電聲耦合 的英文怎麼說
中文拼音 [diànshēngǒugě]
電聲耦合
英文
electroacoustical coupling-
In chapter two we analytically study the nonlinear lattice effects for the ground state of electron - phonon interaction one - dimensional molecular crystal system
第二章用解析方法研究一維分子晶體電子-聲子耦合系統基態中晶格非線性效應。Because this transducer not only has a firm structure and uses the longitudinal mechanic - electricity coupling coefficient of piezoelectric crystals, but also can be easily made, it has very good electricity - sound ability
由於製作工藝簡單，結構堅固，且又利用壓電陶瓷的縱向機電耦合系數，因此具有良好的電聲性能。Based on the character of ultrasonic spectrum analysis, considering the affection of the circuit responsion of checking system, coupling state, position of checking transducer, this thesis established reasonable ultrasonic spectrum analysis method. using this method, several kinds of linear spectrum ( such as phase amplitude spectrum, phase power spectrum ) were researched and discussed
本文根據超聲波頻譜分析的特點，綜合考慮了檢測電路響應、耦合狀況、探頭位置等因素的影響，制定出了一套合理的超聲波頻譜分析方法，並用此方法對幾種線性譜（如相位幅度譜、相位功率譜等）進行了研究和探討。The circuit is used in high resolution resistance measuring. the coupled chaotic circuit array composed of this circuit is researched by computer simulation and circuit experiment. results show that, it is feasible to improve the stability of orders of chaotic systems and reduce noise in measuring by coupling
最後，對以這種單電源驅動的混沌電路為基本單元所構成的耦合混沌陣列在提高系統輸出的穩定性和抑制噪聲作用方面，進行了計算機模擬研究和實際的電路實驗研究，結果顯示通過耦合的方式，可以將信號檢測的精度提高近一個數量級。The ultrasonic motor is a kind of direct driver which is uses the converse piezoelectric effect of the piezoelectricity ceramics, by using transformation and the coupling of each kind of expansion and contraction vibration pattern enlarging the material microscopic distortion by resonate effect and transforming it to macroscopic movement of the rotor or the slide by the friction coupling
超聲波馬達是一種利用壓電陶瓷的逆壓電效應，通過各種伸縮振動模式的轉換與耦合，將材料的微觀變形通過共振放大和摩擦耦合轉換成轉子或者滑塊宏觀運動的直接驅動器。30 litre couplant tank. automatic pumped supply with full recirculation. visual and electronic level display. continuous couplant monitoring by flow sensor and ultrasonically
30升的耦合劑儲蓄槽。自動化泵槽裝置可以將其完全循環利用。可顯示直觀的電子層面。通過流量傳感器和超聲波地來對耦合劑進行連續監控。Theory and experiments of bulk - wave acousto - electro - optical ( aeo ) device, involving one - dimension and multi - dimension, are systematically studied. the thesis includes the following contents : coupled - wave equation theory of aeo interaction, determination of the optimum operating mode of aeo device, geometrical relationships of the anisotropic acousto - optic interaction, design and experiment of the aeo device. finally, the optimum design of ao device with beam steering theory is also studied
論文主要研究內容包括:一維和多維聲電光效應的耦合波方程及其衍射效率計算公式的建立、一維和多維聲電光器件最佳工作模式的選擇、聲電光晶體反常聲光互作用幾何關系的計算、 ln一維反常聲電光器件和kdp二維反常聲電光器件的設計製作以及實驗測試、正常與反常超聲跟蹤聲光偏轉器的優化設計。On the base of studying imaging theory of lens, the imaging theory of laser confocal scanning microscopy was analyzed in detail in this paper, and the advancement of that the optical fiber was applied to the system was described ; on the base of completed the demonstration for whole project, the experiment scheme was designed ; the relationship between the main parameters of key devices and the resolution was deduced, and the requirements of coupling efficiency and vignetting effects to optical system was analyzed ; the design of optical system and the planar scanning controlling circuit was completed ; a new method was put forward to resolved the inherent non - liner scanning problem of the galvanometer scanner by using software liner controlling in circuit design, and the perfect planar scanning was realized ; at last the low noise, high multiple and non - distortion amplify circuit of photoelectric detector was completed
