dipole array 中文意思是什麼
dipole array
解釋
偶極排列-
Electrode effects, which are always a hindrance when the dipole-dipole array is used.
電極效應在用偶極-偶極排列時是經常遇到的一種干擾因素。 -
Wide tabular mineralization can generally be detected more successfully with a pole-dipole or dipole-dipole array.
用單極偶極或偶極偶極排列一般能比較有效地探測寬的扁平狀礦體。 -
A large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning
應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量，本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析，得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現，起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成，起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大，這說明可以通過重新結構設計降低起落架噪聲。 -
Analyze the linear dipole array with uniform element spacing using the method of moments ( mom ), derive the analytical expression for the recovered signal with the direct data domain method, demonstrate the effect of the mutual coupling on the performance of the antenna array by examples, the degradation of the system caused by the mutual coupling is simulated and analyzed in two different electromagnetic environments such as the weak and strong interference
用矩量法計算了幾個信號同時照射時對稱陣子均勻直線陣的電流分佈，用直接數據域演算法推導了此接收陣列的恢復期望信號的表達式，舉例說明了互耦對陣列天線性能的影響，數值模擬了在弱干擾和強干擾下，互耦造成系統性能下降的情況並分析了原因。 -
In this thesis, our work is focused on analyzing the effects of mutual coupling between elements of the thin dipole antenna array. the effects of mutual coupling on the antennas pattern synthesis and the amplitude - phase consistency of the input impedance of the uniformly - space liner array are presented. a new method that used the mutual coupling to synthesize the pattern is been given
本文就是以此為出發點，將半波長細線對稱振子線天線陣作為研究對象，以分析天線陣列的互耦影響為核心，討論互耦對幾種方向圖綜合技術的影響，並從兩種不同的角度提出了對陣元互耦的校正方法。 -
The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics
採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。 -
Abstract : a large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning
文摘:應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量，本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析，得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現，起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成，起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大，這說明可以通過重新結構設計降低起落架噪聲。 -
In the simulation study, the parameters of dipoles were given, it would be considered whether it could be recovered correctly by dllm based on scalp potential sampling with a set of electrode array. it was also examined that how electrode number influenced the recovered quality of dipole parameters. the simulation showed that the number, position and strength of dipole set were greatly close to the original condition ; the shallower the dipoles were, the higher the precision of source localization was ; the optimal depth of dipole layer was greatly close to the ideal position ; the accuracy of source localization was increasing when more electrodes were used
在模擬研究中，首先設定已知的偶極子數目及其所在的偶極面深度等參數，然後用一定數目的電極抽取正向計算獲得的頭皮電位，考察該模型在上述理想條件下，基於頭皮電位是否能正確獲取偶極子數目及其參數、以及電極數目對結果的影響。 -
When a cluster of particles is immersed in a uniform electric field, the particles are coupled together due to the mutual interaction among them. this interaction causes the dipole moment of the cluster to be dependent upon the spatial arrangement and relative permittivity of the particles and upon the cluster size. in this work, we attempt to estimate the dipole moment of finite cubic arrays of particles, in terms of that of particle chains which has been known. we assume that a chain may be replaced by a single equivalent sphere with the same dipole moment. with replacing the chain by equivalent sphere, a cluster is simplified to a planar array, and this planar array is simplified to a chain, then the dipole moment is obtained. numerical calculations are performed. it is found that our results are acceptable
置於均勻電場中的一簇球形顆粒，由於其內部的相互作用而耦合在一起.這致使簇的感應偶極矩與簇的幾何結構，大小以及顆粒的介電常數等參量有關.試圖通過已知的鏈的偶極矩確定任意大小長方結構的簇的偶極矩.假定顆粒鏈可以被具有同樣偶極矩的一個等效介質球代替，並將具有空間結構的顆粒簇處理成面結構簇，再將面結構簡化成一個顆粒鏈，從而確定簇的偶極矩.在這一過程中，通過不斷增加等效球的尺寸，將顆粒間的相互作用包含在簇的偶極矩中.數值分析了立方結構簇的偶極矩，結果是可接受的 -
Wide tabular mineralization can generally be detected more successfully with a pole - dipole or dipole - dipole array
用單極?偶極或偶極?偶極排列一般能比較有效地探測寬的扁平狀礦體。 -
Abstract : when a cluster of particles is immersed in a uniform electric field, the particles are coupled together due to the mutual interaction among them. this interaction causes the dipole moment of the cluster to be dependent upon the spatial arrangement and relative permittivity of the particles and upon the cluster size. in this work, we attempt to estimate the dipole moment of finite cubic arrays of particles, in terms of that of particle chains which has been known. we assume that a chain may be replaced by a single equivalent sphere with the same dipole moment. with replacing the chain by equivalent sphere, a cluster is simplified to a planar array, and this planar array is simplified to a chain, then the dipole moment is obtained. numerical calculations are performed. it is found that our results are acceptable
文摘:置於均勻電場中的一簇球形顆粒，由於其內部的相互作用而耦合在一起.這致使簇的感應偶極矩與簇的幾何結構，大小以及顆粒的介電常數等參量有關.試圖通過已知的鏈的偶極矩確定任意大小長方結構的簇的偶極矩.假定顆粒鏈可以被具有同樣偶極矩的一個等效介質球代替，並將具有空間結構的顆粒簇處理成面結構簇，再將面結構簡化成一個顆粒鏈，從而確定簇的偶極矩.在這一過程中，通過不斷增加等效球的尺寸，將顆粒間的相互作用包含在簇的偶極矩中.數值分析了立方結構簇的偶極矩，結果是可接受的 -
According to basic theories for distributing regular of electric field about surface single spot current source and high density resistivity prospecting method in this paper. put forward an installation which use one current electrode or dipole current electrodes and the others prospecting at the same time to realize high density resistivity method by office date processing, such as wenner pole - dipole a, wenner pole - dipole b, wenner alpha, wenner beta, wenner gamma and pole - pole array
摘要運用地面點電流源電場的分佈規律和高密度電阻率法的基本思想，提出了分別利用單極供電、偶極子供電，其餘電極同時測量，通過室內數據整理實現高密度電阻率法的溫納對稱四機、溫納偶極、溫納微分、溫納三極a 、溫極三極b和二極等裝置。
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