軸雙晶 的英文怎麼說
中文拼音 [zhóushuāngjīng]
軸雙晶
英文
ala twinning-
New calculation method of the optic axial angle of the biaxial crystal
雙軸晶體光軸角計算的新方法When ct20 alloy was tensioned at 20k, the main deformation mechanism in equiaxed microstructure was the slip of dislocations, and in bimodal microstructure the slip of dislocations and a small amount of twinning and in lamellar microstructure a large amount of twinning
Ct20合金20k拉伸變形時，等軸組織主要是位錯的滑移起主導作用，雙態組織除了位錯滑移外還有少量的變形孿晶產生，片狀組織中則能觀察到數量較多的孿晶。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。When we applied electric field, the the oritation of liquid crystal molecule axis reset. it induced the roate of optic axis. at last, the birefringence will change. this is the voltage - dependent birefringence of liquid
例如當對液晶施加電場時，液晶分子軸的排列會變化，從而引起液晶光軸的轉動，最終導致了液晶雙折射率的變化，這就是我們所說的液晶電控雙折射特性。Not only general suitability of this method is independent of gratings model, geometry structure, medium properly and crystal axis orientation ( including uniaxial crystals and biaxial ones ), but also physical concepts are clear and formula is concise
該方法不僅不受光柵模型、幾何結構、介質性質和晶體取向（包括單軸和雙軸晶體）的影響而具有普遍適用性，而且其物理概念清晰、公式簡潔。This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up
全文共分八章，取得的主要成果及創新點如下： （ 1 ）首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理，在考慮如下物理過程和參量的基礎上：光與物質的雙光子相互作用； stokes光的傍軸衍射； langevin （郎茲萬）噪聲源；晶體表面反射和端面反射；增益系數、光束口徑、脈寬和三倍頻光能量密度，推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。This paper derived the transfer matrix of the bilayer structure composed of left - handed and right - handed materials, and computed the density of states ( dos ) along the axis of the finite one - dimensional photonic crystal, which was constructed out of n such bilayer structures periodically
摘要推導出了由左右手材料構成的雙層結構的轉移矩陣，計算了由n個該雙層結構周期性排列所形成的一維有限長度光子晶體沿其軸線方向的態密度。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。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。Hence, the requirements of the servo control card are getting much sophisticated. in this thesis, the research work and implementation details of a 6 axes servo control card are discussed. this card is based on the ti company ? dsp chip tms320f240 and has realized the following functions : a ) signal encoder, b ) position limit, c ) dual ram communication with cpu, d ) coordinated control e ) dia conversion
該卡以ti公司的16位定點數字信號處理器tms320f240為核心晶元，實現6路編碼器信號輸入處理，軸限位中斷處理，通過雙埠ram與pc進行通訊，接收pc發送過來的控制指令和數據，完成插補運算、聯動運算等控制，通過d / a轉換電路，將結果轉化為模擬電壓送伺服放大器驅動電機。The catena product wholly design for transporting definite corrosive medium have granule or crystal, adopt steel pad uhmw - pe to made it. owned excellent resist causticity and reputably resist attrition, structure and design is model of hang arm front - karat, impeller is half karat model no front cover, boost up transit capability of passage. let the granule and impurity of medium pass pump - cavity quickly not to jam
本系列產品專為輸送具有一定腐蝕性且含有細顆粒或有結晶的介質而設計，採用鋼襯超高分子量聚乙稀模壓成型工藝製造，具有優異的耐腐蝕性和卓越的耐磨性能，結構設計為懸臂前開式，葉輪為半開式無前蓋板，增強了流道內的通過性，使介質中的顆粒及雜質很快通過泵腔而不會堵塞，軸封為k型氟橡膠密封環外帶冷卻水套，兼顧了耐腐與耐磨的雙重要求。Under the mean field assumption, the surface energy related to the orientation of directors, order parameters, anchoring field strengths hb, hc is derived
導出在此平均場作用下雙軸向列相液晶錶面能與指向矢、序參數以及h _ b 、 h _ c有關的一般公式。Having one direction along which double refraction of light does not take place. used of a crystal
單軸晶體的有一個方向的，沿此方向不發生光的雙折射。用於晶體分享友人