的工藝過程,實現了疇反轉並腐蝕得到了v型槽;設計製作了帶尾纖的電光相位調制器,最後進行封裝。If we have control over the transistor ' s emitter current by setting diode current with a simple resistor adjustment, then we likewise have control over the transistor ' s collector current
我們只要簡單的調節電阻,設定二極體電流,就能控制晶體管的發射極電流,於是也就能控制晶體管集電極電流。Conductivity modulation transistor
電導率調制晶體管In a laser printer, a device that uses a modulator crystal to deflect a beam of light and effectively turn it on or off
在激光印刷機中的一種裝置,它利用一塊調制晶體使光束偏轉並將其接通或斷開。分享友人