非雙晶的 的英文怎麼說
中文拼音 [fēishuāngjīngde]
非雙晶的
英文
untwinned- 非 : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
- 雙 : Ⅰ形容詞1 (兩個) two; twin; both; dual 2 (偶數的) even 3 (加倍的) double; twofold Ⅱ量詞(用...
- 晶 : Ⅰ形容詞(光亮) brilliant; glittering Ⅱ名詞1. (水晶) quartz; (rock) crystal 2. (晶體) any crystalline substance
- 的 : 4次方是 The fourth power of 2 is direction
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By numerical calculation and analysis of bimorph and unimorph piezoelectric beams, the difference and applicable scope between linear and nonlinear models were found
通過對雙壓電晶片梁和單壓電晶片梁的數值計算及分析得到線性與非線性模型之間的差別和適用范圍。According to this, the phase - matching conditions, effective nonlinear coefficients, acceptances of angle and wavelength for biaxial " crystals have been discussed in detail. thermal lens effect is an important factor which affects the quality of laser beam and the amount of output power
實驗上,採用了雙軸晶體lbo作為倍頻晶體,因此對雙軸晶體相位匹配、有效非線性系數的計算、允許角、允許波長給出了較完整的分析。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。The refractive indices at 12 wave lengths in the visible region were measured with the minimum deviation method, showing that kabo is a negative uniaxial optical crystal with moderate birefringence. the measurement of nonlinear optical coefficient dn = 0. 45pm / v
用最小偏離法測試了可見光區十二個波段處的晶體折射率,結果表明kabo晶體屬負單軸晶,具有適中的雙折射率。晶體的非線性光學性質測試顯示,該晶體非線性光學系數為d _ ( 11 ) = 0 . 45pm / v ,可實現相位匹配。This dissertation majorly researchs and designs full digital dc driving system with fuzzy control. it makes a scheme argumentation firstly, analyzing the pid algorithm and fuzzy control algorithm the ordinary digital pulse trigger algorithm and the double remainder method of pulse trigger in detail, and fuzzy control and the double remainder method are put forward to settle the under - mentioned problems, namely, the new viewpoint and the task having finished in this dissertation as follows : ( 1 ) in rder to overcome the influence of dc motor ' s parameter changing with time and nonlinear on the control system performance, this dissertation adopts fuzzy control as outside regulator and pi control as inside regulator in double regulators of the full digital dc motor driving system design ;. ( 2 ) aiming at the pulse trigger reliability of the ordinary d igital pulse trigger being low and leaking the pulse or the order of pulse confusion, this paper adopts the double remainder algorithm with short response time high pulse trigger reliability good adaptability and anti - jamming ; ( 3 ) this dissertation adopts tms320lf2407 which has good performance as major control chip this chip has power function with fast calculation capability, and accomplishes the software and hardware design in the dc motor driving system with fuzzy control ; ( 4 ) this dissertation also puts emphases on anti - jamming in hardware and software ; ( 5 ) after having designed the sample of full digital dc motor driving system with fuzzy control, a lot of experiments are performed to verify the performance and settles problems during experiment. the result of experiment proves the feasibility of design