本文在透鏡成像理論的基礎上，系統、深入地分析了共焦掃描顯微成像的機理，論述了應用單模光纖的激光共焦掃描顯微成像系統的優點；進行了總體方案的論證，並設計確定了單模光纖激光共焦掃描顯微成像系統的總體方案；從理論上推導分析了解析度要求與試驗系統中相關器件主要參數之間的關系，分析了系統耦合效率和漸暈現象對光學系統的設計要求；完成了方案中光學系統和二維掃描控制電路的設計，並在電路設計中採用了用軟體解決檢流計式光學掃描器（振鏡）非線性問題的新方法，能夠實現較為理想的二維模擬掃描；完成了高增益、低噪聲和低失真的探測接收系統的設計和調試。Traditional static crosstalk identification methods identify crosstalk targets only using coupling capacitance and noise amplitude information, which lead to the pessimistic results and induce a long time to ic design convergence
摘要傳統的靜態串擾噪聲識別演算法只驗證耦合電容和噪聲幅值信息，沒有考慮噪聲寬度對電路邏輯功能的影響，所以給出的結果過于保守，導致設計收斂的時間被延長。Very weak signal was detected based on the property of chaotic system ' s sensitivity to initial conditions, and noise was reduced by coupling chaotic measurement circuits
摘要利用混沌系統的初值敏感性來測量極其微弱的信號，並通過混沌測量電路耦合來抑制噪聲。The model from the input to the output of the piezoelectric traveling wave ultrasonic motor is established by synthetically using lagrange - maxwell equation, hertz elastic contact theory and coulomb friction theory, along with considering electromechanical coupling, influence of the interface force between the stator and rotor of the motor on the amplitude of the traveling wave inside the stator and dynamic contact friction friction force
利用拉格朗日?麥克斯韋方程以及赫茲彈性接觸理論，庫侖摩擦理論，考慮機電耦合效應，定、轉子間界面力對彎曲行波的影響及其動態接觸摩擦力，建立了壓電行波超聲波馬達從輸入到輸出的機電耦聯系統的數學模型。In the aspect of saw devices, for zno has high coupling factor, and aln has high saw velocity, if zno thin film was deposited on aln thin film, the multiplayer film has not only high coupling factor, but also has high saw velocity, which was suitable for saw of high frequency
在聲表面波器件應用方面，由於zno具有很大的機電耦合系數，而aln的聲表面波傳播速度較高，因此若zno和aln相結合，則不僅具有大的機電耦合系數，而且具有很高的聲表面波速度，這非常適合於製造高頻聲表面波器件。We obtain that i ) with the increase of the phonon - pseudospin interaction and the thickness of the superlattice, the phase transition temperature of the superlattice will increase. ii ) the increase of the phonon - pseudospin interaction leads to the change of the number of the pyroelectric peaks in the temperature curve of pyroelectric coefficient and to the change of the pyroelectric coefficient
研究發現，聲子與贗自旋的相互作用會影響鐵電超晶格熱電峰的數目以及熱電系數的溫度曲線的形態，而且聲子與贗自旋耦合作用的增強以及超晶格尺寸的增大都會使整個材料的相變溫度增加。In order to measure the characteristics of such semiconductor optical amplifier, we adopted a set of measurement system. this measurement system can be used to measure the characteristics of all kinds of active or inactive optical passive components. such device presents good polarization insensitivity ( < 0. 9db ), wide 3db bandwidth ( > 33nm ) at 0 - 200ma and different input signal light wavelength and power, the maximum fiber - to - fiber gain of 10db, lossless operation current of 50 - 75ma for different input signal light wavelength and power, large extinction ratio ( > 50db ) and lower noise figure ( nf ) ( < 8db )