首先進行了方案論證,對模糊控制演算法和數字pid調節演算法、觸發脈沖的一般演算法和雙余演算法進行了詳細地研究分析,提出應用模糊控制和雙余法解決下述問題,即該論文主要的新見解和所完成的工作: ( 1 )為了克服直流電機參數時變性和非線性因素對控制性能的影響,本設計中,雙閉環調速系統的外環採用模糊控制,內環採用pi控制,使系統在一定范圍內對直流電機參數變化和非線性因素影響有自適應能力; ( 2 )針對常規數字觸發器演算法中觸發脈沖的可靠性不高,經常出現漏脈沖或是脈沖混亂的情況,本文採用雙余法,該演算法具有響應快,可靠性高,具有良好的適應性及抗干擾能力; ( 3 )本設計中採用了速度快、功能強的tms320lf2407作為系統的主控晶元,應用該晶元完成系統的軟硬體設計: ( 4 )本文對系統抗干擾的軟硬體措施進行了重點研究; ( 5 )設計了具有模糊控制的全數字直流傳動系統原理樣機,並進行了試驗驗證,對試驗過程中出現的問題及時解決,最終實驗結果證明設計是可行的。It fits optic crystal, glass, quartz crystal slice, porcelain slice, linb03, sapphire and metal, nonmetal brittleness material both and single side polishing andrubbing of pressurizing components
本機主要適用與石英晶片、光學水晶、藍寶石、鈮酸鋰、玻璃、陶瓷片等薄脆金屬或非金屬材料的雙面研磨或拋光。It fits smd surface crystal, optic crystal, optic glass, semiconductor silicon slice, quartz crystal slice, piezoelectricity porcelain, arsenide gallium, linb03, molybdenum slice and metal, nonmetal brittleness material both single side polishing and rubbing of pressurizing cmponets
本機主要適用於矽片、石英晶片、 smd表面貼裝晶體、光學水晶、鈮酸鋰、玻璃、陶瓷片等薄脆金屬或非金屬材料的雙面研磨或拋光。Experimental results show, with the not - uniform two - direction ballasting technology, the peak junction - temperature at the center of the chip can be lessened 7 - 10 surface temperature of the case can also reduce 3 - 7, and the heat - dissipating property of the power devices has distinct improvement
實驗結果表明:具有非均勻雙向鎮流電阻結構的雙極功率器件,其晶元中心峰值結溫ih了村技人學博士論文可降低7 10ac ,谷殼表面的溫度也可降低3 7c ,器件的敝熱特性明顯岱島。Difference iterative method was used to estimate numerically director configurations in the nlc - bl037 cell in this paper. the refractive indices and phase retard of nlc in electric field was presented on the basis of the calculation of liquid crystal director distributions. then we analysed the diffraction phenomenon when the linearly polarized light was controlled by diffraction grating which was based on rectangular grating and sinusoidal phase grating models and we got it ’ s math model 。 finally we designed the nlc phase grating and we did the experiment to validate the theoretic calculation
文中利用差分迭代法計算了向列相液晶bl037盒中指向矢分佈的計算,根據指向矢的分佈情況得到了向列相液晶的雙折射率分佈和非常光通過液晶盒產生的相位延遲隨電壓變化;並在矩形光柵和正弦相位光柵的基礎上,分析了入射偏振光通過液晶電控光柵所產生的衍射情況。Decreasing cell thickness will increase the influence of surface interaction to mid - cell phase transition, and increase the temperature, anchoring field strengths region for biaxial phase. at very high value of hc, phase symmetry in mid - cell lags behind that in surface. keywords : liquid crystal, phase transition, surface energy
對有限厚度液晶盒,減少盒厚可增加表面相互作用對系統的影響,使雙軸相所在溫度區域增加,表面與盒中心液晶的對稱性並非總是同步,當| h _ b |較大時,盒中心液晶雙軸相的對稱性明顯滯後於表面。Magnetic properties of nanocrystalline two - phase permanent magnetic alloys by crystallizing from amorphous state
非晶晶化法制備納米晶雙相永磁合金的磁性Furnished with the germany - imported 5 - roller calender production line and the related technical software, plus the latest technical standard in taiwan and west germany, jiangyin hongkai plastic co., ltd. is specialized in a variety of special - typed sheet products of credit card layer, chip base, subway cards, remembrance cards, advertising cards, membership cards, file plates, file s rolled chips and color double super dull printing sheets, all kinds of intelligence cards, ic cards, contactless cards and other applications of pvc card sheets. with the 8, 000 tons of annual output, these productions are applied extensively and fairly competitive in both domestic and overseas markets
江陰宏凱塑膠有限公司引進德國製造五輥壓延機生產線及技術軟體,採用國際最新的技術標準,專業生產經營pvc信用卡面層芯層片基,地鐵卡電話卡等單卡片材,紀念卡廣告卡會員卡吊牌基材文件夾卷晶元及彩色雙面超級消光印刷片基材,各種智能卡ic卡非接觸卡燈箱片等各種用途的pvc卡片基材,屬國際國內高檔次高技術含量產品,應用面廣,具有很強的國際國內市場競爭能力,年產量達8000噸。In succession, tini thin film is deposited on single - crystal silicon substrate using optimized parameters utilizing sputtering, and its transformation temperature ( a * ) is 72 ? indicated by dsc curve after being annealed in an ultra - high vacuum ( uhv ) chamber. in addition, the composition of the silicon - based tini film was analyzed by an energy dispersive x - ray spectroscopy ( eds ), and the ti content in the film is approximately 51at %
按照改進的工藝參數,在單晶硅襯底上濺射-淀積了tini薄膜,並進行了超高真空退火, dsc法測得其馬氏體逆相變峰值溫度為72 ,利用能譜分析( eds )技術測得其ti含量約為51at ,通過對非晶tini薄膜與單晶硅襯底之間的界面進行eds及x射線衍射( xrd )分析,發現在用大功率( 2000w )直流磁控濺射法制備tini薄膜過程中,存在ti 、 ni與si的雙向擴散,發生了界面反應,並有三元化合物ni _ 3ti _ 2si生成。We analyze the generation of external cavity frequency - doubling with knbo3 crystal theoretically. in order to get the second - order nonlinear conversion from 858nm to 429nm with knbo3, we use non - critical type - i phase - matching to avoid the walk - off effect the corresponding optimum focusing condition is as followings : double refraction parameter b = 0, focus parameter = 2. 84, optimum phase mismatch parameter = 0. 574. based on the theoretical analysis and numerical calculations, we obtain the ideal nonlinear conversion coefficient about 1. 45 % / w with crystal length of 7mm and 2. 07 % / w with crystal length of 10mm at the phase - matching temperature around 23. 50c
根據對其倍頻原理及性能的分析討論,在用該晶體完成波長從858nm到429nm的二階非線性轉換時,採用非臨界相位匹配條件(此時無離散效應,對應的雙折射參數b = 0 ,共焦長度為= 2 . 84 ,最佳相位失配因子為= 0 . 574 ) ,在相位匹配溫度約為23 . 5時,理論上通過計算得到理想情況下非線性轉換系數約為1 . 45 / w (長度為7mm ) , 2 . 07 / w (長度為10mm ) 。Abstract : to against the fact of the commercial available white noise generators are very expensive which is not good for general operations, a simple and effective limited band white noise generator is design. the generator is using the feature of dual polarity transistor, i. e., the power spectrurn density of particulate noise is not related to frequency in very wide band and close to white noise. the concrete circuit is also given
文摘:針對市售白噪聲發生器價格昂貴,不利於一般場合使用的問題,介紹利用雙極性晶體管散粒噪聲功率譜密度在非常寬的范圍內與頻率無關,屬白噪聲這一特性,設計了一種簡捷、有效的限帶白噪聲發生器,並給出了具體電路。By using x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), transmission electron microscopy ( tem ), differential scanning calorimeter ( dsc ) and optical microscopy, mechanical activation is investigated. and during the study, two new innovative processes or thoughts, " dual activation reactive milling " and " in situ synthesis in salt bath activated by ma " has been presented for the synthesis of nanometer - sized powder. the phase transformation and oxidation control of cu - cr system during ma is also investigated
在採用x射線衍射分析( xrd ) 、掃描及透射電子顯微鏡( sem tem ) 、能譜分析( eds ) 、熱分析( dsc ) 、激光粒度測試等試驗手段對ma過程機械激活作用的研究中,發現並提出了「雙重激活反應研磨」和「機械激活鹽浴合成」兩種創新工藝思路;同時,對cu - cr難互溶體系在機械合金化過程中飽和固溶體、氧化物非晶的形成以及氧化現象的控制進行了探討分析。Some usual measurement methods are introduced, and their advantages and disadvantages are also analyzed in detail. in view of the defects of the usual methods and the latest developments in bi - photon effect, an all - fiber - measurement system for ultra short pulse was designed in this work, based on the knowledge of nonlinear fiber optics, application of passive optic apparatus, optic - electric transformation, analog circuit, micro chip unit ( mcu ) and so on
針對常用方法的不足,結合近些年來雙光子效應的研究成果,我們採用雙光子探測器取代常用的非線性晶體,並首次利用光纖延遲取代空間光路延遲,綜合了非線性光纖光學、光無源器件的應用、光電轉換、模擬電路、單片機等知識,設計出了一套全光纖超短脈沖測量系統。分享友人