與張瑞英博士一起，首次利用該種有源區結構制備出偏振不靈敏半導體光放大器，並在0 - 200ma注入電流范圍內獲得33nm的3db帶寬，在不同信號波長，不同信號功率0 - 200ma的注入電流范圍內，偏振相關損耗均《 0 . 9db ，在耦合差損為7db / facet的條件下，最大fiber - to - fiher增益達10db ，無損操作電流為50 - 70ma ，消光比達50db以上，而噪聲指數則低於8db ，最小可達4 . 6db 。Thirdly, the range switch circuit and filter circuit are designed in the analog input channel. to realize the safe high speed acquisition, the interface circuits are separated from the function circuits, and the isolation power with high performance and digital isolator is used to restrain the common mode disturb and noise of the input
3 .模擬輸入通道設計有量程切換電路和濾波電路，並且採用了屏蔽、浮置技術和磁耦隔離技術，使用了高性能的隔離電源和磁電耦合器，有效地抑制了輸入信號的共模干擾和噪聲，實現了安全、高速的數據採集。Circuit experiments consisting of two measuring units and computer analysis prove the method is effective, and circuit experiments consisting of n measuring units show noise reduction will be better as n increases
兩個混沌測量電路的耦合實驗和計算機數值計算驗證了這種方法是有效的，又進一步討論了由n個單元電路構成的耦合實驗，可得到隨著n的增加它抑制噪聲的能力也增強。16 lin s, chang n, nakagawa o s. quick on - chip self - and mutual - inductance screen. in proc
同時插入屏蔽和線網排序是一種減少耦合電容和耦合電感噪聲的有效方法。Electroacoustics - simulators of human head and ear - part 3 : acoustic coupler for the calibration of supra - aural earphones used in audiometry
電聲學.人頭和耳模擬器.第3部分:用於聽力測定計的超聽力耳機校正用聲耦合器An algorithm to resolve the coupling effect problem is proposed during the cross point assignment ( cpa ) stage. in the algorithm, the priority queue concept and the rip - up and reroute strategy are combined to control crosstalk noise caused by interconnect coupling capacitance. first, the nets are arranged into different priority queues according to their weighted sum of their length and criticality. then, the cpa problem for one queue of nets is translated into a linear assignment problem. after the assignment of one queue of nets, a post - cpa checking routine is performed to check and rip up the net pairs which violate the crosstalk noise constraint and then push them into the next queue to be reassigned. the algorithm is tested by a set of bench mark examples, and the experimental results are promising
提出了一種在過點分配階段解決噪聲耦合效應問題的演算法.該演算法採用優先隊列同拆線重布策略相結合的方法，控制由互連線耦合電容引起的串擾噪聲.演算法中，首先按照線長和約束限制，將線網劃分到若干個優先隊列中.然後，將每個優先隊列的過點分配問題轉換為線性分配問題.在完成一個線網隊列的分配后，通過過點分配后處理過程檢查串擾約束滿足情況，對違反約束的線網對進行拆除，放入后續線網隊列進行重新分配.實驗數據表明，該演算法能夠取得好的效果Abstract : an algorithm to resolve the coupling effect problem is proposed during the cross point assignment ( cpa ) stage. in the algorithm, the priority queue concept and the rip - up and reroute strategy are combined to control crosstalk noise caused by interconnect coupling capacitance. first, the nets are arranged into different priority queues according to their weighted sum of their length and criticality. then, the cpa problem for one queue of nets is translated into a linear assignment problem. after the assignment of one queue of nets, a post - cpa checking routine is performed to check and rip up the net pairs which violate the crosstalk noise constraint and then push them into the next queue to be reassigned. the algorithm is tested by a set of bench mark examples, and the experimental results are promising
文摘:提出了一種在過點分配階段解決噪聲耦合效應問題的演算法.該演算法採用優先隊列同拆線重布策略相結合的方法，控制由互連線耦合電容引起的串擾噪聲.演算法中，首先按照線長和約束限制，將線網劃分到若干個優先隊列中.然後，將每個優先隊列的過點分配問題轉換為線性分配問題.在完成一個線網隊列的分配后，通過過點分配后處理過程檢查串擾約束滿足情況，對違反約束的線網對進行拆除，放入后續線網隊列進行重新分配.實驗數據表明，該演算法能夠取得好的效果分享友人